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struts2+jquery 实现ajax登陆

2024-07-11 22:26:34   221人阅读

一、新建一个web项目：test,配置好struts2的环境(详细配置见：http://www.cnblogs.com/wuweidu/p/3841297.html)

      导入Jquery的js文件到项目

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登陆界面  success.jsp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="http://www.mamicode.com/"><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="http://www.mamicode.com/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(valuehttp://www.mamicode.com/=="登陆成功"){            location.href="./success.jsp";            }        }    });</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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