FILE文件储存

文件输出流--存储进去

FileOutputStream fos= null;  

fos = context.openFileOutput(filename, Context.MODE_PRIVATE);  
fos.write(filecontent.getBytes("UTF-8"));  

fos.close();  

默认位置 /data/data/package/file

文件输入流-提取数据

FileInputStream in = null;  
ByteArrayOutputStream bout = null;  
byte[]buf = new byte[1024];  
bout = new ByteArrayOutputStream();  
int length = 0;  
//得到输入流  
in = context.openFileInput(filename); 
while((length=in.read(buf))!=-1){  
    bout.write(buf,0,length);  
}  
byte[] content = bout.toByteArray();  
//设置文本框为读取内容  
filecontentEt.setText(new String(content,"UTF-8")); 
in.close();  
bout.close();