登录实例

最新推荐文章于 2021-04-26 13:05:29 发布

原创最新推荐文章于 2021-04-26 13:05:29 发布 · 198 阅读

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#EXT #Struts #JavaScript #CSS #Apache #ViewUI

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<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
            request.setAttribute("base", request.getContextPath());
%>

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>登录界面</title>
        <link rel="stylesheet" type="text/css" href="${base}/ext/resources/css/ext-all.css" />

        <script type="text/javascript" src="${base}/ext/ext-base.js"></script>
        <script type="text/javascript" src="${base}/ext/ext-all.js"></script>
        <script type="text/javascript" src="${base}/ext/ext-lang-zh_CN.js"></script><!--中文映射-->

        <script type="text/javascript">

            function Login(){
                //登录面板对象
                var loginPanel=new Ext.form.FormPanel({
                    id:"loginPanel",labelPad:0,labelWidth:45,frame:true,
                    items:[
                        {xtype:"field",id:"userName",fieldLabel:"用户名"},
                        {xtype:"field",id:"password",fieldLabel:"密&nbsp;&nbsp;码"}
                    ]
                });
                var loginWindow;
                if(!loginWindow){
                    loginWindow=new Ext.Window({
                        id:"loginWindow",
                        title:"登录窗口",
                        width:210,
                        height:127,
                        resizable:false,//是否允许重新设置大小
                        closable:false,//是否允许关闭
                        items:
                            [
                            loginPanel
                        ],
                        buttons:
                            [
                            {xtype:"button",text:"确定",handler:validatorData},
                            {xtype:"button",text:"取消",handler:function(){
                                    loginWindow.hide();//隐藏窗体
                                }}
                        ]
                    });
                }
                loginWindow.show();
                document.body.onkeydown=function(){
                    loginWindow.show();
                };
                //连接数据库
                function validatorData(){
                    var userName=Ext.getCmp("userName").getValue();//根据id获取对象的值
                    var password=Ext.getCmp("password").getValue();
                    
                    if(Ext.util.Format.trim(userName)=="" || Ext.util.Format.trim(password)==""){
                        Ext.Msg.alert("警告","请正确输入数据，用户名和密码都不能为空!");
                    }
                    Ext.Ajax.request({
                        url:"login.action",//请求地址
                        params:{ParamUserName:userName,ParamPassword:password},//发送的参数
                        success:function(response,option){
                          
                            var obj=Ext.decode(response.responseText);//将返回json字符串信息转为对象
                            if(obj.success==true)//判断返回的对象的属性是否为true
                            {
                                Ext.Msg.alert("好消息","登录成功");
                                //清除输入框
                                Ext.getCmp("userName").setValue("");
                                Ext.getCmp("password").setValue("");
                                loginWindow.hide();
                            }
                            else{
                                Ext.Msg.alert("坏消息","坏消息：你登陆失败了！");

                            }
                        },
                        failure:function(){
                            Ext.Msg.alert("坏消息","坏消息：你登陆出现异常了！");

                        }
                    })
                }
                //显示登录窗口
                var btnShow=new Ext.Button({
                    renderTo:"btn",text:"显示登录窗口",handler:function(){
                        loginWindow.show();
                    }
                })

            }
            Ext.onReady(Login) ;//参数为定义的函数,onReady是程序的入口
        </script>
    </head>
    <body>
        <div id="btn" style=" text-align: center;padding-top: 300px; vertical-align: middle;">

        </div>
    </body>
</html>

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.cn.controler;

import com.opensymphony.xwork2.ActionSupport;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;

/**
 *
 * @author Administrator
 */
public class LoginAction extends ActionSupport {

    @Override
    public String execute() throws Exception {
        HttpServletRequest request = ServletActionContext.getRequest();
        HttpServletResponse response = ServletActionContext.getResponse();

        String userName = request.getParameter("ParamUserName");
        String password = request.getParameter("ParamPassword");
      
        //判断不为空
        if ((!("").equals(userName) || userName != "") && (!("").equals(password) || password != "")) {
            if ("abc".equals(userName) && "abc".equals(password)) {
                PrintWriter out = response.getWriter();
                out.write("{success:true}");
            } else {
                PrintWriter out = response.getWriter();
                out.write("{success:false}");
            }
        }
        else{
                 PrintWriter out = response.getWriter();
                out.write("{success:false}");
        }

        return null;
    }
}

<?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>

    <!--<constant name="struts.action.extension" value="do" />--><!--将后缀改为.do的方式请求-->
    <constant name="struts.devMode" value="true" />
    <constant name="struts.enable.DynamicMethodInvocation" value="false" />

    <!-- <include file="mailreader-default.xml"/>
    <include file="mailreader-support.xml"/>-->
    <package   name="struts2" namespace="/"   extends="struts-default">
        <action name="hello"  class="com.cn.controler.HelloWorldAction"  method="execute">
            <result name="success">/hello.jsp</result>
        </action>

        <action name="login" class="com.cn.controler.LoginAction"></action>
    </package>

</struts>