Go语言视频零基础入门到精通

javalearner

实现功能:
用手机客户端进行登录服务器,然后返回消息进行交互.

服务器代码:
LoginServlet:


package
  com;


import
  java.io.ByteArrayOutputStream;

import
  java.io.DataOutputStream;

import
  java.io.IOException;

import
  java.io.OutputStream;


import
  javax.servlet.ServletException;

import
  javax.servlet.http.HttpServlet;

import
  javax.servlet.http.HttpServletRequest;

import
  javax.servlet.http.HttpServletResponse;

[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
/** */
/*******************************************************************************
  *
  * @author zdw
  *
  */

@SuppressWarnings(
"
serial
"
)

public
  
class
  LoginServlet
extends
  HttpServlet
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
{

     public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         this.doPost(request, response);
     }

     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         // 得到客户端传入的数据(用户名和密码)
         String username = request.getParameter("username");
         String password = request.getParameter("password");
         // 构建输出流
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         DataOutputStream dos = new DataOutputStream(baos);
         // 逻辑操作(这里写你的逻辑判断)
         if ("zdw".equals(username) && "admin".equals(password))
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]        [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
             // 响应数据
             dos.writeUTF("true");
         } else
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]        [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
             // 响应数据
             dos.writeUTF("false");
         }
         //
         byte[] data = baos.toByteArray();
         // 设置服务器响应参数
         response.setStatus(HttpServletResponse.SC_OK);
         response.setContentLength(data.length);
         response.setContentType("application/octet-stream");
         OutputStream os = response.getOutputStream();
         os.write(data);
         os.close();
     }

}



手机客户端代码:
LoginForm:


package
  com;


import
  java.io.DataInputStream;

import
  java.io.IOException;

import
  java.io.OutputStream;


import
  javax.microedition.io.Connector;

import
  javax.microedition.io.HttpConnection;

import
  javax.microedition.lcdui.Alert;

import
  javax.microedition.lcdui.AlertType;

import
  javax.microedition.lcdui.Command;

import
  javax.microedition.lcdui.CommandListener;

import
  javax.microedition.lcdui.Display;

import
  javax.microedition.lcdui.Displayable;

import
  javax.microedition.lcdui.Form;

import
  javax.microedition.lcdui.TextField;

import
  javax.microedition.midlet.MIDlet;

import
  javax.microedition.midlet.MIDletStateChangeException;

[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
/** */
/**
  * 用Http方式与服务器交互
  *
  * @author zdw
  *
  */


public
  
class
  LoginForm
extends
  MIDlet
implements
  CommandListener
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]
{
     private Form form = null;
     private Display display = Display.getDisplay(this);;
     private Command login = null;
     private Command exit = null;
     private TextField username = null;
     private TextField password = null;
     private Alert alert = null;
     private Alert error = null;

     public LoginForm()
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         form = new Form("用户登录");
         display.setCurrent(form);
         login = new Command("登录", Command.SCREEN, 1);
         exit = new Command("退出", Command.EXIT, 1);
         form.addCommand(login);
         form.addCommand(exit);

         username = new TextField("用户名", "", 20, TextField.ANY);
         password = new TextField("密码", "", 20, TextField.PASSWORD);

         form.append(username);
         form.append(password);
         form.setCommandListener(this);
     }

     public void initAlertOK()
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         alert = new Alert("提示", "登录成功!!
您的用户名为:" + username.getString()
                 + "
密码为:" + password.getString(), null, AlertType.INFO);
         alert.setTimeout(Alert.FOREVER);
         display.setCurrent(alert);
     }

     public void initAlertError()
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         error = new Alert("提示", "登录失败,用户名或密码错误", null, AlertType.ERROR);
         display.setCurrent(error);
     }

     protected void startApp() throws MIDletStateChangeException
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{

     }

[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    /** *//**
      * 事件处理
      */
     public void commandAction(Command cmd, Displayable dis)
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
         // 点击退出按钮事件
         if (cmd.getCommandType() == Command.EXIT)
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]        [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
             System.out.println("exit");
             this.notifyDestroyed();
         }
         if (cmd == login)
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]        [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
             // 必须开启独立线程来处理Http请求,否则会造成死锁
             new Thread(new Runnable()
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]            [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
                 public void run()
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                     try
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                         inTurnServer();
                     } catch (Exception e)
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                         e.printStackTrace();
                     }
                 }
             }).start();

         }
     }

[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    /** *//***************************************************************************
      * 与服务器交互相关代码
      */
     public void inTurnServer()
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         try
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             // 服务器请求地址
             String url = "http://localhost:8888/LoginWeb/LoginServlet";
             // 用户输入的用户名
             String username = this.username.getString();
             // 用户输入的密码
             String password = this.password.getString();
             // 用url建立一个Http连接(安全的)
             HttpConnection conn = (HttpConnection) Connector.open(url);
             // 设置请求类型为POST
             conn.setRequestMethod(HttpConnection.POST);
             // 设置一般的请求属性
             conn.setRequestProperty("Content-Type",
                     "application/x-www-form-urlencoded");
             conn.setRequestProperty("User-Agent",
                     "Profile/MIDP-1.0 Configuration/CLDC-1.0");
             conn.setRequestProperty("Content-Language", "en-US");
             conn.setRequestProperty("Accept", "application/octet-stream");
             conn.setRequestProperty("Connection", "close");

             // 要发送的数据
             String formData = "username=" + username + "&password=" + password;
             // 转换显字节流
             byte[] data = formData.getBytes();
             // 设置写入流的长度
             conn.setRequestProperty("Content-Length", Integer
                     .toString(data.length));
             OutputStream os = conn.openOutputStream();
             os.write(data);
             os.close();
             // 得到Http响应代码
             int rc = conn.getResponseCode();
             // 正常响应
             if (rc == HttpConnection.HTTP_OK)
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]            [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
                 // 构建输入流
                 DataInputStream dism = new DataInputStream(conn
                         .openInputStream());
                 // 读取服务器返回的字节流
                 String result = dism.readUTF();
                 dism.close();
                 // 判断
                 if (result.equals("true"))
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]                [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
                     // 显示登录成功
                     this.initAlertOK();
                 }
                 if (result.equals("false"))
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]                [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
                     // 显示登录失败
                     this.initAlertError();
                     // 将输入框置空
                     this.username.delete(0, this.username.getString().length());
                     this.password.delete(0, this.password.getString().length());
                }
             }
         } catch (IOException e)
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]        [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{
             e.printStackTrace();
         }
     }

     protected void destroyApp(boolean arg0) throws MIDletStateChangeException
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{

     }

     protected void pauseApp()
[img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]    [img]http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/http://www.java3z.com/cwbwebhome/article/article7/[原创]J2ME-J2EE实现用户登录交互[/img]{

     }

}



注意此工程为MyEclipse工程,您需要安装wtk和tomcat才能正常运行此程序.

登录图:   

  
  
   
   

     
   

     
   
  

复制代码

源码下载：http://file.javaxxz.com/2014/10/11/040111765.zip