public StringBuilder readTxtFile(File file){

     StringBuilder sBuilder = new StringBuilder();

     InputStreamReader isr = null;

     BufferedReader br = null;

     try {

         if (file.isFile() && file.exists()) {

             isr = new InputStreamReader(new FileInputStream(file), "GBK");

             br = new BufferedReader(isr);

             String line = null;

             while ((line = br.readLine()) != null) {

                 System.out.println(line);

                 sBuilder.append(line);

             }

         } else {

             logger.info("文件不存在!");

         }

     } catch (Exception e) {

             logger.info("文件读取错误!");

     } finally {

         // 关闭流

         try {

             if(isr != null) {

                 isr.close();

                 logger.info("isr已经成功关闭!");

             }

             if(br != null){

                 br.close();

                 logger.info("br已经成功关闭!");

             }

         } catch(Exception e) {

             e.printStackTrace();

         }

     }

    return sBuilder;

37 }