• 用Maven创建第一个web项目Struts2项目


    一.创建一个web项目

    参考前面文章,项目名:maven-struts-demo。

    二.配置pom.xml文件添加struts2依赖

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

      <modelVersion>4.0.0</modelVersion>

      <groupId>com.lei.demo</groupId>

      <artifactId>maven-struts-demo</artifactId>

      <packaging>war</packaging>

      <version>0.0.1-SNAPSHOT</version>

      <name>maven-struts-demo Maven Webapp</name>

      <url>http://maven.apache.org</url>

      <dependencies>

        <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>3.8.1</version>

          <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.apache.struts</groupId>

            <artifactId>struts2-core</artifactId>

            <version>2.3.8</version>

    </dependency>

      </dependencies>

      <build>

        <finalName>maven-struts-demo</finalName>

      </build>

    </project>

    保存后maven会自动下载相应的jar包。

    下载完成后查看jar包,如图

    https://images0.cnblogs.com/blog/201693/201310/17163559-7861b03cf76f4b4486bebb011c8bfcbd.png

    三.新建JSP页面

    1.index.jsp页面,点“去登录界面”后,去struts.xml中找对应的anction中name=user_login_go的路径

    <%@ page 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>

    <body>

        <h2>Struts2-Demo</h2>

        <a href="user_login_go">去登录界面</a>

    </body>

    </html>

    2.login.jsp页面,输入name和password后,去struts.xml中找对应的anction中name=login_go的路径

    <%@ page 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>struts2-Demo-登录界面</title>

    </head>

    <body>

        <p>struts2-Demo-登录界面</p>

        <form action="login_go" method="post">

            name:<input type="text" name="name" />

            password<input type="password" name="password" />

            <input type="submit" value="登录" />

        </form>

    </body>

    </html>

    3.welcome.jsp页面,输入name和password后,去struts.xml中找对应的anction中name=login_go的路径

    <%@ page 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>

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

    <title>Struts2-Demo-欢迎页面</title>

    </head>

    <body>

        Welcome:

        <br>

        <h1>name=<s:property value="name" /></h1>

        <h1>password=<s:property value="password" /></h1>   

        <h1>重新登录</h1>

        <s:form action="login_go" namespace="/" method="post">

            <s:textfield name="name" label="name"></s:textfield> 

            <s:password name="password" label="password"></s:password> 

                 

            <s:submit value="Login"></s:submit>

        </s:form>

    </body>

    </html>

    4.web.xml

    <!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 Web Application</display-name>

        <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>

    5.struts.xml,放在src/main/resources目录下

    <?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>

        <package name="user" namespace="/"  extends="struts-default">

            <action name="user_login_go" class="com.sulei.action.UserLoginAction" method="user_login">

                <result name="success">/login.jsp</result>

            </action>

            <action name="login_go" class="com.sulei.action.UserLoginAction" method="login">

                <result name="success">/welcome.jsp</result>

            </action>

        </package>

    </struts>

    目录结构:

    https://images0.cnblogs.com/blog/201693/201310/18150805-5a4b0d86ac62491099b65004eaea1685.png

    运行效果如下

    https://images0.cnblogs.com/blog/201693/201310/18145920-f94b128e77184c0a9ee144246ff87b7b.png

    https://images0.cnblogs.com/blog/201693/201310/18145928-297fd7135e9e4b929676e159d0af267d.png

    https://images0.cnblogs.com/blog/201693/201310/18145928-297fd7135e9e4b929676e159d0af267d.png

    https://images0.cnblogs.com/blog/201693/201310/18145938-9439884d37b6445c97e2e7f7f27328ba.png

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  • 原文地址:https://www.cnblogs.com/yachao1120/p/10467766.html
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