struts2 注解的使用

r囧r小猫 2022-08-25 14:58 143阅读 0赞

（1）导入struts2 相关的jar 我是用的maven建的项目，所以我在pom.xml中配置struts2的jar的

<dependency>  
<groupId>org.apache.struts</groupId>  
<artifactId>struts2-core</artifactId>  
<version>2.3.4.1</version>  
</dependency>  
<dependency>  
<groupId>org.apache.struts</groupId>  
<artifactId>struts2-spring-plugin</artifactId>      (这个jar就是struts2实现注解的jar)  
<version>2.3.4.1</version>  
</dependency>  
<dependency>  
<groupId>org.apache.struts</groupId>  
<artifactId>struts2-convention-plugin</artifactId>  
<version>2.3.4.1</version>  
</dependency>

（2）编写struts2的配置文件struts.xml    放在classpath下

<?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>  
</struts>

（3）在web.xml中配置struts2

<filter>  
<filter-name>openSessionInViewFilter</filter-name>  
<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>  
<init-param>  
<param-name>singleSession</param-name>  
<param-value>true</param-value>  
</init-param>  
</filter>

<filter>  
<filter-name>struts2</filter-name>  
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  
</filter>  
<filter-mapping>  
<filter-name>openSessionInViewFilter</filter-name>  
<url-pattern>/\*</url-pattern>  
</filter-mapping>  
<filter-mapping>  
<filter-name>struts2</filter-name>  
<url-pattern>/\*</url-pattern>  
</filter-mapping>

（4）写一个userAction

package com.vrv.action;  
  
  
import org.apache.log4j.Logger;  
import org.apache.struts2.convention.annotation.Action;  
import org.apache.struts2.convention.annotation.Namespace;  
import org.apache.struts2.convention.annotation.ParentPackage;  
  
  
  
@ParentPackage("basePackage")  
@Namespace("/")  
@Action(value="userAction")  
public class UserAction \{  
private static final Logger logger =Logger.getLogger(UserAction.class);  
public void test()\{  
logger.info("sss");  
\}  
\}

@ParentPackage("basePackage")  
@Namespace("/")  
@Action(value="userAction")

就相当于

<package name="basepack" extends="struts-default">  
<action name="userAction" class="com.vrv.action.UserAction" method="test"> -->  
                   <result name="success">index.jsp</result>   
</action>   
</package>