输入流与字符串间的互转

 /*
  * 将一个字符串转化为输入流　
  */
 public static InputStream getStringStream(String sInputString) {

  if (sInputString != null && !sInputString.trim().equals("")) {

   try {

    ByteArrayInputStream tInputStringStream = new ByteArrayInputStream(
      sInputString.getBytes());

    return tInputStringStream;

   } catch (Exception ex) {

    ex.printStackTrace();

   }

  }

  return null;

 }

 /*
  * 将一个输入流转化为字符串　
  */

 public static String getStreamString(InputStream tInputStream) {

  if (tInputStream != null) {

   try {

    BufferedReader tBufferedReader = new BufferedReader(
      new InputStreamReader(tInputStream));

    StringBuffer tStringBuffer = new StringBuffer();

    String sTempOneLine = new String("");

    while ((sTempOneLine = tBufferedReader.readLine()) != null) {

     tStringBuffer.append(sTempOneLine);

    }

    return tStringBuffer.toString();

   } catch (Exception ex) {

    ex.printStackTrace();

   }

  }

  return null;

 }