通过Servlet创建服务器端JSON数据
服务端提供JSON数据接口:http://localhost:8080/JSONInterface/servlet/jsservlet
首先要导入项目所需要的jar包。
package com.shuai.JsonManager; 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 net.sf.json.JSONObject; import org.json.JSONObject; public class jsservlet extends HttpServlet { /** * Constructor of the object. */ public jsservlet() { super(); } /** * Destruction of the servlet. <br> */ public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } /** * The doGet method of the servlet. <br> * * This method is called when a form has its tag value method equals to get. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } /** * The doPost method of the servlet. <br> * * This method is called when a form has its tag value method equals to post. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ @SuppressWarnings({ "rawtypes", "unchecked" }) public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); response.setCharacterEncoding("UTF-8"); //解决中文乱码问题 PrintWriter out = response.getWriter(); Map map = new HashMap(); map.put("name", "Dana、Li"); map.put("age", new Integer(22)); map.put("Provinces", new String("广东省")); map.put("city", new String("珠海市")); map.put("Master", new String("C、C++、Linux、Java")); JSONObject json =new JSONObject(map); //out.write(json.toString()); out.println(json); out.flush(); out.close(); } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occurs */ public void init() throws ServletException { // Put your code here } }在Tomcat服务器上部署项目,然后运行:
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