把流对象转换为字符串对象的一个方法

/*
  * 把流对象转换为字符串对象
  */
 private static String convertStreamToString(InputStream is) {

  BufferedReader reader = new BufferedReader(new InputStreamReader(is));
//  注意这里为什么要用StringBuilder:
//      1.单线程操作字符串缓冲区 下操作大量数据 = StringBuilder
//            2.多线程操作字符串缓冲区 下操作大量数据 = StringBuffer
  StringBuilder sb = new StringBuilder();
  String line = null;
  try {
   while ((line = reader.readLine()) != null) {
    sb.append(line + "\n");
   }
  } catch (IOException e) {
   e.printStackTrace();
  } finally {
   try {
    is.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  return sb.toString();
 }

转载于:https://www.cnblogs.com/wlfhotte/archive/2011/11/30/2269377.html