Spring4学习（七）Spring整合Struts2,容器管理Action

最新推荐文章于 2022-03-06 12:10:08 发布

原创最新推荐文章于 2022-03-06 12:10:08 发布 · 242 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#Spring #Sturts2 #SSH

Spring4学习专栏收录该内容

8 篇文章

订阅专栏

本文介绍如何在SSH框架中使用Struts2与Spring进行整合。主要步骤包括安装Struts2-Spring插件、配置Struts.xml及web.xml文件、定义Action类并将其托管给Spring容器管理。此外还详细展示了配置示例代码。

搭建SSH框架，Struts2将Action对象托管给Spring容器来管理，配置文件目录概览

第一步安装插件，将Struts2-Spring-plugin.jar添加到项目的引用路径下。

第二步配置Struts.xml配置文件

<?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>
	<constant name="struts.action.extension" value="do,shtml" />
	<constant name="struts.enable.DynamicMethodInvocation" value="false" />
	<constant name="struts.i18n.encoding" value="UTF-8" />
	<!-- <constant name="struts.ui.theme" value="simple" /> -->
	<constant name="struts.devMode" value="false"/>    
	<constant name="struts.multipart.maxSize" value="2024258888" />
	<constant name="struts.multipart.saveDir" value="/tmp" />
	<!-- 通过spring来管理Action  -->
	<constant name="struts.objectFactory" value="spring" />	
	<!-- 引入其他文件-->
	<include file="conf/struts/struts_*.xml"/>
</struts>

第三步配置web.xml文件

<?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">
	
	<!-- 配置C标签 -->
	<jsp-config>
	    <taglib>
	        <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
	        <taglib-location>/WEB-INF/c.tld</taglib-location>
	    </taglib>
  	</jsp-config>
  <!--  tomcat6 的配置 <taglib>
        <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
        <taglib-location>/WEB-INF/c.tld</taglib-location>
    </taglib> --> 	
  
  <!-- 配置struts2的过滤器 -->
	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
		<init-param>  
            <param-name>config</param-name>  
            <param-value>  
               struts-default.xml,struts-plugin.xml,conf/struts/struts.xml
            </param-value>  
        </init-param> 
	</filter>
	<filter-mapping>
	    <filter-name>struts2</filter-name>
	    <url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 初始化Spring容器 ApplicationContext  -->
	<context-param>
	   <param-name>contextConfigLocation</param-name>
	   <param-value>classpath*:conf/**/app_*.xml</param-value>
	</context-param>
	<listener>
	    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
</web-app>

第四步配置创建Action类添加到Struts2配置Action

//交给Spring管理
@SuppressWarnings("serial")
@Controller
@Scope("prototype")
public class ContactsAction extends ActionSupport {

	private InputStream inputStream;

	public InputStream getInputStream() {
		return inputStream;
	}

	private String location;

	public String getLocation() {
		return location;
	}

	public String listContacts() throws IOException {
		// HttpServletRequest request = ServletActionContext.getRequest();
		Map<String, String> map = new HashMap<String, String>();
		map.put("flag", "success");
		String retVal = GsonUtil.getInstance().convertToJson(map);
		inputStream = new ByteArrayInputStream(retVal.getBytes("UTF-8"));
		return SUCCESS;
	}
}

配置Action

<?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="contacts" extends="struts-default" namespace="/contacts">
    <action name="list" method="listContacts" class="org.lian.action.ContactsAction" >
        <result type="stream">
	        <param name="contentType">text/html</param>
	        <param name="inputName">inputStream</param>
    	</result>
    </action>
  </package> 
</struts>

页面访问路径

<a href="${ctx}/contacts/list.do">测试Action</a>