ajax从后台读json数据,jquery在页面简析

import java.io.IOException; import java.io.PrintWriter; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.JSONException; import org.json.JSONObject; import org.json.JSONString; import org.json.JSONStringer; public class AjaxServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html; charset=gb2312"); PrintWriter out = response.getWriter(); JSONObject jsonDemo = new jsonTest().jsonDemo(); out.print(jsonDemo); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }