struts2+jquery实现ajax登陆实例详解
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2023-11-07 18:33:40
文本仪一个实例讲述了struts2+jquery实现ajax登陆的实现方法,具体步骤如下:
一、新建一个web项目,取名test。配置好struts2的环境,并导入jqu...
文本仪一个实例讲述了struts2+jquery实现ajax登陆的实现方法,具体步骤如下:
一、新建一个web项目,取名test。配置好struts2的环境,并导入jquery的js文件到该项目。
二、在com.action包下,新建一个loginaction.java
loginaction.java的代码如下
package com.action; import org.apache.struts2.convention.annotation.action; import org.apache.struts2.convention.annotation.parentpackage; import org.apache.struts2.convention.annotation.result; import org.apache.struts2.convention.annotation.results; import com.opensymphony.xwork2.actionsupport; @action("login") @parentpackage(value = "json-default") @results({ @result(name = "success", type = "json", params = { "data", "flag" }), }) public class loginaction extends actionsupport { /** * */ private static final long serialversionuid = 1751244794407005783l; private string flag; private string username; private string password; public string execute() { try { if (getusername() == null || getusername().trim().equals("")) { setflag("用户名不能为空"); return success; } else if (getpassword() == null || getpassword().trim().equals("")) { setflag("密码不能为空"); return success; } else if (getusername().trim().equals("admin") && getpassword().equals("admin")) { setflag("登陆成功"); return success; } else { setflag("用户名或密码错误"); return success; } } catch (exception e) { e.printstacktrace(); setflag("登陆异常"); return success; } } public string getflag() { return flag; } public void setflag(string flag) { this.flag = flag; } public string getpassword() { return password; } public void setpassword(string password) { this.password = password; } public string getusername() { return username; } public void setusername(string username) { this.username = username; } }
三、在webroot目录下新建index.jsp和success.jsp
index.jsp为登陆界面,success.jsp为登陆成功后跳转的界面。
index.jsp内容如下:
<%@ page language="java" import="java.util.*" pageencoding="utf-8"%> <% string path = request.getcontextpath(); string basepath = request.getscheme() + "://" + request.getservername() + ":" + request.getserverport() + path + "/"; %> <!doctype html public "-//w3c//dtd html 4.01 transitional//en"> <html> <head> <base href="<%=basepath%>" rel="external nofollow" > <title>my jsp 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <script type="text/javascript" src="./resource/js/jquery.min.js"></script> </head> <script type="text/javascript"> $(document).ready(function() { $(".loginbutton").click(function() { var name = $("#username").val();//获取登陆用户名 var password = $("#password").val(); //获取登陆密码 $.post("login", { username : name, password : password }, callback, "json"); }); function callback(data) { var value=data.flag; if(value=="登陆成功"){ location.href="./success.jsp" rel="external nofollow" ; }else{ alert(value); } }); </script> <body> <input name="username" id="username" type="text" /> <input name="password" id="password" type="password" /> <button class="loginbutton" class="btn btn-inverse">登陆</button> </body> </html>
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