Struts2框架搭建与运行流程的详细具体步骤 +工作原理执行流程。

我就是我 2022-05-28 04:43 195阅读 0赞

**目录结构**

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**具体代码**

**1、web.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
      <display-name>struts_day1</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>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
    </web-app>

**2、HelloAction.java**

package hello;
    
    public class HelloAction {
    
    	public String hello(){
    		
    		System.out.println("hello world");
    		return "success";
    	}
    }

**3、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>
    	<package name="hello" namespace="/hello" extends="struts-default">
    		<action name="HelloAction" class="hello.HelloAction" method="hello">
    			<result name="success">/hello.jsp</result>
    		</action>
    	</package>
    </struts>

**4、hello.jsp**

<h1>hello word!</h1>

**5.访问地址**：localhost:8080/struts2\_day1 /hello /HelloAction

项目名 packagename 类名

**运行流程**

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**核心**

**![Center 2][]**

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[Image 1]: 
[Center]: /images/20220528/8bf64307bbaf4e2c831db963f975a687.png
[Center 1]: /images/20220528/438da33b042d41b9ac7ef8adf37ca1b4.png
[Center 2]: /images/20220528/da66c5c38780454b9f58110a4469ddb8.png