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基于Struts2的用户登录程序

2015-04-28 21:28 441 查看
基本步骤:

1、新建Java工程,File>New>Project>Web>Dynamic Web Project,并将工程命名为:Struts2_Demo

2、导入struts2的重要jar包到WebContent>lib下



3、新建web.xml,右击WEB-INF>New>Other>XML>XML File,并命名为web.xml

更改其内容如下:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>
<display-name>Struts2_Demo</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
</web-app>


4、新建struts.xml,右击Java Resources>src>new>Other>XML>XML File,并命名为struts.xml

5、新建action包,右击Java Resources>src>New>Package,并命名为acion

6、新建LoginAction类,右击action>New>Class,并并名为LoginAction类

并修改其内容如下:

package action;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {
private String username;
private String passward;

public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassward() {
return passward;
}
public void setPassward(String passward) {
this.passward = passward;
}

public String execute(){
if(username.equals("admin") && passward.equals("admin")){
return "success";
}
else{
return "fail";
}
}
}


7、新建login页面,右击WebContent>New>JSP File,并命名为login.jsp

修改其内容如下:

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Welcome To Login</title>
</head>
<body>
<center>
<h1>用户登录</h1>
<s:form action="LoginAction">
<table>
<tr>
<td>用户名:</td>
<td><input type="text" name="username" ></td>
</tr>
<tr>
<td>密码:</td>
<td><input type="text" name="passward"></td>
</tr>
<tr>
<td><input type="submit" value="登录"></td>
<td><input type="reset" value="重置"></td>
</tr>
</table>
</s:form>
</center>
</body>
</html>


8、新建loginsuccess页面,右击WebContent>New>JSP File,并命名为loginsuccess.jsp

修改其内容如下:

<%@ 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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
登录成功
</body>
</html>


9、新建loginfail页面,右击WebContent>New>JSP File,并命名为loginfail.jsp

修改其内容如下:

<%@ 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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
登录失败
</body>
</html>


10、配置struts.xml,修改其内容如下:

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<include file="struts-default.xml"/>
<package name="action" extends="struts-default">
<action name="LoginAction" class="action.LoginAction">
<result name="success">/loginsuccess.jsp</result>
<result name="fail">/loginfail.jsp</result>
</action>
</package>
</struts>


11、右击工程Struts_Demo>Run As>Run on Server运行即可,效果如下



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