`
dreamoftch
  • 浏览: 485378 次
  • 性别: Icon_minigender_1
  • 来自: 上海
社区版块
存档分类
最新评论

SSH框架整合入门helloworld两种事务管理方式(失败的自己)

    博客分类：
  • ssh
SSH整合入门struts2springhibernate
阅读更多

 

 做一下笔记(参考Spring 事务管理高级应用难点剖析: 第 2 部分)：

 

调用私有方法：下面的私有方法test出现异常，会受到事务控制

 

package com.tch.test.template.service;

import java.util.Date;
import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.tch.test.template.dao.QQServiceGroupDao;
import com.tch.test.template.po.QQServiceGroup;

@Service("xxService")
public class QQServiceGroupServiceImpl implements QQServiceGroupService {

	@Resource(name="QQServiceGroupDao")
	private QQServiceGroupDao QQServiceGroupDao;
	
	@Override
	@Transactional(rollbackFor=Exception.class)
	public void addQQServiceGroup(LBQQServiceGroup group) throws Exception {
		test(group);
	}

	private void test(QQServiceGroup group) throws Exception {
		QQServiceGroupDao.saveEntity(group);
		throw new Exception("私有方法异常");
	}
	
}

 

 

1.private 方法上面使用spring注解事物能起作用吗？

不能，因为spring的事务无非是通过两种方式：一种是JDK的Proxy代理（实现相同接口），另一种是使用cglib（通过继承该类，并重写方法），无论哪种，对于私有方法都不能实现代理，也就不能实现事务管理了。

 

 

2.既使用了hibernate又使用了ibatis或者jdbc的话，使用spring配置事物该怎么配置？

 

 

3.有三个方法 a,b,c

a调用b，

c也调用b,

 

现在要求a调用b的时候，b的事务传播特性是required（也就是共用一个事物）

并且c调用b的时候，b的事务传播特性是独立的（也就是b单独使用一个事物）

 

4.没有实现接口的类，配置注解事务能起作用吗？

 

可以；

这时候的事务是通过cglib扩展字节码的方式实现的（也就是上面说到的继承并重写方法的方式），

如果是实现了接口的类，它的事务是通过JDK自带的Proxy实现同样的接口的代理类实现的，

平时我们使用接口的方式的好处是方便以后扩展实现类

 

5.不能受到spring事务管理的方法：

 

如果是 基于接口的动态代理：除 public 外的其它所有的方法都不能使用spring事务，此外 public static 也不能被增强

 

如果是 基于 CGLib 的动态代理：private、static、final 的方法不能受到spring事务管理

 

 

Maven依赖：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.tch.test</groupId>
	<artifactId>template</artifactId>
	<packaging>war</packaging>
	<version>1.0.0</version>
	<name>template Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<!-- junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>${junit-version}</version>
			<scope>test</scope>
		</dependency>
		<!-- spring-context -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring-version}</version>
		</dependency>
		<!-- spring-orm -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-orm</artifactId>
			<version>${spring-version}</version>
		</dependency>
		<!-- hibernate -->
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-core</artifactId>
			<version>${hiberante-version}</version>
		</dependency>
		<!-- hibernate-proxool -->
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-proxool</artifactId>
			<version>${hiberante-version}</version>
		</dependency>
		<!-- struts2 -->
		<dependency>
			<groupId>org.apache.struts</groupId>
			<artifactId>struts2-core</artifactId>
			<version>${struts2-version}</version>
		</dependency>
		<!-- struts2-spring-plugin -->
		<dependency>
			<groupId>org.apache.struts</groupId>
			<artifactId>struts2-spring-plugin</artifactId>
			<version>${struts2-version}</version>
		</dependency>
		<!-- mysql -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${mysql-version}</version>
		</dependency>
		<!-- log4j -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j-version}</version>
		</dependency>
		<!-- slf4j-log4j -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j-version}</version>
		</dependency>
		<!-- aspectjrt -->
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjrt</artifactId>
			<version>${aspectj-version}</version>
		</dependency>
		<!-- aspectjweaver -->
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>${aspectj-version}</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>template</finalName>
	</build>
	<properties>
		<junit-version>4.11</junit-version>
		<spring-version>3.2.6.RELEASE</spring-version>
		<hiberante-version>3.6.10.Final</hiberante-version>
		<struts2-version>2.3.16</struts2-version>
		<mysql-version>5.1.28</mysql-version>
		<log4j-version>1.2.17</log4j-version>
		<slf4j-version>1.7.5</slf4j-version>
		<aspectj-version>1.7.4</aspectj-version>
	</properties>
</project>

  

 

 

 

如果要修改struts2的拦截地址后缀为  *.htm和 *.action则需要在struts.xml或者struts.properties中配置：

在struts.xml中配置的话：

 

<constant name="struts.action.extension" value=",htm,action"></constant>
或则在struts.properties中配置：

 

 

struts.action.extension=,htm,action
 前面的逗号是为了可以拦截不加后缀的请求，例如： http://localhost:8080/ssh/show.htm  、 http://localhost:8080/ssh/show.action 、 http://localhost:8080/ssh/show 三种方式

 

 

这里的hibernate功能没有真正的使用

 

首先当然是jar包了：

 

struts2里面的Jar包：下载的struts2压缩包里面的struts-2.3.15.1\apps\struts2-blank，直接引入，另外就是struts2-spring-plugin-2.3.15.1.jar这个struts2和spring整合的jar

 

hibernate:  hibernate3.jar是肯定的,另外就是hibernate-distribution-3.6.10.Final\lib\required下面的必须的包，以及jpa下面的hibernate-jpa-2.0-api-1.0.1.Final.jar

 

spring:  spring.jar

   

cglib-nodep-2.1_3.jar

 

slf4j-api-1.5.0.jar

 

slf4j-log4j12-1.5.0.jar

 

还有就是连接数据库的（mysql为例：）mysql-connector-java-5.0.8-bin.jar

 

所有的包在图片里面有汇总

 

 

好了，下面开始进入正题：

 

web.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" 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>Struts Blank</display-name>
	<!-- 指定spring配置文件applicationContext.xml（可以多个）的位置 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:applicationContext.xml</param-value>
	</context-param>
	<!-- 服务器启动的时候加载spring -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 配置struts2的filter -->
	<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>*.action</url-pattern>
	</filter-mapping>
	<!-- 配置字符编码过滤器 -->
	<filter>
		<filter-name>encodingFilter</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>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>

</web-app>

 

 

 

applicationContext.xml:注解事务管理，需要在方法上加@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)

<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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
				http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
				http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
	<!-- 启动注入功能 -->
	<context:annotation-config />
	<!-- 启动扫描component功能 -->
	<context:component-scan base-package="com.tch.test" />
	<!-- 启动注解实物配置功能 -->
	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
	<!-- 数据源 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/test"></property>
		<property name="username" value="root"></property>
		<property name="password" value="root"></property>
	</bean>
	<!-- 事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
    <!-- 使用xml和注解同时来映射实体类 -->
	<bean class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean" id="sessionFactory">
		<property name="dataSource" ref="dataSource"></property>
		<property name="packagesToScan">
		     <list>
		       <value>com.tch.test.ssh.entity.annotation</value><!-- 注解的实体类所在的包，例如下面的Student.class -->
		     </list>
		</property>		
		<property name="mappingLocations">
			<list>
				<value>classpath*:com/tch/test/ssh/entity/*.hbm.xml</value><!-- 指定xml格式的映射文件位置 -->
			</list>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
			</props>
		</property>
	</bean>
	<!--读取数据库配置文件  
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource"/>
		<property name="mappingLocations">
			 <value>classpath:com/tch/test/ssh/entity/*.hbm.xml</value>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.show_sql">true</prop>
			</props>
		</property>
	</bean>
	-->
</beans>

 

  

 

 

 

xml文件配置的事务管理方式：这种方式不需要在方法上加@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)

 

<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-2.5.xsd
				http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
				http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
				http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
	<!-- 启动注入功能 -->
	<context:annotation-config />
	<!-- 启动扫描component功能 -->
	<context:component-scan base-package="test,com.tch.test" />
	<!-- 不启动注解实物配置功能 
	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
	-->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="get*" read-only="true"/>
			<tx:method name="select*" read-only="true"/>
			<tx:method name="*" propagation="REQUIRED" rollback-for="java.lang.Exception"/>
		</tx:attributes>
	</tx:advice>
	<aop:config>
		<aop:pointcut expression="execution(* com.tch.test.ssh..*.*(..))" id="testpointcut"/>
		<aop:advisor advice-ref="txAdvice" pointcut-ref="testpointcut"/>
	</aop:config>
	<!-- 数据源 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/test"></property>
		<property name="username" value="root"></property>
		<property name="password" value="root"></property>
	</bean>
	<!-- 事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<!--读取数据库配置文件  -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource"/>
		<property name="mappingLocations">
			 <value>classpath:com/tch/test/ssh/entity/*.hbm.xml</value>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.show_sql">true</prop>
			</props>
		</property>
	</bean>
        <!-- 使用xml和注解同时来映射实体类 -->
        <!--
	<bean class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean" id="sessionFactory">
		<property name="dataSource" ref="dataSource"></property>
		<property name="packagesToScan">
		     <list>
		       <value>com.tch.test.ssh.entity.annotation</value><!-- 注解的实体类所在的包,例如下面的Student.class -->
		     </list>
		</property>		
		<property name="mappingLocations">
			<list>
				<value>classpath*:com/tch/test/ssh/entity/*.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
			</props>
		</property>
	</bean>
        -->
</beans>

 

 

 

 

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>
	<constant name="struts.enable.DynamicMethodInvocation" value="true" />
	<constant name="struts.devMode" value="true" />
        <!-- 自定义package，在里面加入拦截器栈，注意最后要加上默认拦截器栈，并将自定义的拦截器栈作为默认的拦截器栈，后面的package直接继承该package即可实现所有action加入拦截功能 -->
        <package name="mypackage" extends="struts-default">
		<interceptors>
			 <interceptor name="checkLogin" class="checkLogin"></interceptor>
			 <interceptor-stack name="myStack">
		          <interceptor-ref name="checkLogin"/>
		          <interceptor-ref name="defaultStack"/>
		     </interceptor-stack>
		</interceptors>
		<default-interceptor-ref name="myStack"/>
	</package>
	<package name="default" namespace="/" extends="mypackage">
		<default-action-ref name="index" />
		<global-results>
			<result name="error">/error.jsp</result>
		</global-results>
		<global-exception-mappings>
			<exception-mapping exception="java.lang.Exception"
				result="error" />
		</global-exception-mappings>
		<action name="show" class="userAction" method="select">
			<result>/WEB-INF/pages/User.jsp</result>
		</action>
		<action name="goEdit" class="userAction" method="goEdit">
			<result>/WEB-INF/pages/editUser.jsp</result>
		</action>
		<!-- 使用通配符 -->
		<action name="*User" class="userAction" method="{1}User">
			<result type="redirectAction">
				<param name="actionName">show</param>
				<param name="namespace">/</param>
			</result>
		</action>
	</package>
</struts>

  

 

 

拦截器：

package com.tch.test.ssh.interceptor;

import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.struts2.StrutsStatics;
import org.springframework.stereotype.Component;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;
import com.tch.test.ssh.entity.User;
import com.tch.test.ssh.info.LoginInfo;
import com.tch.test.ssh.info.UserInfo;

@Component("checkLogin")
public class CheckLoginInterceptor implements Interceptor {
	private static final long serialVersionUID = 1L;

	public CheckLoginInterceptor(){
		System.out.println("CheckLoginInterceptor拦截器创建");
	}
	
	@Override
	public String intercept(ActionInvocation invocation) throws Exception {
		System.out.println("interceptor............................");
		HttpServletRequest request = (HttpServletRequest) invocation.getInvocationContext().get(StrutsStatics.HTTP_REQUEST);  
		String url = request.getRequestURI();
		if(url.contains("/ssh/login.action")){
			//登陆
			return invocation.invoke();
		}
		//已经登陆
		HttpSession session = request.getSession();
		Date current_login_time = (Date) session.getAttribute("login_time");
		User user = (User) session.getAttribute("login_user");
		if(user == null || user.getId() == null || current_login_time == null){
			//session中没有相关信息，则重新登录
			return "login";
		}
		LoginInfo info = (LoginInfo)UserInfo.LOGIN_USERS.get(user.getId());
		if(info != null && info.getLoginTime() != null){
			Date latest_login_time = info.getLoginTime();
			if(latest_login_time.getTime() > current_login_time.getTime()){
				ActionContext.getContext().put("errorMessage", "账号在别处登录，当前用户被强制退出 !");
				session.invalidate();
				System.out.println("*****************删除session*************");
				return "error";
			}
		}
		return invocation.invoke();
	}

	@Override
	public void destroy() {
	}

	@Override
	public void init() {
	}
}

 

 

 

action:

package com.tch.test.ssh.web.action;

import java.util.List;
import java.util.Set;

import javax.annotation.Resource;

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

import com.opensymphony.xwork2.ActionSupport;
import com.tch.test.ssh.entity.Priority;
import com.tch.test.ssh.entity.User;
import com.tch.test.ssh.service.IPriorityService;
import com.tch.test.ssh.service.IUserService;

@Component("userAction")
@Scope("prototype")
public class UserAction extends ActionSupport {
	private static final long serialVersionUID = 1L;
	
	private User user;
	private List<Priority> priorities;
	
	@Resource(name="userService")
	private IUserService userService;
	@Resource(name="priorityService")
	private IPriorityService priorityService;
	
	private List<User> users;
	private List<String> priorityName;

	public List<String> getPriorityName() {
		return priorityName;
	}

	public void setPriorityName(List<String> priorityName) {
		this.priorityName = priorityName;
	}

	public String select() throws Exception{
		users = userService.select();
		System.out.println("所有用户数："+users.size());
		return "success";
	}
	
	public String addUser() throws Exception{
		System.out.println("add ..  "+user);
		userService.add(user);
		return "success";
	}
	public String goEdit() throws Exception{
		user = userService.getUserById(user.getId());
		priorities = priorityService.getPriorityByUserId(user.getId());
		System.out.println(user);
		return "success";
	}
	/**
	 * 删除用户
	 * @return
	 * @throws Exception
	 */
	public String deleteUser() throws Exception{
		userService.deleteUser(user.getId());
		return "success";
	}
	/**
	 * 修改用户信息
	 * @return
	 * @throws Exception
	 */
	public String editUser() throws Exception{
		try {
			Set<Priority> priorities = priorityService.getPrioritiesByNames(priorityName);
			user.setPriorities(priorities);
			userService.editUser(user);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return "success";
	}

	public User getUser() {
		return user;
	}

	public void setUser(User user) {
		this.user = user;
	}


	public List<Priority> getPriorities() {
		return priorities;
	}

	public void setPriorities(List<Priority> priorities) {
		this.priorities = priorities;
	}

	public List<User> getUsers() {
		return users;
	}

	public void setUsers(List<User> users) {
		this.users = users;
	}
	
}

 

 

 

service接口：

 

package com.tch.test.ssh.service;

import java.util.List;
import java.util.Set;

import com.tch.test.ssh.entity.Priority;

public interface IPriorityService {

	/**
	 * 根据id获取user对象
	 * @param id
	 * @return
	 */
	List<Priority> getPriorityByUserId(Integer id) throws Exception;
	/**
	 * 根据id获取实体对象
	 * @param id
	 * @return
	 */
	Priority getEntity(Integer id) throws Exception;
	/**
	 * 根据name获取实体对象
	 * @param id
	 * @return
	 */
	Set<Priority> getPrioritiesByNames(List<String> names) throws Exception;
	/**
	 * 测试事务
	 * @throws Exception
	 */
	void testTransaction() throws Exception;
}

 

 

 

 

package com.tch.test.ssh.service;

import java.util.List;

import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.tch.test.ssh.entity.User;

public interface IUserService {
	/**
	 * 测试事务特性
	 */
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	void testTransaction() throws Exception;
	/**
	 * 添加user对象
	 * @param id
	 * @return
	 */
	void add(User user) throws Exception;
	/**
	 * 查询所有user对象
	 * @param id
	 * @return
	 */
	List<User> select() throws Exception;
	/**
	 * 根据id获取user对象
	 * @param id
	 * @return
	 */
	User getUserById(Integer id) throws Exception;

	/**
	 * 根据id获取user对象
	 * @param id
	 * @return
	 */
	void editUser(Integer id, List<String> priorities) throws Exception;
	/**
	 * 根据id获取实体对象
	 * @param id
	 * @return
	 */
	User getEntity(Integer id) throws Exception;
}

 

 

service实现类：

 

package com.tch.test.ssh.service;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.tch.test.ssh.dao.IPriorityDao;
import com.tch.test.ssh.entity.Priority;

@Service("priorityService")
public class PriorityServiceImpl implements IPriorityService {

	@Resource(name="priorityDao")
	private IPriorityDao priorityDao;

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public List<Priority> getPriorityByUserId(Integer id) throws Exception{
		return priorityDao.getPriorityByUserId(id);
	}


	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public void testTransaction() throws Exception {
		Priority p = new Priority();
		p.setName("测试");
		priorityDao.save(p);
		boolean b=true;
		if(b){
			throw new Exception("priority 抛出异常。。。。");
		}
	}

}

 

 

 

 

package com.tch.test.ssh.service;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.tch.test.ssh.dao.IUserDao;
import com.tch.test.ssh.entity.User;

@Service("userService")
@Transactional(propagation=Propagation.REQUIRED)
public class UserServiceImpl implements IUserService {

	@Resource(name="userDao")
	private IUserDao userDao;
	
	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public void add(User user) throws Exception {
		userDao.save(user);
	}

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public void editUser(Integer id, List<String> priorities)  throws Exception{
		userDao.editUser(id, priorities);
	}

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public User getUserById(Integer id) throws Exception {
		return userDao.get(id);
	}

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public List<User> select() throws Exception {
		return userDao.getAll();
	}

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public User getEntity(Integer id) throws Exception {
		return userDao.get(id);
	}

	@Override
	@Transactional(propagation=Propagation.REQUIRED,rollbackFor=Exception.class)
	public void testTransaction() throws Exception {
		User user = new User();
		user.setName("service");
		user.setPassword("service");
		add(user);
		userDao.testTransaction();
	}

}

 

 

 

 

dao：

 

首先是dao基础接口

 

package com.tch.test.ssh.dao;

import java.io.Serializable;
import java.util.List;

public interface BaseDao<E, PK extends Serializable> {
	/**
	 *  CreaEed on 2013-9-16 
	 * <p>DiscripEion:保存对象</p>
	 * @reEurn void
	 */
	void save(E entity);
	/**
	 *  CreaEed on 2013-9-16 
	 * <p>DiscripEion:更新对象</p>
	 * @reEurn void
	 */
	void update(E entity);
	/**
	 *  CreaEed on 2013-9-16 
	 * <p>DiscripEion:删除对象</p>
	 * @reEurn void
	 */
	void delete(E entity);
	/**
	 *  CreaEed on 2013-9-16 
	 * <p>DiscripEion:根据id查询对象</p>
	 * @reEurn void
	 */
	E get(PK id);
	/**
	 *  CreaEed on 2013-9-16 
	 * <p>DiscripEion:查询全部对象</p>
	 * @reEurn void
	 */
	List<E> getAll();
	/**
	 *  Created on: 			2013-12-4 
	 * <p>Discription:			保存全部</p>
	 * @param entities
	 * @return 				void
	 */
	void saveAll(List<E> entities);
	
}

 

 

dao基础实现类：

package com.tch.test.ssh.dao;

import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;

public class BaseDaoImpl<E, PK extends Serializable> extends CommomDao implements BaseDao<E,PK>{

	private Class<E> clazz;
	
	@SuppressWarnings("unchecked")
	public BaseDaoImpl(){
		this.clazz = (Class<E>)((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];
	}
	
	@Override
	public void delete(E entity) {
		getHibernateTemplate().delete(entity);
	}

	@SuppressWarnings("unchecked")
	@Override
	public E get(PK id) {
		return (E)getHibernateTemplate().get(clazz, id);
	}

	@SuppressWarnings("unchecked")
	@Override
	public List<E> getAll() {
		return getHibernateTemplate().loadAll(clazz);
		/*String hql = "from "+clazz.getName();
		System.out.println("hql: "+hql);
		return getSession().createQuery(hql).list();*/
	}

	@Override
	public void save(E entity) {
		getHibernateTemplate().save(entity);
	}

	@Override
	public void update(E entity) {
		getHibernateTemplate().update(entity);
	}
	@Override
	public void saveAll(List<E> entities) {
		getHibernateTemplate().saveOrUpdateAll(entities);
	}
}

  

 

 

dao接口的demo:

package com.tch.test.ssh.dao;

import com.tch.test.ssh.entity.MyTime;

public interface TimeDao extends BaseDao<MyTime, Integer>{

	
}

 

 

 

 

dao实现类的demo:

package com.tch.test.ssh.dao;

import org.springframework.stereotype.Repository;

import com.tch.test.ssh.entity.MyTime;
@Repository("TimeDao")
public class TimerDaoImpl extends BaseDaoImpl<MyTime, Integer> implements TimeDao{

}

 

 

 

 

package com.tch.test.ssh.dao;

import javax.annotation.Resource;

import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class CommomDao extends HibernateDaoSupport{

	@Resource(name="sessionFactory")
	public void setSuperSessionFactory(SessionFactory sessionFactory){
		this.setSessionFactory(sessionFactory);
	}
	
}

 

 

package com.tch.test.ssh.dao;

import java.util.List;

import com.tch.test.ssh.entity.Priority;

public interface IPriorityDao extends BaseDao<Priority,Integer>{
	/**
	 * 根据id获取user对象
	 * @param id
	 * @return
	 */
	List<Priority> getPriorityByUserId(Integer id) throws Exception;
}

 

package com.tch.test.ssh.dao;

import java.util.List;

import com.tch.test.ssh.entity.User;

public interface IUserDao extends BaseDao<User,Integer> {
	/**
	 * 根据id获取user对象
	 * @param id
	 * @return
	 */
	void editUser(Integer id, List<String> priorities) throws Exception;
	
	/**
	 * 测试事务
	 */
	void testTransaction() throws Exception;
}

 

 

package com.tch.test.ssh.dao;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Repository;

import com.tch.test.ssh.entity.Priority;

@Repository("priorityDao")
public class PriorityDaoImpl extends BaseDaoImpl<Priority,Integer> implements IPriorityDao {

	/**
	 * 根据用户id查询用户权限
	 * @param id
	 * @return
	 */
	@SuppressWarnings("unchecked")
	@Override
	public List<Priority> getPriorityByUserId(Integer id) throws Exception {
		List<Priority> priorities = new ArrayList<Priority>();
		String sql = " select p.id,p.name from User u , Priority p , User_Priority up where u.id = :id and u.id = up.userId and p.id = up.priorityId ";
		List<Object[]> result = getSession().createSQLQuery(sql).setInteger("id", id).list();
		if(result != null && result.size()>0){
			Priority temp = null;
			for(Object[] obj:result){
				temp = new Priority();
				temp.setId(Integer.parseInt(obj[0].toString()));
				temp.setName(obj[1].toString());
				priorities.add(temp);
			}
		}
		return priorities;
	}

}

 

 

 

package com.tch.test.ssh.dao;

import java.util.List;

import org.hibernate.Session;
import org.springframework.stereotype.Repository;

import com.tch.test.ssh.entity.User;

@Repository("userDao")
public class UserDaoImpl extends BaseDaoImpl<User,Integer> implements IUserDao{
	
	@Override
	public void testTransaction() throws Exception {
		User user = new User();
		user.setName("test");
		user.setPassword("password");
		getHibernateTemplate().save(user);
		boolean b=true;
		if(b){
			throw new Exception("priority 抛出异常。。。。");
		}
	}
	
	/**
	 * 修改用户权限
	 * @param id
	 * @param priorities
	 */
	@Override
	public void editUser(Integer id, List<String> priorities)  throws Exception{
		//删除已有的
		Session session = getSessionFactory().openSession();
		String sql = " delete up from User_Priority up where up.userId = :userId ";
		session.createSQLQuery(sql).setInteger("userId", id).executeUpdate();
		//再重新插入
		sql = " insert into User_Priority(userId,priorityId) values(:userId,:priorityId) "; 
		String sql2 = " select id from priority where name = :name ";
		for(String p:priorities){
			Integer pId = (Integer) session.createSQLQuery(sql2).setString("name", p).uniqueResult();
			session.createSQLQuery(sql).setInteger("userId", id).setInteger("priorityId", pId).executeUpdate();
		}
	}
}

 

 

 

 

 

实体类：Priority.java 

 

 

package com.tch.test.ssh.entity;

import java.util.Set;

/**
 * Priority entity. @author MyEclipse Persistence Tools
 */

public class Priority implements java.io.Serializable {

	// Fields
	private static final long serialVersionUID = 1L;
	private Integer id;
	private String name;
	private Set<User> users;

	// Constructors

	/** default constructor */
	public Priority() {
	}

	@Override
	public String toString() {
		return "Priority [id=" + id + ", name=" + name + "]";
	}

	/** full constructor */
	public Priority(String name) {
		this.name = name;
	}

	// Property accessors

	public Integer getId() {
		return this.id;
	}

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

	public String getName() {
		return this.name;
	}

	public Set<User> getUsers() {
		return users;
	}

	public void setUsers(Set<User> users) {
		this.users = users;
	}

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

}

 

 

 User.java 

package com.tch.test.ssh.entity;

import java.util.Set;

/**
 * User entity. @author MyEclipse Persistence Tools
 */

public class User implements java.io.Serializable {

	// Fields


	private static final long serialVersionUID = 1L;
	private Integer id;
	private String name;
	private String password;
	private Set<Priority> priorities;

	// Constructors

	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + ", password=" + password
				+ ", priorities=" + priorities + "]";
	}

	/** default constructor */
	public User() {
	}

	/** full constructor */
	public User(String name, String password) {
		this.name = name;
		this.password = password;
	}

	// Property accessors

	public Integer getId() {
		return this.id;
	}

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

	public String getName() {
		return this.name;
	}

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

	public Set<Priority> getPriorities() {
		return priorities;
	}

	public void setPriorities(Set<Priority> priorities) {
		this.priorities = priorities;
	}

	public String getPassword() {
		return this.password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

}

  

 

 

映射文件：（没有配置表关联关系）：

 

注解的实体映射文件：

package com.tch.test.ssh.entity.annotation;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="student")
public class Student implements Serializable {
	private static final long serialVersionUID = 1L;

	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	private Integer id;
	private String name;
	private int age;
	
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	
}

 

 

 User.hbm.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.tch.test.ssh.entity.User" table="user" catalog="test">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="identity" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="name" length="20">
                <comment>姓名</comment>
            </column>
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" length="20">
                <comment>密码</comment>
            </column>
        </property>
        <set name="priorities" table="User_Priority" inverse="false">
            <key column="userId"></key>
            <many-to-many class="com.tch.test.ssh.entity.Priority"
                column="priorityId"></many-to-many>
        </set>
    </class>
</hibernate-mapping>

  

 

 

 

 Priority.hbm.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.tch.test.ssh.entity.Priority" table="priority" catalog="test">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="identity" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="name" length="20">
                <comment>模块名</comment>
            </column>
        </property>
        <set name="users" table="User_Priority" inverse="true">
            <key column="priorityId"></key>
            <many-to-many class="com.tch.test.ssh.entity.User"
                column="userId"></many-to-many>
        </set>
    </class>
</hibernate-mapping>

  

 

 

 

 

页面：User.jsp

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags"  prefix="s"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>My JSP 'User.jsp' starting page</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<style type="text/css">
		*{
			margin:0;
			padding:0;
			color:#666;
		}
		body{
			background-color: #fff;
		}
		table{
			margin:20px auto;
		}
		a{
			text-decoration: none;
			color:red;
		}
		tr{
			height:35px;
			cursor:pointer;
		}
		#_table2{
			margin-top: 20px;
		}
		.detail ._mouseover{
			background-color:#eee;
		}
		input[type='text'],input[type='password']{
			height:30px;
			border:1px solid black;
			background-color: #fff;
		}
		._eventr{
			background-color:#eee;
		}
	</style>
	<script type="text/javascript" src="<%=request.getContextPath()%>/common/js/jquery.min.js"></script>
	<script type="text/javascript">
		$(function(){
			$("tbody tr").hover(function(){
				$(this).addClass('_mouseover');
			},function(){
				$(this).removeClass('_mouseover');
			});
		});
		//添加用户
		function addUser(){
			var f = document.forms[0];
			f.action = "addUser.action";
			f.submit();
		}
		function deleteUser(id,name){
			var result = confirm("确认删除"+name+"?");
			if(result){
				window.location.href='deleteUser.action?user.id='+id;
			}
		}
	</script>
  </head>
  <body>
    
    <form action="" method="post">
    	<table cellpadding="0" cellspacing="0" border="1" width="60%" align="center" class="detail">
    		<thead>
    			<tr>
    				<th width="15%" align="center">id</th>
    				<th width="15%" align="center">用户名</th>
    				<th width="15%" align="center">密码</th>
    				<th width="15%" align="center">操作</th>
    			</tr>
    		</thead>
    		<tbody>
    			<s:iterator value="users" status="user">
	    			<tr <s:if test="#user.even">class='_eventr'</s:if>>
		   				<td width="15%" align="center"><s:property value="id"/></td>
		   				<td width="15%" align="center"><s:property value="name"/></td>
		   				<td width="15%" align="center"><s:property value="password"/></td>
		   				<td width="15%" align="center">
		   					<a href="javascript:window.location.href='goEdit.action?user.id=<s:property value='id'/>'">编辑</a>
		   					<a href="javascript:deleteUser(<s:property value='id'/>,'<s:property value='name'/>')">删除</a>
		   				</td>
		   			</tr>
	    		</s:iterator>
    		</tbody>
    	</table>
    	<table cellpadding="0" cellspacing="0" border="0" width="60%" align="center" id="_table2">
    		<tr>
    			<td colspan="3">用户名：<input type="text" name="user.name">密码：<input type="text" name="user.password"></td>
    			<td><input type="button" onclick="addUser()" value="添加用户"></td>
    		</tr>
    	</table>
    </form>
    
    
  </body>
</html>

 

 

editUser.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags"  prefix="s"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>My JSP 'User.jsp' starting page</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<style type="text/css">
		*{
			margin:0;
			padding:0;
			color:#666;
			line-height:30px;
		}
		#content{
			width:500px;
			margin:30px auto;
			
		}
		input[type='checkbox']{
			margin-top: 2px;
			margin-left: 10px;
			margin-right: 10px;
		}
		input[type='text'],input[type='password']{
			height:30px;
			border:1px solid black;
			background-color: #fff;
		}
		form .priority{
			float:left
			margin-left: 20px;
		}
	</style>
  </head>
  <body>
    <div id="content">
    <form action="editUser.action" method="post" name="myform">
    	用户名：<input type="text" value="<s:property value='user.name'/>" name="user.name">
    	密码：<input type="text" value="<s:property value='user.password'/>" name="user.password"><br/>
    	<span class="priority">权限：</span><br/>
    	<input type="checkbox" name="priorityName" value="管理员" <s:if test="'管理员' in priorities.{name}">checked='checked'</s:if>>管理员<br/>
    	<input type="checkbox" name="priorityName" value="程序员"<s:if test="'程序员' in priorities.{name}">checked='checked'</s:if>>程序员<br/>
    	<input type="checkbox" name="priorityName" value="测试员"<s:if test="'测试员' in priorities.{name}">checked='checked'</s:if>>测试员<br/>
    	<input type="checkbox" name="priorityName" value="运维人员"<s:if test="'运维人员' in priorities.{name}">checked='checked'</s:if>>运维人员<br/>
    	<input type="hidden" name="user.id" value="${user.id}">
    	<input type="submit"  value="确认修改">
    </form>
    </div>
  </body>
</html>

 

 

 

log4j.properties:

 

#
# Log4J Settings for log4j 1.2.x (via jakarta-commons-logging)
#
# The five logging levels used by Log are (in order):
#
#   1. DEBUG (the least serious)
#   2. INFO
#   3. WARN
#   4. ERROR
#   5. FATAL (the most serious)


# Set root logger level to WARN and append to stdout
log4j.rootLogger=info, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%d %5p (%c:%L) - %m%n

# Print only messages of level ERROR or above in the package noModule.
log4j.logger.noModule=FATAL

log4j.logger.com.opensymphony.xwork2=info
log4j.logger.org.apache.struts2=info

 

 

测试类：

 

package com.tch.test.ssh.test;

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

import com.tch.test.ssh.entity.Priority;
import com.tch.test.ssh.entity.User;

public class SpringTest {
	
	@Test
	public void testHibernate(){
		ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
		SessionFactory sessionFactory = (SessionFactory)context.getBean("sessionFactory");
		Session session = sessionFactory.openSession();
		session.beginTransaction();
		User u = new User();
		u.setId(1);
		u = (User)session.get(User.class, 1);
		System.out.println(u.getPriorities());
		Priority p = (Priority) session.load(Priority.class, 3);
		u.getPriorities().add(p);
//		u.getPriorities().remove(p);
//		Priority p = new Priority();
//		p.setId(3);
//		u.setPriorities(null);
		
		session.update(u);
		System.out.println(u.getPriorities());
		session.getTransaction().commit();
		session.close();
	}

}

 

 

 

 

 

完整代码：网盘下载

  • 大小: 47 KB
  • ssh.rar (47.8 KB)
  • 下载次数: 1
分享到：
| java 动态代理的两种方式（jdk,cglib）
评论
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

Magicbox
Global site tag (gtag.js) - Google Analytics