使用Maven搭建Struts2.3.34项目

男娘i 2022-06-05 11:19 107阅读 0赞

1 使用Myeclipse2017创建Maven项目

![这里写图片描述][SouthEast]

![这里写图片描述][SouthEast 1]

![这里写图片描述][SouthEast 2]

2 设置pom.xml

<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.sl</groupId>
        <artifactId>struts2</artifactId>
        <packaging>war</packaging>
        <version>0.0.1-SNAPSHOT</version>
        <name>struts2</name>
        <url>http://maven.apache.org</url>
        <dependencies>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
    
            
            <dependency>
                <groupId>org.apache.struts</groupId>
                <artifactId>struts2-core</artifactId>
                <version>2.3.34</version>
            </dependency>
        </dependencies>
        <build>
            <finalName>struts2</finalName>
        </build>
    </project>

3 struts2下载包  
[http://mirrors.tuna.tsinghua.edu.cn/apache/struts/2.3.34/struts-2.3.34-all.zip][http_mirrors.tuna.tsinghua.edu.cn_apache_struts_2.3.34_struts-2.3.34-all.zip]

4 设置web.xml  
将struts下载包中示例  
struts-2.3.34\\apps\\struts2-blank\\WEB-INF\\web.xml  
复制到自己的工程目录  
\\src\\main\\webapp\\WEB-INF\\web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    
        <display-name>Struts Blank</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>
    
        <welcome-file-list>
            <welcome-file>index.html</welcome-file>
        </welcome-file-list>
    
        
        <security-constraint>
            <display-name>No direct JSP access</display-name>
            <web-resource-collection>
                <web-resource-name>No-JSP</web-resource-name>
                <url-pattern>*.jsp</url-pattern>
            </web-resource-collection>
            <auth-constraint>
                <role-name>no-users</role-name>
            </auth-constraint>
        </security-constraint>
    
        <security-role>
            <description>Don't assign users to this role</description>
            <role-name>no-users</role-name>
        </security-role>
    
    </web-app>

5 设置struts.xml  
将struts下载包中示例  
struts-2.3.34\\apps\\struts2-blank\\WEB-INF\\src\\java\\struts.xml  
复制到自己的工程目录  
\\src\\main\\resources\\struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">
    
    <struts>
    
        <constant name="struts.enable.DynamicMethodInvocation" value="false" />
        <constant name="struts.devMode" value="true" />
    
        <package name="default" namespace="/" extends="struts-default">
    
            <default-action-ref name="index" />
    
            <global-results>
                <result name="error">/WEB-INF/jsp/error.jsp</result>
            </global-results>
    
            <global-exception-mappings>
                <exception-mapping exception="java.lang.Exception" result="error"/>
            </global-exception-mappings>
    
            <action name="index">
                <result type="redirectAction">
                    <param name="actionName">HelloWorld</param>
                    <param name="namespace">/example</param>
                </result>
            </action>
        </package>
    
        <include file="example.xml"/>
    
        
    
    </struts>

PS：也可参照struts2-core-2.3.34.jar中的struts-default.xml  
![这里写图片描述][SouthEast 3]

6 编写测试Action  
创建src\\main\\java\\com\\sl\\action\\HelloAction.java

package com.sl.action;
    
    public class HelloAction {
    
        public String execute() {
            System.out.println("HelloAction.execute()");
            return "success";
        }
    }

7 修改struts.xml，添加对应action配置信息

<action name="hello" class="com.sl.action.HelloAction">
        
        <result name="success">/index.jsp</result>
    </action>

8 编译工程  
![这里写图片描述][SouthEast 4]

9 部署tomcat服务器  
![这里写图片描述][SouthEast 5]

10 测试访问  
[http://localhost:8080/struts2/hello][http_localhost_8080_struts2_hello]

![这里写图片描述][SouthEast 6]

其他  
1 工程目录  
![这里写图片描述][SouthEast 7]

2 设置JRE System Library为1.8  
![这里写图片描述][SouthEast 8]

![这里写图片描述][SouthEast 9]

![这里写图片描述][SouthEast 10]

![这里写图片描述][SouthEast 11]

3 解决JSP页面报错  
未导入servlet-api时，JSP页面会报错  
struts2 The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path

修改pom.xml，添加javax.servlet-api依赖

<dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.0</version>
        <scope>provided</scope>
    </dependency>

[SouthEast]: /images/20220605/43640e3dff594f7b9160b9ec7fbd262a.png
[SouthEast 1]: /images/20220605/58a643a419654d2ea94a0895c602456e.png
[SouthEast 2]: /images/20220605/aa4a62aef97b4187b6a3def7b6230b5f.png
[http_mirrors.tuna.tsinghua.edu.cn_apache_struts_2.3.34_struts-2.3.34-all.zip]: http://mirrors.tuna.tsinghua.edu.cn/apache/struts/2.3.34/struts-2.3.34-all.zip
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[SouthEast 5]: /images/20220605/b8e792f0749e4195b8be3c26edf4fd54.png
[http_localhost_8080_struts2_hello]: http://localhost:8080/struts2/hello
[SouthEast 6]: /images/20220605/e37b8d724e084866a9374264c88af30e.png
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[SouthEast 11]: /images/20220605/31cda50638b0425691c7ac59f4b588a8.png