Simple Ajax call implemented by jQuery + json

Userservlet. java code packagecom. iss. servlet; importorg. json. JSONException; importorg. json. JSONObject; importcom. iss. pojo. User; importcom. iss. util. JSONUtil; publicclassU

 

Userservlet. java code

 

 

Package com. iss. servlet;

Import org. json. JSONException;

Import org. json. JSONObject;

Import com. iss. pojo. User;

Import com. iss. util. JSONUtil;

Public class UserServlet extends HttpServlet {

Public void doGet (HttpServletRequest request, HttpServletResponse response)

Throws ServletException, IOException {

DoPost (request, response );

}

Public void doPost (HttpServletRequest request, HttpServletResponse response)

Throws ServletException, IOException {

Response. setContentType ("text/html; charset = UTF-8 ");

// Add objects to a list

List UserList = new ArrayList ();

User user1 = new User ("Zhang San", "male", "18 ");

User user2 = new User ("Li Si", "male", "19 ");

User user3 = new User ("Wang Wu", "male", "20 ");

UserList. add (user1 );

UserList. add (user2 );

UserList. add (user3 );

PrintWriter out = response. getWriter ();

String str = null;

Try {

// Return the list to the interface if the Account Password Matches

If (request. getParameter ("userName"). equals ("jquery ")

& Request. getParameter ("password"). equals ("ajax ")){

Str = JSONObject. quote (JSONUtil. toJSONString (userList ));

}

Out. print (str );

} Catch (JSONException e ){

// TODO Auto-generated catch block

E. printStackTrace ();

}

System. out. println ("str" + str );

Out. flush ();

Out. close ();

}

}

 

 

 

 

 

Html code

 

 

Account jquery password ajax

Queried data