本文在开发第一个maven示例的基础上进行扩展。
第一个maven示例目录结构如下:
扩展后目录为:
打开pom.xml
在WEB-INF文件夹下新建web.xml:
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
在src\main\resources文件夹下新建struts.xml
<?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> <constant name="struts.devMode" value="true" /> <package name="base" extends="struts-default"> <action name="login" class="base.web.action.login.LoginAction" method="login"> <result name="success">WEB-INF/success.jsp</result> <result name="error">WEB-INF/error.jsp</result> </action> </package> </struts>
在src\main\java文件夹下新建LoginAction类
package base.web.action.login; public class LoginAction { private String username; private String password; public String login() { if (username.equalsIgnoreCase("111") && password.equalsIgnoreCase("222")) { return "success"; } return "error"; } 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; } }
修改index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>登录</title> </head> <body> <h1>登 录</h1> <p>帐号: 111, 密码:222 </p> <form action="login"> 帐号: <input type="text" name="username"/><br/> 密码: <input type="password" name="password"/><br/> <input type="submit" value="提交"/> </form> </body> </html>
在WEB-INF文件夹下添加success.jsp和error.jsp
success.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags"%> <html> <head> <title>登录</title> </head> <body> 登录成功!!! </body> </html>
error.jsp:
<%@ page contentType="text/html; charset=UTF-8"%> <%@ taglib prefix="s" uri="/struts-tags"%> <html> <head> <title>登录</title> </head> <body> 登录失败!!! </body> </html>
将项目部署至tomcat,然后浏览器访问:http://localhost:8080/mavenDemo,出现以下页面:
当输入账号:111,密码:111时,出现以下页面:
当输入账号:111,密码:222时,出现以下页面:
时间: 2024-10-14 18:00:23