接收http发送的报文，并且打印处理

1.首先建立一个servlet：

2.代码如下：

@WebServlet("/push")

public class Test extends HttpServlet implements Servlet {

    private static final long serialVersionUID = 1L;

    public Test() {

        // TODO Auto-generated constructor stub

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws

 ServletException, IOException {

        System.out.println("doGet");

    }

     protected void doPost(HttpServletRequest request, HttpServletResponse response)

               throws ServletException, IOException {

              try {

               int len = request.getContentLength();         

                     //获取HTTP请求的输入流

                     InputStream is = request.getInputStream();

                     //已HTTP请求输入流建立一个BufferedReader对象

                     BufferedReader br = new BufferedReader(

                    new InputStreamReader(is,"UTF-8"));

                     //读取HTTP请求内容

                     String buffer = null;

                     StringBuffer sb = new StringBuffer();

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

                     //在页面中显示读取到的请求参数

                         sb.append(buffer+"\n");

                     }

                    System.out.println("接收post发送原始数据:\n"+sb.toString().trim());

                    PrintWriter out = response.getWriter();

                    StringBuffer stringBuffer = new StringBuffer("OK");

                    out.write(stringBuffer.toString());

                    out.flush();

                    out.close();

              } catch (Exception e) {

              System.out.println("error"+e);

        }

    }