Go语言视频零基础入门到精通

javalearner

package com.gis.biz; import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set; import javax.Servlet.http.HttpServletRequest; public class ObjectRef { //用反射填充对象，得到对象，
  public static Object getInstance(Class ccc, Map map)
    throws ClassNotFoundException, InstantiationException,
    IllegalAccessException, SecurityException, NoSuchFieldException,
    NoSuchMethodException, IllegalArgumentException, InvocationTargetException{
       String cname = ccc.getName();
       Object obj = null;
     Class c = Class.forName(cname);
   obj = c.newInstance();
   Set set = map.keySet();
   Iterator it = set.iterator();
   while(it.hasNext()){
    String methodName = (String)it.next();
    System.out.println();
    Field ff = c.getDeclaredField(methodName);
    Object value= map.get(methodName);
    String mName = "set"+methodName.substring(0, 1).toUpperCase()+methodName.substring(1);
    Method m = c.getDeclaredMethod(mName, ff.getType());
    m.invoke(obj, value);
   }
   return obj;
  } //把form 表单中的数据转化成map里的属性--值
  public static Map getMap(HttpServletRequest request){
   Map map = new HashMap();
   Enumeration en =request.getParameterNames();
   while(en.hasMoreElements()){
    String formName = (String) en.nextElement();
    String l = request.getParameter(formName);
    map.put(formName, l);
   }
   return map;
  
  }
} 这是本人在做web 项目时 的一点小的应用，能够省去大量的request.getParameter，希望大家能再给点意见，有什么不足帮忙补充 谢谢