<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!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> <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-1.4.4.min.js"></script> </head> <body> 姓名：<input type="text" name="name" id="name"/> 密码：<input type="password" name="password" id="password"> <input type="button" id="login" value="登陆"> <script> $("#login").click(function(){ var name=$("#name").val(); var password=$("#password").val(); var message={ 'name':name, 'password':password } var url = "isLogin.action"; $.ajax({ type:'post', url:url, dataType: 'json', data: message, success:function(data){ var obj = $.parseJSON(data); //使用 var state_value = obj.result; alert(state_value); } }) }) </script> </body> </html>
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="default" extends="struts-default" namespace="/"> <action name="findAll" class="LoginAction" method="findAll"> <result name="input">/input.jsp</result> <result name="success">/result.jsp</result> </action> </package> <package name="ajax" extends="json-default" namespace="/"> <action name="isLogin" class="LoginAction" method="isLogin"> <result type="json"> <param name="root">result</param> </result> </action> </package> </struts>
package com.gu.action; import java.io.PrintWriter; import java.util.List; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import org.apache.struts2.ServletActionContext; import org.json.JSONString; import com.gu.model.Usermanager; import com.gu.service.LoginService; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import net.sf.json.JSONArray; import net.sf.json.JSONObject; public class LoginAction extends ActionSupport { public static Logger log=Logger.getLogger(LoginAction.class); private LoginService loginService; public void setLoginService(LoginService loginService) { this.loginService = loginService; } private String name; private String password; private String result; public String getResult() { return result; } public void setResult(String result) { this.result = result; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String isLogin() throws Exception { result=loginService.isLogin(name, password); log.warn(result); //list转成json对象 /* JSONArray jsonArray=null; * jsonArray=JSONArray.fromObject(result); HttpServletResponse response=(HttpServletResponse) ActionContext.getContext().get(ServletActionContext.HTTP_RESPONSE); response.setCharacterEncoding("UTF-8"); response.getWriter().print(jsonArray);*/ HttpServletResponse response=(HttpServletResponse) ActionContext.getContext().get(ServletActionContext.HTTP_RESPONSE); response.setCharacterEncoding("UTF-8"); String str="{"result":""+result+""}"; JSONObject jso=JSONObject.fromObject(str); result=jso.toString(); return super.execute(); } public String findAll(){ List<Usermanager> list=loginService.findAll(); ActionContext.getContext().put("list", list); //log.warn(list.get(0).getUserName()+","+list.get(0).getUserPassword()); return SUCCESS; } }