Struts2_Spring_Hibernate整合及测试_3(标准)

Struts2与Spring与Hibernate标准整合

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd"> 
<!--配置Spring的用于初始化容器对象的监听器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- 配置Struts2的核心的过虑器 -->
<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>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

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">

<struts>
<!-- 配置为开发模 -->
<constant name="struts.devMode" value="true" />
<!-- 把扩展名配置为action -->
<constant name="struts.action.extension" value="action" />
<!-- 把主题配置为simple(默认主题,该是什么就是什么) -->
<constant name="struts.ui.theme" value="simple" />

<package name="default" namespace="/" extends="struts-default">

<!-- 配置测试用的Action未与Spring整合,class属性写类的全名 -->
<!-- 当Struts2与Spring整合后,class属性可以写bean名称 -->
<action name="test" class="testAction">
<result name="success">/test.jsp</result>
</action>
</package>
</struts>

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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!-- 自动扫描与装配bean -->
<context:component-scan base-package="cn.itcast.oa" />

<!-- 导入外部的properties文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />

<!-- 配置SessionFactory对象 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 指定Hibernate的配置文件位置 -->
<property name="configLocation" value="classpath:hibernate.cfg.xml" />
<!-- 配置c3p0数据库连接池 -->
<property name="dataSource">
<bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 数据库连接信息 -->
<property name="jdbcUrl" value="${jdbc.jdbcUrl}" />
<property name="driverClass" value="${jdbc.driverClass}" />
<property name="user" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
<!-- 其它配置 -->
<!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize" value="3" />
<!--连接池中保留的最小连接数。Default: 3 -->
<property name="minPoolSize" value="3" />
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize" value="5" />
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement" value="3" />
<!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default:
0 -->
<property name="maxStatements" value="8" />
<!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default:
0 -->
<property name="maxStatementsPerConnection" value="5" />
<!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime" value="1800" />
</bean>
</property>
</bean>

<!-- 配置声明式事务管理(采用注解的方式) -->
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="txManager" />

</beans>

hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
<session-factory name="foo">
<!-- 1,数数据库连接信息(5项) -->
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<!-- <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/itcastoa</property>
<property name="hibernate.connection.username">root</property> <property
name="hibernate.connection.password">root</property> -->

<!-- 2,其它配置 -->
<!-- 显示要SQL语句 -->
<property name="show_sql">true</property>
<!-- 自动构建表结构 -->
<property name="hbm2ddl.auto">update</property>

<!-- 3,导入映射文件 -->
<mapping resource="cn/itcast/oa/domain/User.hbm.xml" />
</session-factory>
</hibernate-configuration>

jdbc.properties

jdbc.jdbcUrl		= jdbc\:mysql\://localhost\:3306/itcastoa
jdbc.driverClass	= com.mysql.jdbc.Driver
jdbc.user			= root
jdbc.password		= root

TestAction.java

package cn.itcast.oa.test;

import javax.annotation.Resource;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionSupport;

@Controller("testAction")
@Scope("prototype")
public class TestAction extends ActionSupport {
@Resource
private TestService testService;

@Override
public String execute() throws Exception {
System.out.println("---> TestAction.execute()");
testService.saveTwoUsers();
return "success";
}

}

SpringTest.java

package cn.itcast.oa.test;

import org.hibernate.SessionFactory;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringTest {
private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");

@Test
public void testBean() throws Exception {
TestAction testAction = (TestAction) ac.getBean("testAction");
System.out.println(testAction);
}

// 测试SessionFactory
@Test
public void testSessionFactory() throws Exception {
SessionFactory sessionFactory = (SessionFactory) ac.getBean("sessionFactory");
System.out.println(sessionFactory);
}

// 测试事务
@Test
public void testTransaction() throws Exception {
TestService ts = (TestService) ac.getBean("testService");
ts.saveTwoUsers();
}
}

User.java

package cn.itcast.oa.domain;

public class User {
private Long id;
private String name;

public Long getId() {
return id;
}

public void setId(Long id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
}

TestService.java

package cn.itcast.oa.test;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import cn.itcast.oa.domain.User;

@Service("testService")
public class TestService {
@Resource
private SessionFactory sessionFactory;

public SessionFactory getSessionFactory() {
return sessionFactory;
}

public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

// 开事务
@Transactional
public void saveTwoUsers() {
Session session = sessionFactory.getCurrentSession();

session.save(new User());
// int a = 1 / 0;// 这行会抛异常
session.save(new User());

}
}