Struts2.3.34+Hibernate 4.x+Spring4.x 整合二部曲之下部曲

1 导入jar包

• 本文最后会给出项目的地址，各位无须看急。

2 配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <!--
        Spring的监听器
    -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:applicationContext.xml</param-value>
    </context-param>

    <filter>
        <filter-name>OpenSessionInViewFilter</filter-name>
        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>OpenSessionInViewFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--
        Struts2的核心过滤器
    -->
    <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>

• 其中，Struts2的核心过滤器不必多说。
• Spring的监听器是ServletContext的监听器，当项目启动的时候，ContextLoaderListener会将applicationContext.xml放入到ServletContext对象的域属性中。
• 因为ServletContext对象，所以需要在web.xml中配置<context-param>节点。

3 Action.java

• 示例：ClassesAction.java

package com.xuweiwei.action;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;
import com.xuweiwei.domain.Classes;
import com.xuweiwei.service.ClassesService;
import org.apache.struts2.ServletActionContext;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import javax.annotation.Resource;
import java.util.List;

@Controller("classAction")
@Scope("prototype") //此注解表明是单例还是多例
public class ClassesAction extends ActionSupport {

    @Resource(name=ClassesService.SERVICE_NAME)
    private ClassesService classesService;

    /**
     * 获取所有的班级信息
     * @return
     */
    public String classesInfos(){
        List<Classes> classesList = classesService.classesInfos();
        ServletActionContext.getRequest().setAttribute("classesList",classesList);
        return Action.SUCCESS;
    }

}

• 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">

<!--suppress ALL -->
<struts>

    <constant name="struts.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />

    <package name="default" namespace="/" extends="struts-default">
        <action name="classes" class="classAction" method="classesInfos">
            <result name="success">/classes_list.jsp</result>
        </action>
    </package>

</struts>

4 项目地址

• https://github.com/xuweiweiwoaini/sshDemo