java 读文件，

java 读文件，

publicstaticString openFile(File file) {

     Stringcontent = "";

     try {

       InputStreamReaderi = new InputStreamReader(new FileInputStream(file), ENCODE);

       BufferedReaderbf = newBufferedReader(i);

       Stringtemp = "";

       while ((temp = bf.readLine())!= null){

         content+= temp + "\n";

       }

       bf.close();

       return content;

     }catch(Exception e) {

       e.printStackTrace();

     }

     return content;

  }