Struts2和Spring的整合:将struts2的action对象创建交给了spring惊醒管理
未整合的Struts2的创建
struts.xml配置文件如下:
<?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 name="demo1" extends="struts-default" namespace="/">
<!-- class属性里面不写action的全路径了,因为写了,action对象就创建了两次(一次struts,一次spring)
所以class里面直接写spring配置中的此action相对应的bean的id值
-->
<!--这是原来的未整合的写法
<action name="userAction" class="cn.itcast.action.UserAction"></action> -->
<!-- 正确的写法是 -->
<action name="userAction" class="userAction"></action>
</package>
</struts>
spring的配置文件如下:创建了一个id为userAction的bean
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 配置c3p0连接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 注入属性值 -->
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql///spring_day04"></property>
<property name="user" value="root"></property>
<property name="password" value="root"></property>
</bean>
<bean id="userAction" class="cn.itcast.action.UserAction" scope="prototype"></bean>
</beans>
本来action标签中的class指向的是一个有完整路径的类,而整合之后,class的值指向了spring配置文件中的bean的id。
web.xml配置如下:
<?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>spring_day04_sshdemo1</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:bean1.xml</param-value>
</context-param>
<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>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<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>
同样的配置struts2的过滤器 和spring的监听器,更改spring加载配置文件xml的classpath路径。
action演示类如下
package cn.itcast.action;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport {
@Override
public String execute() throws Exception {
System.out.println("action.............");
return NONE;
}
}