spring2.5整合struts2.0+JPA
整合的步骤如下:(这里强调一点,网上有说用spring去管理struts的Action,这种方式也可以。我已经试过那种方式了,但是我在这里介绍另外一种:在spring的配置文件里面可以不用去配置某个action的service,即在StudentAction.java中可以引用所有的service,根本就不需用配置哪个action来对应哪个service,这种方式比较灵活)
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1.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>struts2.0spring2.5</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>struts-cleanup</filter-name>
<filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
</filter>
<filter-mapping>
<filter-name>struts-cleanup</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--Spring Context Config loader-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/conf/applicationContext.xml,classpath:applicationContext-*.xml</param-value>
</context-param>
<!-- spirng解决乱码 -->
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
2. applicationContext.xml
<?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: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-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
<!-- PROPERTIES DEFINITIONS -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>/WEB-INF/conf/jdbc.properties</value>
</list>
</property>
</bean>
<!-- DATASOURCE DEFINITION -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="url" value="${jdbc.url}" />
</bean>
<!-- ENTITY MANAGER FACTORY -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml"/>
<property name="persistenceUnitName" value="Test_Persistence"/>
<property name="dataSource" ref="dataSource" />
<property name="loadTimeWeaver">
<bean class="com.ctit.tools.MyLoadTimeWeaver"/>
</property>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.TopLinkJpaVendorAdapter">
<property name="showSql" value="false" />
<property name="generateDdl" value="false" />
</bean>
</property>
</bean>
<!-- TRANSACTION MANAGER -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- ASPECT CONFIGURATION -->
<aop:config>
<aop:pointcut id="monsterBigManager" expression="execution(* com.ctit.service.*.*(..))" />
<aop:advisor pointcut-ref="monsterBigManager" advice-ref="monsterBigAdvice"/>
</aop:config>
<tx:advice id="monsterBigAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="register*" propagation="REQUIRED"/>
<tx:method name="create*" propagation="REQUIRED"/>
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<bean id="studentDao" class="com.ctit.dao.impl.StudentDaoImpl">
<property name="entityManagerFactory" ref="entityManagerFactory"></property>
</bean>
<bean id="studentService" class="com.ctit.service.impl.StudentServiceImpl">
<property name="repository" ref="studentDao"></property>
</bean>
</beans>
3. struts.xml 一定要在src的目录下或者和src平齐的目录下,我的是在conf这个目录下,conf和src是平齐的目录。
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="action" extends="struts-default">
<action name="action_*" class="com.ctit.action.StudentAction" method="{1}">
<result name="list">/studentlist.jsp</result>
<result name="delete">/studentlist.jsp</result>
<result name="success">/success.jsp</result>
<result name="failed">/fail.jsp</result>
<result name="insert">/studentedit.jsp</result>
</action>
<!-- App Action-->
<action name="App" class="com.ctit.action.AppAction">
<result name="appList">/app/apps.jsp</result>
<result name="newApp">/app/app-edit.jsp</result>
<result name="createApp">/app/apps.jsp</result>
<result name="deleteApp">/app/apps.jsp</result>
<result name="editApp">/app/app-edit.jsp</result>
<result name="updateApp">/app/apps.jsp</result>
</action>
</package>
</struts>
上面是它们整合时的总的最主要的配置文件信息,如果那些都按照我的方法配置基本上不会出现问题的。
下面是附属的配置文件信息:
4. persistence.xml 。位置在src目录下建立一个META-INF目录,它下面有persistence.xml和orm.xml配置信息. 这里的Test_Persistence是和applicationContext.xml里面的persistenceUnitName对应的哦。
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="Test_Persistence" transaction-type="RESOURCE_LOCAL">
<provider>oracle.toplink.essentials.PersistenceProvider</provider>
<mapping-file>META-INF/orm.xml</mapping-file>
<class>com.ctit.pojo.Student</class>
</persistence-unit>
</persistence>
5. orm.xml
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
version="1.0">
</entity-mappings>
6. jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.username=root
jdbc.password=root
jdbc.url=jdbc\:mysql\://192.168.1.108\:3306/test
另外还需要说明一点是在applicationContext.xml中还有个配置需要注意:
<property name="loadTimeWeaver">
<bean class="com.ctit.tools.MyLoadTimeWeaver"/>
</property>
这里的MyLoadTimeWeaver类在下面将会涉及到。
以上是所有的配置文件信息了。
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下面说一说类:
action层,service层都可以不用多说的。 在dao层要说明一点的是:
1. StudentDaoImpl.java, 这里一定要先merge下,然后在remove它。
public class StudentDaoImpl extends JpaDaoSupport implements IStudentDao {
public void deleteStudent(Student student) {
Student mergeStudent = this.getJpaTemplate().merge(student);
getJpaTemplate().remove(mergeStudent);
}
}
2. 另外也说明另一点,在pojo包中的Student.java,它是普通的javabean,并没有继承什么类的。就像平常那样写就可以了。
3. 在页面中要用<%@ taglib uri="/struts-tags" prefix="s"%>
这里必须在WEB-INF下面有struts-tags.tld这个文件的哦。
我这里的项目是在WEB-INF下面有个tags目录,它下面就是了。
4. MyLoadTimeWeaver.java
package com.ctit.tools;
import org.springframework.instrument.classloading.SimpleLoadTimeWeaver;
public class MyLoadTimeWeaver extends SimpleLoadTimeWeaver {
@Override
public ClassLoader getInstrumentableClassLoader() {
return super.getInstrumentableClassLoader().getParent();
}
}
至此,上面的也都说完了。保证你可以运行起来的。
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下面说说包的作用和问题:
1. 在pojo中的Student.java中用的标注:
@Entity
@Table(name="student")
这些都靠的是:toplink-essentials.jar 这个包在spring的spring-framework-2.5.6\lib\toplink这个目录下有。
2. 在applicationContext.xml配置文件中有aop:config这个配置信息。
它靠的是aspectjweaver.jar,这个包在spring-framework-2.5.6\lib\aspectj这个目录下。
3. struts2-spring-plugin-2.0.9.jar 这个包一定要加,因为这是整合struts和spring的必须的包。
如果还有什么必须介绍的包我以后在介绍。
4.struts2.0的包
struts2-core-2.0.9.jar xwork-2.0.4.jar(Webwork的核心技术包) commons-logging-1.0.4.jar
freemarker-2.3.8.jar ognl-2.6.11.jar
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