Spring+iBatis+JOTM实现JTA事务

Spring+iBatis+JOTM实现JTA事务

 

JOTM是个开源的JTA事务管理组件，可以让程序脱离J2EE容器而获得分布式事务管理的能力。

 

测试过程如下：

 

一、环境

 

1、准备软件环境

 spring-framework-2.5.6.SEC01-with-dependencies.zip
 ibatis-2.3.4
 ow2-jotm-dist-2.1.4-bin.tar.gz
 MySQL-5.1
 JDK1.5

 

2、创建数据库环境，注意数据库引擎为InnoDB，只有这样才能支持事务。

 

CREATE DATABASE IF NOT EXISTS testdb_a     DEFAULT CHARACTER SET utf8;

USE testdb_a;

DROP TABLE IF EXISTS tab_a;

CREATE TABLE tab_a (
    id bigint(20) NOT NULL,
     name varchar(60) DEFAULT NULL,
    address varchar(120) DEFAULT NULL,
     PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;


CREATE DATABASE IF NOT EXISTS testdb_b     DEFAULT CHARACTER SET utf8;

USE testdb_b;

DROP TABLE IF EXISTS tab_b;

CREATE TABLE tab_b (
    id bigint(20) NOT NULL,
     name varchar(60) DEFAULT NULL,
    address varchar(120) DEFAULT NULL,
     PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

二、建立项目testJOTM

 

1、建立项目后，准备依赖的类库，结构如下：

│    spring-aop.jar
│    spring-beans.jar
│    spring-context-support.jar
│    spring-context.jar
│    spring-core.jar
│    spring-jdbc.jar
│    spring-jms.jar
│    spring-orm.jar
│    spring-test.jar
│    spring-tx.jar
│    spring-web.jar
│    spring-webmvc-portlet.jar
│    spring-webmvc-struts.jar
│    spring-webmvc.jar
│    aspectjrt.jar
│    aspectjweaver.jar
│    cglib-nodep-2.1_3.jar
│    asm-2.2.3.jar
│    log4j-1.2.15.jar
│    asm-commons-2.2.3.jar
│    asm-util-2.2.3.jar
│    aopalliance.jar
│    mysql-connector-java-5.1.6-bin.jar
│
├─ibatis
│            ibatis-2.3.4.726.jar
│            sql-map-2.dtd
│            sql-map-config-2.dtd
│
├─jotm
│            license.txt
│            xapool.jar
│            jotm-core.jar
│            jotm-standalone.jar
│            jotm-jms.jar
│            jotm-datasource.jar
│            ow2-jta-1.1-spec.jar
│            jotm-client.jar
│
├─jakarta-commons
│            commons-attributes-api.jar
│            commons-attributes-compiler.jar
│            commons-beanutils.jar
│            commons-codec.jar
│            commons-collections.jar
│            commons-dbcp.jar
│            commons-digester.jar
│            commons-discovery.jar
│            commons-fileupload.jar
│            commons-httpclient.jar
│            commons-io.jar
│            commons-lang.jar
│            commons-logging.jar
│            commons-pool.jar
│            commons-validator.jar
│
├─junit
│            junit-3.8.2.jar
│            junit-4.4.jar
│            license.txt
│
└─log4j
                log4j-1.2.15.jar

 

2、根据表建立entity和SQLMap

public class TabA implements Serializable {
         private Long id;
         private String name;
         private String address;
         //省略getter/setter

 

public class TabB implements Serializable {
         private Long id;
         private String name;
         private String address;
         //省略getter/setter

TabA.xml

<? xml version ="1.0" encoding ="UTF-8" ?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd" >

<!-- 表名:tab_a -->
< sqlMap namespace ="tab_a" >
         < typeAlias alias ="TabA" type ="com.lavasoft.stu.jtom.entity.TabA" />
         < resultMap id ="result_base" class ="TabA" >
                 < result property ="id" column ="id" />
                 < result property ="name" column ="name" />
                 < result property ="address" column ="address" />
         </ resultMap >
        <!-- 添加 -->
         < insert id ="insert" parameterClass ="TabA" >
                insert into tab_a(
                id,
                name,
                address
                ) values (
                #id#,
                #name#,
                #address#
                )
                 < selectKey keyProperty ="id" resultClass ="long" >
                        select LAST_INSERT_ID()
                 </ selectKey >
         </ insert >
        <!-- 更新 -->
         < update id ="update" parameterClass ="TabA" >
                update tab_a set
                id = #id#,
                name = #name#,
                address = #address#
                where id = #id#
         </ update >
        <!-- 删除 -->
         < delete id ="deleteById" parameterClass ="long" >
                delete from tab_a
                where id = #value#
         </ delete >
        <!-- 根据ID获取 -->
         < select id ="findById" parameterClass ="long" resultMap ="tab_a.result_base" >
                select *
                from tab_a
                where id = #value#
         </ select >
</ sqlMap >

 

TabB.xml

<? xml version ="1.0" encoding ="UTF-8" ?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd" >

<!-- 表名:tab_b -->
< sqlMap namespace ="tab_b" >
         < typeAlias alias ="TabB" type ="com.lavasoft.stu.jtom.entity.TabB" />
         < resultMap id ="result_base" class ="TabB" >
                 < result property ="id" column ="id" />
                 < result property ="name" column ="name" />
                 < result property ="address" column ="address" />
         </ resultMap >
        <!-- 添加 -->
         < insert id ="insert" parameterClass ="TabB" >
                insert into tab_b(
                id,
                name,
                address
                ) values (
                #id#,
                #name#,
                #address#
                )
                 < selectKey keyProperty ="id" resultClass ="long" >
                        select LAST_INSERT_ID()
                 </ selectKey >
         </ insert >
        <!-- 更新 -->
         < update id ="update" parameterClass ="TabB" >
                update tab_b set
                id = #id#,
                name = #name#,
                address = #address#
                where id = #id#
         </ update >
        <!-- 删除 -->
         < delete id ="deleteById" parameterClass ="long" >
                delete from tab_b
                where id = #value#
         </ delete >
        <!-- 根据ID获取 -->
         < select id ="findById" parameterClass ="long" resultMap ="tab_b.result_base" >
                select *
                from tab_b
                where id = #value#
         </ select >
</ sqlMap >

 

/**
* TabADAO
*
* @author leizhimin 2009-6-25 12:39:19
*/
public interface TabADAO {

         /**
         * 保存一个TabA对象
         *
         * @param tabA TabA对象
         * @return 返回保存后的对象
         */
        TabA saveTabA(TabA tabA);

         /**
         * 更新一个TabA
         *
         * @param tabA TabA对象
         * @return 返回更新后的对象
         */
        TabA updateTabA(TabA tabA);

         /**
         * 删除指定标识的一个TabA
         *
         * @param id TabA标识
         */
         void deleteTabAById(Long id);

         /**
         * 获取指定标识的TabA
         *
         * @param id TabA标识
         * @return 所查询到的TabA
         */
        TabA findTabAById(Long id);
}

 

/**
* TabADAO
*
* @author leizhimin 2009-6-25 12:43:55
*/
public class TabADAOImpl extends SqlMapClientDaoSupport implements TabADAO {

         /**
         * 保存一个TabA对象
         *
         * @param tabA TabA对象
         * @return 返回保存后的对象
         */
         public TabA saveTabA(TabA tabA) {
                Long id = (Long) getSqlMapClientTemplate().insert( "tab_a.insert", tabA);
                tabA.setId(id);
                 return tabA;
        }

         /**
         * 更新一个TabA
         *
         * @param tabA TabA对象
         * @return 返回更新后的对象
         */
         public TabA updateTabA(TabA tabA) {
                getSqlMapClientTemplate().update( "tab_a.update", tabA);
                 return tabA;
        }

         /**
         * 删除指定标识的一个TabA
         *
         * @param id TabA标识
         */
         public void deleteTabAById(Long id) {
                getSqlMapClientTemplate().delete( "tab_a.deleteById",id);
        }

         /**
         * 获取指定标识的TabA
         *
         * @param id TabA标识
         * @return 所查询到的TabA
         */
         public TabA findTabAById(Long id) {
                 return (TabA) getSqlMapClientTemplate().queryForObject( "tab_a.findById",id);
        }
}

 

B的DAO和A类似，就不写了。

 

/**
* 测试JOTM的Service
*
* @author leizhimin 2009-6-25 12:53:55
*/
public interface StuJotmService {
         /**
         * 同时保存TabA、TabB
         *
         * @param a TabA对象
         * @param b TabB对象
         */
         void saveAB(TabA a, TabB b);

         /**
         * 同时更新TabA、TabB
         *
         * @param a TabA对象
         * @param b TabB对象
         */
         void updateAB(TabA a, TabB b);

         /**
         * 删除指定id的TabA、TabB记录
         *
         * @param id 指定id
         */
         void deleteABif(Long id);
}

 

/**
* Created by IntelliJ IDEA.
*
* @author leizhimin 2009-6-25 12:58:48
*/
//@Transactional
public class StuJotmServiceImpl implements StuJotmService {
         private TabADAO tabADAO;
         private TabBDAO tabBDAO;

         /**
         * 同时保存TabA、TabB
         *
         * @param a TabA对象
         * @param b TabB对象
         */
//        @Transactional(readOnly=false)
         public void saveAB(TabA a, TabB b) {
                tabADAO.saveTabA(a);
                tabBDAO.saveTabB(b);
        }

         /**
         * 同时更新TabA、TabB
         *
         * @param a TabA对象
         * @param b TabB对象
         */
//        @Transactional(readOnly=false)
         public void updateAB(TabA a, TabB b) {
                tabADAO.updateTabA(a);
                tabBDAO.updateTabB(b);
        }

         /**
         * 删除指定id的TabA、TabB记录
         *
         * @param id 指定id
         */
//        @Transactional(readOnly=false)
         public void deleteABif(Long id) {
                tabADAO.deleteTabAById(id);
                tabBDAO.deleteTabBById(id);
        }

         public void setTabADAO(TabADAO tabADAO) {
                 this.tabADAO = tabADAO;
        }

         public void setTabBDAO(TabBDAO tabBDAO) {
                 this.tabBDAO = tabBDAO;
        }
}

 

/**
* Spring上下文工具
*
* @author leizhimin 2008-8-13 14:42:58
*/

public class ApplicationContextUtil {
         private static ApplicationContext applicationContext;

         static {
                 if (applicationContext == null)
                        applicationContext = rebuildApplicationContext();
        }

         /**
         * 重新构建Spring应用上下文环境
         *
         * @return ApplicationContext
         */
         public static ApplicationContext rebuildApplicationContext() {
                 return new ClassPathXmlApplicationContext( "/ApplicationContext.xml");
        }

         /**
         * 获取Spring应用上下文环境
         *
         * @return
         */
         public static ApplicationContext getApplicationContext() {
                 return applicationContext;
        }

         /**
         * 简单的上下文环境测试
         */
         public static void main(String[] args) {
                rebuildApplicationContext();
                 if (applicationContext == null) {
                        System.out.println( "ApplicationContext is null");
                } else {
                        System.out.println( "ApplicationContext is not null!");
                }
        }
}

 

三、做JTOM、Spring、iBatis、Log4j等配置

 

JOTM配置：carol.properties

#JNDI调用协议
carol.protocols=jrmp
#不使用CAROL JNDI封装器        
carol.start.jndi=false
#不启动命名服务器
carol.start.ns=false

 

Spring配置：ApplicationContext.xml

<? xml version ="1.0" encoding ="UTF-8" ?>
<!-- 局部单元测试使用，不正式发布，不要删除 -->
< beans xmlns ="http://www.springframework.org/schema/beans"
             xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:jee ="http://www.springframework.org/schema/jee"
             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/jee http://www.springframework.org/schema/jee/spring-jee-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" >

        <!-- 指定Spring配置中用到的属性文件-->
         < bean id ="propertyConfig"
                     class ="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >
                 < property name ="locations" >
                         < list >
                                 < value >classpath:jdbc.properties </ value >
                         </ list >
                 </ property >
         </ bean >
        <!-- JOTM实例 -->
         < bean id ="jotm" class ="org.springframework.transaction.jta.JotmFactoryBean" />
        <!-- JTA事务管理器 -->
         < bean id ="myJtaManager"
                     class ="org.springframework.transaction.jta.JtaTransactionManager" >
                 < property name ="userTransaction" >
                         < ref local ="jotm" />
                 </ property >
         </ bean >
        <!-- 数据源A -->
         < bean id ="dataSourceA" class ="org.enhydra.jdbc.pool.StandardXAPoolDataSource" destroy-method ="shutdown" >
                 < property name ="dataSource" >
                         < bean class ="org.enhydra.jdbc.standard.StandardXADataSource" destroy-method ="shutdown" >
                                 < property name ="transactionManager" ref ="jotm" />
                                 < property name ="driverName" value ="${jdbc.driver}" />
                                 < property name ="url" value ="${jdbc.url}" />
                         </ bean >
                 </ property >
                 < property name ="user" value ="${jdbc.username}" />
                 < property name ="password" value ="${jdbc.password}" />
         </ bean >
        <!-- 数据源B -->
         < bean id ="dataSourceB" class ="org.enhydra.jdbc.pool.StandardXAPoolDataSource" destroy-method ="shutdown" >
                 < property name ="dataSource" >
                         < bean class ="org.enhydra.jdbc.standard.StandardXADataSource" destroy-method ="shutdown" >
                                 < property name ="transactionManager" ref ="jotm" />
                                 < property name ="driverName" value ="${jdbc2.driver}" />
                                 < property name ="url" value ="${jdbc2.url}" />
                         </ bean >
                 </ property >
                 < property name ="user" value ="${jdbc2.username}" />
                 < property name ="password" value ="${jdbc.password}" />
         </ bean >
        <!-- 事务切面配置 -->
         < aop:config >
                 < aop:pointcut id ="serviceOperation"
                                             expression ="execution(* *..servi1ce*..*(..))" />
                 < aop:advisor pointcut-ref ="serviceOperation"
                                         advice-ref ="txAdvice" />
         </ aop:config >
        <!-- 通知配置 -->
         < tx:advice id ="txAdvice" transaction-manager ="myJtaManager" >
                 < tx:attributes >
                         < tx:method name ="delete*" rollback-for ="Exception" />
                         < tx:method name ="save*" rollback-for ="Exception" />
                         < tx:method name ="update*" rollback-for ="Exception" />
                         < tx:method name ="*" read-only ="true" rollback-for ="Exception" />
                 </ tx:attributes >
         </ tx:advice >

        <!-- 根据dataSourceA和sql-map-config_A.xml创建一个SqlMapClientA-->
         < bean id ="sqlMapClientA"
                     class ="org.springframework.orm.ibatis.SqlMapClientFactoryBean" >
                 < property name ="dataSource" >
                         < ref local ="dataSourceA" />
                 </ property >
                 < property name ="configLocation" >
                         < value >sql-map-config_A.xml </ value >
                 </ property >
         </ bean >
        <!-- 根据dataSourceB和sql-map-config_B.xml创建一个SqlMapClientB-->
         < bean id ="sqlMapClientB"
                     class ="org.springframework.orm.ibatis.SqlMapClientFactoryBean" >
                 < property name ="dataSource" >
                         < ref local ="dataSourceB" />
                 </ property >
                 < property name ="configLocation" >
                         < value >sql-map-config_B.xml </ value >
                 </ property >
         </ bean >
        <!-- 根据sqlMapClientA创建一个SqlMapClientTemplate的模版类实例sqlMapClientTemplateA-->
         < bean id ="sqlMapClientTemplateA"
                     class ="org.springframework.orm.ibatis.SqlMapClientTemplate" >
                 < property name ="sqlMapClient" ref ="sqlMapClientA" />
         </ bean >
        <!-- 根据sqlMapClientB创建一个SqlMapClientTemplate的模版类实例sqlMapClientTemplateB-->
         < bean id ="sqlMapClientTemplateB"
                     class ="org.springframework.orm.ibatis.SqlMapClientTemplate" >
                 < property name ="sqlMapClient" ref ="sqlMapClientB" />
         </ bean >

        <!-- 配置DAO，并注入所使用的sqlMapClientTemplate实例 -->
         < bean id ="tabADAO" class ="com.lavasoft.stu.jtom.dao.impl.TabADAOImpl" >
                 < property name ="sqlMapClientTemplate" ref ="sqlMapClientTemplateA" />
         </ bean >
         < bean id ="tabBDAO" class ="com.lavasoft.stu.jtom.dao.impl.TabBDAOImpl" >
                 < property name ="sqlMapClientTemplate" ref ="sqlMapClientTemplateB" />
         </ bean >

        <!-- Service配置，注入DAO -->
         < bean id ="stuJotmService" class ="com.lavasoft.stu.jtom.service.StuJotmServiceImpl" >
                 < property name ="tabADAO" ref ="tabADAO" />
                 < property name ="tabBDAO" ref ="tabBDAO" />
         </ bean >
</ beans >

 

数据库配置：jdbc.properties

jdbc.database=cms_release
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.0.2:3306/testdb_a?useUnicode=true&characterEncoding=utf8&autoReconnect=true&zeroDateTimeBehavior=convertToNull
jdbc.username=root
jdbc.password=leizhimin

jdbc2.database=cms_release
jdbc2.driver=com.mysql.jdbc.Driver
jdbc2.url=jdbc:mysql://192.168.0.1:3306/testdb_b?useUnicode=true&characterEncoding=utf8&autoReconnect=true&zeroDateTimeBehavior=convertToNull
jdbc2.username=root
jdbc2.password=leizhimin

 

iBatis的SQLMap配置：

sql-map-config_A.xml

<? xml version ="1.0" encoding ="UTF-8" ?>
<!DOCTYPE sqlMapConfig
                PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"
                "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">

< sqlMapConfig >
         < settings cacheModelsEnabled ="true" enhancementEnabled ="true"
                             lazyLoadingEnabled ="true" errorTracingEnabled ="true"
                             useStatementNamespaces ="true" />

         < sqlMap resource ="com/lavasoft/stu/jtom/entity/sqlmap/TabA.xml" />

</ sqlMapConfig >

 

sql-map-config_B.xml

<? xml version ="1.0" encoding ="UTF-8" ?>
<!DOCTYPE sqlMapConfig
                PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"
                "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">

< sqlMapConfig >
         < settings cacheModelsEnabled ="true" enhancementEnabled ="true"
                             lazyLoadingEnabled ="true" errorTracingEnabled ="true"
                             useStatementNamespaces ="true" />

         < sqlMap resource ="com/lavasoft/stu/jtom/entity/sqlmap/TabB.xml" />

</ sqlMapConfig >

 

日志的配置：log4j.properties

log4j.rootLogger=INFO,CONSOLE,LOGFILE

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=INFO
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss } - %-5p %c        %x - %m%n

log4j.appender.LOGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.LOGFILE.File=contestlog.log
log4j.appender.LOGFILE.MaxFileSize=500KB
log4j.appender.LOGFILE.MaxBackupIndex=10
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss } -    %-p %c     %x - %m%n

log4j.logger.com.ibatis=INFO
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=INFO
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=INFO
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=INFO
log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=INFO,CONSOLE
log4j.logger.java.sql.PreparedStatement=INFO,CONSOLE

 

四、测试

 

public class Test {
         private static ApplicationContext ctx = ApplicationContextUtil.getApplicationContext();
         private static StuJotmService ser = (StuJotmService) ctx.getBean( "stuJotmService");

         public static void test_() {
                TabA a = new TabA();
                a.setId(1L);
                a.setName( "aaa");
                a.setAddress( "address a");
                TabB b = new TabB();
                b.setId(1L);
                b.setName( "bbb");
                b.setAddress( "address b");
                ser.saveAB(a, b);
        }

         public static void main(String[] args) {
                test_();
        }
}

 

然后将主键其中一个改掉进行测试，让另外一个主键重复，发现a、b数据库均不能成功写入，经过多次测试，验证jtom真正实现了分布式事务的管理。

 

终于粘贴完了，周末愉快~！

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