struts2 结合extjs实现的一个登录实例

小咪咪 2024-02-17 14:42 49阅读 0赞

一、先搭建好struts2，可以通过myeclipse快速搭建。

二、再导入extjs所需的库文件。

三、写一个实体类User

package com.ext.model;
    
    public class User {
    private Integer id;
    private String username;
    private String password;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    }

四、写LoginAction

package com.ext.action;
    
    import com.ext.model.User;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class LoginAction extends ActionSupport    {
    private boolean success;
    private String message;
    private User user;
    
    @Override
        public String execute() throws Exception {
            // TODO Auto-generated method stub
            if(user.getUsername().equals("admin")&&user.getPassword().equals("admin")){
                this.success= true;
                //this.message="你的账号是："+user.getUsername()+"密码是："+user.getPassword();
            }else{
                this.success=false;
                this.message="对不起，未授权的用户不能登录改系统";
            }
            return SUCCESS;
        }
    
    public boolean isSuccess() {
        return success;
    }
    
    public void setSuccess(boolean success) {
        this.success = success;
    }
    
    public String getMessage() {
        return message;
    }
    
    public void setMessage(String message) {
        this.message = message;
    }
    
    public User getUser() {
        return user;
    }
    
    public void setUser(User user) {
        this.user = user;
    }
    
    }

五、struts.xml如下所示：

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
    <struts>
    <package name="extjs" extends="json-default" namespace="/">
    <action name="Login" class="com.ext.action.LoginAction">
    <result type="json"></result>
    </action>
    </package>
    </struts>

六、login.jsp

<%@ 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>
       <link rel="stylesheet" type="text/css" href="ext3/resources/css/ext-all.css"/>
        <script type="text/javascript" src="ext3/adapter/ext/ext-base.js"></script>
        <script type="text/javascript" src="ext3/ext-all.js"></script>
        <script type="text/javascript" src="ext3/ext-lang-zh_CN.js"></script>
        <script type="text/javascript" src="login.js"></script>
    </head>
    <body>
    </body>
    </html>七、login.js

Ext.onReady(function(){
    Ext.QuickTips.init();
    Ext.form.Field.prototype.msgTarget="side";
    
    var form1=new Ext.FormPanel({
        labelWidth:40,
        baseCls:'x-plain',
        defaults:{width:180},
        items:[{
            xtype:'textfield',
            fieldLabel:"用户名",
            id:"txtName",
            name:'user.username',
            allowBlank:false,
            blankText:"用户名不能为空!"
            },{
            xtype:'textfield',
            fieldLabel:"密码",
            allowBlank:false,
            blankText:"密码不能为空!",
            name:'user.password',
            inputType:'password'
            }],
        buttons:[{
            text:"提交",
            type:'submit',
            handler:function(){
                if(form1.getForm().isValid()) {
                Ext.MessageBox.show({
                    title:'请等待',
                    msg:'正在加载',
                    progressText:'',
                    width:300,
                    progress:true,
                    closable:'false',
                    animEl:'loding'
                });    
                var f = function(v){
                    return function(){
                        var i=v/11;
                        Ext.MessageBox.updateProgress(i,'');
                    }
                }
                for(var i=1;i<33;i++){
                    setTimeout(f(i),i*1500);
                }
                //提交到服务器操作
                form1.form.doAction('submit',{
                url:'Login.action',
                method:'post',
                success:function(form,action){
                    document.location="index.jsp";
                    Ext.Msg.alert("登录成功！",action.result.message);
                },
                failure:function(form,action){
                    Ext.Msg.alert("登录失败！",action.result.message);
                }
                });
            }
            }},
                {
            text:"重置",
            handler:function() {
        form1.getForm().reset();
    }
    }]
    });
    
        var window = new Ext.Window({
            title :"登录窗口",
            layout:'fit',
            width:290,
            height:250,
            plain:true,
            bodyStyle:'padding:10px',
            maximizable:false,
            closeActon:'close',
            closable:false,
            collapsible:true,
            buttonAlign:'center',
            items:form1
        });
        window.show();
    
    });

八、登录成功的index页面就不写了。 用extjs实现页面间的跳转开始学有点麻烦，注意红色部分。