文件的简单读写操作

 1     public boolean writeFile(String fileName, String content) {
 2         try {
 3             FileOutputStream stream  = openFileOutput(fileName, MODE_PRIVATE);
 4             byte[]           buffers = content.getBytes();
 5 
 6             stream.write(buffers);
 7             stream.flush();//---清空缓存
 8             stream.close();
 9             return true;
10         }
11         catch (Exception ex) {
12             ex.printStackTrace();
13             return false;
14         }
15     }

 1     public String readFile(String fileName) {
 2         String content = "";
 3         try {
 4             FileInputStream stream  = openFileInput(fileName);
 5             int             length  = stream.available();
 6             byte[]          buffers = new byte[length];
 7 
 8             stream.read(buffers);
 9             content = new String(buffers);
10         }
11         catch(Exception ex) {
12             ex.printStackTrace();
13         }
14         return content;
15     }