Java解析ＵＲＬ传输的数据

String contentType = request.getContentType();   
        System.out.println("========ContentType:" + contentType);    
        InputStream is = request.getInputStream();  
        byte bytes[] = new byte[request.getContentLength()];  
        is.read(bytes);  
        String jsonStr = new String(bytes, request.getCharacterEncoding());  
        //System.out.println("json data：" + jsonStr);  
BufferedReader reader = null;
ServletInputStream inputStream = request.getInputStream();
if(null!=inputStream){
reader = new BufferedReader(new InputStreamReader(inputStream));
}
System.out.println("this method invoked");
System.out.println(reader);
        String line = "";
        StringBuffer inputString = new StringBuffer();
        try {
        while ((line = reader.readLine()) != null) {
        inputString.append(line);
        }
        } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
        }
System.out.println(inputString.toString());