Spring+Mybatis+SpringMVC+Atomikos多数据源共存+不同数据库事物一致性处理
2024-10-19 10:28:24
网上找了一大堆的例子，没一个跑通的，都是copy转发，哎，整理得好辛苦。。做个笔记，方便正遇到此问题的猿们能够得到帮助。。。。废话不多说，贴代码。。。。。
项目结构说明：
1.dao层的admin、website包中包含的Mapper.xml文件分别操作不同的数据库
2.举例：192.168.1.1下有个mysql数据库叫 odao_admin
192.168.1.2下有个sqlserver数据库叫 odao_mobile
详情见下方的jdbc.properties文件
1:Pom.xml
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.odao.official</groupId>
<artifactId>odao-official</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>odao-official website</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>4.1.6.RELEASE</spring.version>
<jackson.version>2.5.0</jackson.version>
</properties>
<dependencies>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency> <!-- activemq -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>5.9.0</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.9.0</version>
</dependency> <dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency> <!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-spring</artifactId>
<version>4.2</version>
</dependency> <!-- mybatis 包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency> <!--mybatis spring 插件 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency> <!-- 数据源 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.12</version>
</dependency> <dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.4</version>
</dependency> <!-- log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency> <!-- servlet
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>3.0-alpha-1</version>
</dependency> -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency> <!-- json -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.3</version>
</dependency> <dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency> <dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency> <dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency> <dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency> <!-- 文件上传 -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency> <dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency> <!-- ORM映射持久化 -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency> <!-- sqlserver驱动 -->
<dependency>
<groupId>com.hynnet</groupId>
<artifactId>sqljdbc4-chs</artifactId>
<version>4.0.2206.100</version>
</dependency> <!-- mysql驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency> <!-- atomikos -->
<dependency>
<groupId>com.atomikos</groupId>
<artifactId>transactions-jdbc</artifactId>
<version>3.7.0</version>
</dependency> <dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency> <!-- cglib -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>3.2.2</version>
</dependency> </dependencies>
</project>
2:web.xml:
<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
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">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list> <display-name>odao-official</display-name> <!-- Spring Application Context Listener & spring-mybaits
-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- Spring MVC Config -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- Filter all resources -->
<url-pattern>/</url-pattern>
</servlet-mapping> <!-- Log4J -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<!-- Spring Log4J config -->
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener> <!-- Spring 编码过滤器 -->
<filter>
<filter-name>characterEncoding</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> </web-app>
3:spring-mybatis.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:jee="http://www.springframework.org/schema/jee"
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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--引入配置属性文件 -->
<context:property-placeholder location="classpath:jdbc.properties" /> <!-- 自动扫描 -->
<context:component-scan base-package="com.odao" /> <!-- 配置连接odao_mobile库的数据源 -->
<bean id="odaoMobile" class="com.atomikos.jdbc.nonxa.AtomikosNonXADataSourceBean">
<!-- value只要两个数据源不同就行，随便取名 -->
<property name="uniqueResourceName" value="odaoMobileDB" />
<property name="driverClassName">
<value>${odaoMobile.jdbc.driver}</value>
</property>
<property name="url">
<value>${odaoMobile.jdbc.url}</value>
</property>
<property name="user">
<value>${odaoMobile.jdbc.username}</value>
</property>
<property name="password">
<value>${odaoMobile.jdbc.password}</value>
</property>
</bean> <!-- 配置连接odao_admin库的数据源 -->
<bean id="odaoAdmin" class="com.atomikos.jdbc.nonxa.AtomikosNonXADataSourceBean">
<!-- value只要两个数据源不同就行，随便取名 -->
<property name="uniqueResourceName" value="odaoAdminDB" />
<property name="driverClassName">
<value>${odaoAdmin.jdbc.driver}</value>
</property>
<property name="url">
<value>${odaoAdmin.jdbc.url}</value>
</property>
<property name="user">
<value>${odaoAdmin.jdbc.username}</value>
</property>
<property name="password">
<value>${odaoAdmin.jdbc.password}</value>
</property>
</bean> <bean id="webSiteSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="odaoMobile" />
<property name="mapperLocations" value="classpath:com/odao/dao/website/**/impl/*Mapper.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.odao.dao.website" />
<property name="sqlSessionFactoryBeanName" value="webSiteSqlSessionFactory" />
</bean> <bean id="adminSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="odaoAdmin" />
<property name="mapperLocations" value="classpath:com/odao/dao/admin/**/impl/*Mapper.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.odao.dao.admin" />
<property name="sqlSessionFactoryBeanName" value="adminSqlSessionFactory" />
</bean> <bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
init-method="init" destroy-method="close">
<property name="forceShutdown">
<value>true</value>
</property>
</bean>
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300" />
</bean> <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager">
<ref bean="atomikosTransactionManager"/>
</property>
<property name="userTransaction">
<ref bean="atomikosUserTransaction"/>
</property>
<!-- 必须设置，否则程序出现异常 JtaTransactionManager does not support custom isolation levels by default -->
<property name="allowCustomIsolationLevels" value="true"/>
</bean> <aop:config proxy-target-class="true">
<aop:advisor pointcut="execution(* *com.odao.service..*(..))" advice-ref="txAdvice" />
</aop:config> <tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="insert*" propagation="REQUIRED" read-only="true" />
<tx:method name="add*" propagation="REQUIRED" rollback-for="java.lang.Exception" />
<tx:method name="save*" propagation="REQUIRED" read-only="true" />
<tx:method name="delete*" propagation="REQUIRED" read-only="true" />
<tx:method name="del*" propagation="REQUIRED" read-only="true" />
<tx:method name="update*" propagation="REQUIRED" read-only="true" />
</tx:attributes>
</tx:advice> </beans>
注意：上面配置的basePackage属性指定的不同的Mapper文件
4:spring-mvc.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
<context:component-scan base-package="com.odao.controller" /> <!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean> <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<!-- json转换器 -->
<ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean> <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean> <!-- 配置多文件上传 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding">
<value>UTF-8</value>
</property>
<property name="maxUploadSize">
<!-- 上传文件大小限制为31M，31*1024*1024 -->
<value>32505856</value>
</property>
<property name="maxInMemorySize">
<value>4096</value>
</property>
</bean>
</beans>
5. jdbc.properties:
#mysql数据库链接
odaoAdmin.jdbc.driver=com.mysql.jdbc.Driver
odaoAdmin.jdbc.url=jdbc:mysql://192.168.1.1:3306/odao_admin?useUnicode=true&characterEncoding=utf8
odaoAdmin.jdbc.username=odao
odaoAdmin.jdbc.password=whattime
#sqlserver数据库链接
odaoMobile.jdbc.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver
odaoMobile.jdbc.url=jdbc:sqlserver://192.168.1.2:1433;DatabaseName=odao_mobile
odaoMobile.jdbc.username=sa
odaoMobile.jdbc.password=odao
validationQuery=SELECT 1
6.jta.properties:
com.atomikos.icatch.service=com.atomikos.icatch.standalone.UserTransactionServiceFactory
com.atomikos.icatch.console_file_name = tm.out
com.atomikos.icatch.log_base_name = tmlog
com.atomikos.icatch.tm_unique_name = com.atomikos.spring.jdbc.tm
com.atomikos.icatch.console_log_level =INFO
注意：jta.properties 文件在你复制的时候可能有空格，记得删掉
7:log4j.properties:
### set log levels ###
log4j.rootLogger = Debug , C , D , E ### console ###
log4j.appender.C = org.apache.log4j.ConsoleAppender
log4j.appender.C.Target = System.out
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH\:mm\:ss}] %C.%M(%L) | %m%n ### log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ../logs/springmvc-mybatis-demo.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH\:mm\:ss}] %C.%M(%L) | %m%n ### exception ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = ../logs/springmvc-mybatis-demo_error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern =[sspringmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH\:mm\:ss}] %C.%M(%L) | %m%n
8. 控制层 UserInfoController.java :
package com.odao.controller.user; import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import com.odao.entity.UserInfo;
import com.odao.service.website.UserService; @Controller
@RequestMapping("/user/")
public class UserInfoController { @Autowired
private UserService userService; @RequestMapping("userInfoList.do")
public ModelAndView getUserInfoList(HttpServletRequest request, HttpServletResponse response){
ModelAndView modelAndView = new ModelAndView("user/userInfoList");
List<UserInfo> userInfoList = userService.selectAll();
List<UserInfo> userInfo = userService.selectUser();
modelAndView.addObject("userName",userInfoList.get(0).getTest_id()+"===="+userInfo.get(0).getTest_name());
return modelAndView;
} @ResponseBody
@RequestMapping("updateUserInfo.do")
public ModelAndView updateUserInfo(HttpServletRequest request, HttpServletResponse response){
ModelAndView modelAndView = new ModelAndView("user/userInfoList");
UserInfo user = new UserInfo();
user.setTest_id(1);
user.setTest_name("嗯~有耐心看到这里的都帅");;
userService.saveUser(user);
return modelAndView;
}
}
9.业务逻辑层：UserService.java:
package com.odao.service.website; import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.odao.dao.admin.user.AdminUserInfoDao;
import com.odao.dao.website.user.WebSiteUserInfoDao;
import com.odao.entity.UserInfo; @Service
public class UserService { @Autowired
private WebSiteUserInfoDao websiteUserInfoDao; @Autowired
private AdminUserInfoDao adminUserInfoDao; public List<UserInfo> selectAll() {
return websiteUserInfoDao.selectAll();
} public List<UserInfo> selectUser() {
return adminUserInfoDao.selectUser();
}
public void saveUser(UserInfo userInfo){
websiteUserInfoDao.saveUser(userInfo);
//测试操作不同数据库时，事物回滚的一致性(要么都成功，要么都失败)
if(1==1){
throw new NullPointerException();
}
adminUserInfoDao.saveUser(userInfo);
} }
整个项目大致就这样，entity跟dao就不贴了，你们看方法也能猜到，图片上的transaction-context.xml文件内容我给弄到了spring-mybatis.xml里面，就是一些关于分布式事物的
码字不容易，转载请注明出处，谢谢。。。。。
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