UNCOMMENT THE

　　3、在src文件夹下面加入一个transactions.properties文件

　　# SAMPLE PROPERTIES FILE FOR THE TRANSACTION SERVICE

　　# THIS FILE ILLUSTRATES THE DIFFERENT SETTINGS FOR THE TRANSACTION MANAGER

　　# UNCOMMENT THE ASSIGNMENTS TO OVERRIDE DEFAULT VALUES;

　　# Required: factory implementation class of the transaction core.

　　# NOTE: there is no default for this, so it MUST be specified!

　　#

　　com.atomikos.icatch.service=com.atomikos.icatch.standalone.UserTransactionServiceFactory

　　# Set base name of file where messages are output

　　# (also known as the 'console file')。

　　#

　　# com.atomikos.icatch.console_file_name = tm.out

　　# Size limit (in bytes) for the console file;

　　# negative means unlimited.

　　#

　　# com.atomikos.icatch.console_file_limit=-1

　　# For size-limited console files, this option

　　# specifies a number of rotating files to

　　# maintain.

　　#

　　# com.atomikos.icatch.console_file_count=1

　　# Set the number of log writes between checkpoints

　　#

　　# com.atomikos.icatch.checkpoint_interval=500

　　# Set output directory where console file and other files are to be put

　　# make sure this directory exists!

　　#

　　# com.atomikos.icatch.output_dir = ./

　　# Set directory of log files; make sure this directory exists!

　　#

　　# com.atomikos.icatch.log_base_dir = ./

　　# Set base name of log file

　　# this name will be used as the first part of

　　# the system-generated log file name

　　#

　　# com.atomikos.icatch.log_base_name = tmlog

　　# Set the max number of active local transactions

　　# or -1 for unlimited.

　　#

　　# com.atomikos.icatch.max_actives = 50

　　# Set the default timeout (in milliseconds) for local transactions

　　#

　　# com.atomikos.icatch.default_jta_timeout = 10000

　　# Set the max timeout (in milliseconds) for local transactions

　　#

　　# com.atomikos.icatch.max_timeout = 300000

　　# The globally unique name of this transaction manager process

　　# override this value with a globally unique name

　　#

　　# com.atomikos.icatch.tm_unique_name = tm

　　# Do we want to use parallel subtransactions? JTA's default

　　# is NO for J2EE compatibility

　　#

　　# com.atomikos.icatch.serial_jta_transactions=true

　　# If you want to do explicit resource registration then

　　# you need to set this value to false.

　　#

　　# com.atomikos.icatch.automatic_resource_registration=true

　　# Set this to WARN, INFO or DEBUG to control the granularity

　　# of output to the console file.

　　#

　　# com.atomikos.icatch.console_log_level=WARN

　　# Do you want transaction logging to be enabled or not?

　　# If set to false, then no logging overhead will be done

　　# at the risk of losing data after restart or crash.

　　#

　　# com.atomikos.icatch.enable_logging=true

　　# Should two-phase commit be done in (multi-)threaded mode or not?

　　# Set this to false if you want commits to be ordered according

　　# to the order in which resources are added to the transaction.

　　#

　　# NOTE: threads are reused on JDK 1.5 or higher.

　　# For JDK 1.4, thread reuse is enabled as soon as the

　　# concurrent backport is in the classpath - see

　　# http://mirrors.ibiblio.org/pub/mirrors/maven2/backport-util-concurrent/backport-util-concurrent/

　　#

　　# com.atomikos.icatch.threaded_2pc=false

　　# Should shutdown of the VM trigger shutdown of the transaction core too?

　　#

　　# com.atomikos.icatch.force_shutdown_on_vm_exit=false

　　4、注入HibernateTemplate模板

　　a、为tms库注入HibernateTemplate模板

　　package com.test.dao.impl;

　　import java.io.Serializable;

　　import java.util.List;

　　import org.hibernate.criterion.DetachedCriteria;

　　import org.springframework.beans.factory.annotation.Autowired;

　　import org.springframework.orm.hibernate3.HibernateTemplate;

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

　　import org.springframework.stereotype.Repository;

　　import com.test.dao.BaseDao;

　　@Repository("tmsDao")

　　public class TmsBaseDaoImpl extends HibernateDaoSupport implements BaseDao{

　　protected HibernateTemplate tmsHibernateTemplate;

　　@Autowired

　　public void setTmsHibernateTemplate(HibernateTemplate tmsHibernateTemplate) {

　　this.tmsHibernateTemplate = tmsHibernateTemplate;

　　super.setHibernateTemplate(tmsHibernateTemplate);

　　}

　　@SuppressWarnings("rawtypes")

　　@Override

　　public List findAll(String hql) throws Exception {

　　return tmsHibernateTemplate.find(hql);

　　}

　　@SuppressWarnings("rawtypes")

　　@Override

　　public List query(String hql,Object value) throws Exception {

　　return tmsHibernateTemplate.find(hql, value);

　　}

　　@Override

　　public Serializable save(T entity) throws Exception {

　　Serializable s = tmsHibernateTemplate.save(entity);

　　return s;

　　}

　　@SuppressWarnings("unchecked")

　　@Override

　　public List find(DetachedCriteria detachedCriteria) throws Exception {

　　return tmsHibernateTemplate.findByCriteria(detachedCriteria);

　　}

　　}

　　b、为his库注入HibernateTemplate模板

　　package com.test.dao.impl;

　　import java.io.Serializable;

　　import java.util.List;

　　import org.hibernate.criterion.DetachedCriteria;

　　import org.springframework.beans.factory.annotation.Autowired;

　　import org.springframework.orm.hibernate3.HibernateTemplate;

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

　　import org.springframework.stereotype.Repository;

　　import com.test.dao.BaseDao;

　　@Repository("hisDao")

　　public class HisBaseDaoImpl extends HibernateDaoSupport implements BaseDao{

　　protected HibernateTemplate hisHibernateTemplate;

　　@Autowired

　　public void setHisHibernateTemplate(HibernateTemplate hisHibernateTemplate) {

　　this.hisHibernateTemplate = hisHibernateTemplate;

　　super.setHibernateTemplate(hisHibernateTemplate);

　　}

　　@SuppressWarnings("rawtypes")

　　@Override

　　public List findAll(String hql) throws Exception {

　　return hisHibernateTemplate.find(hql);

　　}

　　@SuppressWarnings("rawtypes")

　　@Override

　　public List query(String hql,Object value) throws Exception {

　　return hisHibernateTemplate.find(hql, value);

　　}

　　@Override

　　public Serializable save(T entity) throws Exception {

　　Serializable s = hisHibernateTemplate.save(entity);

　　return s;

　　}

　　@SuppressWarnings("unchecked")

　　@Override

　　public List find(DetachedCriteria detachedCriteria) throws Exception {

　　return hisHibernateTemplate.findByCriteria(detachedCriteria);

　　}

　　}

　　5、编写业务逻辑代码

　　package com.test.service.impl;

　　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.test.dao.BaseDao;

　　import com.test.entity.HisTest;

　　import com.test.entity.TmsTest;

　　import com.test.service.BaseService;

　　@Service

　　@Transactional(propagation=Propagation.REQUIRED)

　　public class BaseServiceImpl implements BaseService{

　　@Resource

　　private BaseDao tmsDao;

　　@Resource

　　private BaseDao hisDao;

　　@SuppressWarnings("rawtypes")

　　@Override

　　public List findTms() throws Exception {

　　/*DataSourceContextHolder.setDataSourceType(DataSourceConst.TMS_STRING);

　　String hql = "from MedicalCard";

　　return tmsDao.findAll(hql);*/

　　String hql = "FROM TmsTest";

　　return tmsDao.findAll(hql);

　　}

　　@SuppressWarnings("rawtypes")

　　public List findHis() throws Exception{

　　/*DataSourceContextHolder.setDataSourceType(DataSourceConst.HIS_STRING);

　　String hql = "from Patient where idNo = ?";

　　return hisDao.query(hql, idNo);*/

　　String hql = "FROM HisTest";

　　return hisDao.findAll(hql);

　　}

　　@Override

　　public void save(TmsTest tms, HisTest his) throws Exception {

　　tmsDao.save(tms);

　　hisDao.save(his);

　　}

　　}

　　测试方法

　　package com.test.junit;

　　import java.util.List;

　　import org.junit.Before;

　　import org.junit.Test;

　　import org.springframework.beans.factory.BeanFactory;

　　import org.springframework.context.ApplicationContext;

　　import org.springframework.context.support.ClassPathXmlApplicationContext;

　　import com.test.entity.HisTest;

　　import com.test.entity.TmsTest;

　　import com.test.service.BaseService;

　　public class TestService {

　　private BaseService service;

　　TmsTest tmsTest;

　　HisTest hisTest;

　　@Before

　　public void init(){

　　ApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"applicationContext.xml"});

　　BeanFactory factory = (BeanFactory) context;

　　service = factory.getBean("BaseService",BaseService.class);

　　tmsTest = new TmsTest();

　　tmsTest.setName("张三");

　　hisTest = new HisTest();

　　hisTest.setName("李四李四李四李四李四李四李四李四李四李四");

　　}

　　@Test

　　public void testDataSource() {

　　try {

　　@SuppressWarnings("unchecked")

　　List tmsList = service.findTms();

　　System.out.println("tms============" + tmsList.get(0)。getName());

　　} catch (Exception e) {

　　e.printStackTrace();

　　}

　　try {

　　@SuppressWarnings("unchecked")

　　List hisList = service.findHis();

　　System.out.println("his=================" + hisList.get(0)。getName());

　　} catch (Exception e) {

　　e.printStackTrace();

　　}

　　try {

　　service.save(tmsTest, hisTest);

　　} catch (Exception e) {

　　System.out.println("保存操作失败，事务整体回滚。");

　　}

　　}

　　}

　　在执行save()方法时会报异常，hisTest的name字段过长;

　　如果事务生效，save()方法会回滚掉，两张表都不会有save操作，保持事务的原子性;

　　如果事务不起作用，那么tmsTest插入操作会执行成功，往数据库添加一条记录;hisTest插入操作抛出异常终止向下执行;

　　Atomikos的集成到此就结束了。

　　注意

　　mysql的驱动需要5.1.10版本以上，低版本会出现如下错误：

　　java.lang.IllegalArgumentException: null source