Go语言视频零基础入门到精通

水中月

  一、私有文件夹下的文件存取（/data/data/包名）

java代码：
import java.io.FileInputStream;

import java.io.FileOutputStream;

import org.apache.http.util.EncodingUtils;





public void writeFileData(String fileName,String message){

try{

FileOutputStream fout = openFileOutput(fileName, MODE_PRIVATE);

byte [] bytes = message.getBytes();

fout.write(bytes);

fout.close();

}

catch(Exception e){

e.printStackTrace();

}

}



public String readFileData(String fileName){

String res="";

try{

FileInputStream fin = openFileInput(fileName);

int length = fin.available();

byte [] buffer = new byte[length];

fin.read(buffer);

res = EncodingUtils.getString(buffer, "UTF-8");

fin.close();

}

catch(Exception e){

e.printStackTrace();

}

return res;

}

二、从resource中的raw文件夹中获取文件并读取数据（资源文件只能读不能写）

java代码：
public String getFromRaw(String fileName){

String res = "";

try{

InputStream in = getResources().openRawResource(R.raw.test1);

int length = in.available();

byte [] buffer = new byte[length];

in.read(buffer);

res = EncodingUtils.getString(buffer, "UTF-8");

in.close();

}

catch(Exception e){

e.printStackTrace();

}

return res ;

}

三、从asset中获取文件并读取数据（资源文件只能读不能写）

java代码：
public String getFromAsset(String fileName){

String res="";

try{

InputStream in = getResources().getAssets().open(fileName);

int length = in.available();  byte [] buffer = new byte[length];

in.read(buffer);

res = EncodingUtils.getString(buffer, "UTF-8");

}

catch(Exception e){

e.printStackTrace();

}

return res;

}