json之总结

来源：互联网发布：炉石diy软件编辑：程序博客网时间：2024/06/07 13:19

后台：import java.io.IOException;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;public class JsonServlet extends HttpServlet {protected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException { doPost(req, resp);}protected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {String name = req.getParameter("name");String age = req.getParameter("age");//Iterator iter = JSONObject.fromObject(usr).entrySet().iterator();//while(iter.hasNext()){//Map.Entry entry = (Entry) iter.next();//System.out.println(entry.getKey());//System.out.println(entry.getValue());//}System.out.println("doPost");//User user = new User();//user.setAge(20);//user.setName("zhansan");//user.setSex("男");//List<User> list = new ArrayList<User>();//list.add(user);//list.add(user);//list.add(user);//list.add(user);//System.out.println(list.size());Map<String, String> hashMap = new HashMap<String, String>();hashMap.put("item1", "xiaoniu");hashMap.put("item2", "lisi");hashMap.put("item3", "zhansan");hashMap.put("item4", "wangwu");JSONObject.fromObject(hashMap).write(resp.getWriter());//JSONObject.fromObject(list).write(resp.getWriter()); //JSONArray.fromObject(list).write(resp.getWriter());}}

前台<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><mce:script type="text/javascript" src="./js/jquery.js" mce_src="js/jquery.js"></mce:script><mce:script type="text/javascript"></mce:script><mce:script type="text/javascript"></mce:script></head><body><table id="table1" border="1"> <tr> <td> <input type="text" id="userName"/> </td> </tr> <tr><th>Name</th><th>Age</th></tr></table></body></html>