Android私有文件资源文件的存取

一、私有文件夹下的文件存取（/data/data/包名）

复制到剪贴板  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）
   

复制到剪贴板  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）
   

复制到剪贴板  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;  
   }