Spring boot + atomikos 多数据源处理及事物处理
1.pom文件
com.atomikos transactions 4.0.6 com.atomikos transactions-api 4.0.6 com.atomikos transactions-jta 4.0.6 com.atomikos transactions-jdbc 4.0.6 com.atomikos atomikos-util 4.0.6 javax.transaction javax.transaction-api 1.2
2. aplication.properties
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.url=jdbc:mysql:///test2?useUnicode=true&useSSL=false&characterEncoding=utf8 spring.datasource.username=xxxx spring.datasource.password=xxxxx spring.datasource.driver-class-name=com.mysql.jdbc.Driver #ds1,ds2 其他两个数据源 slave.datasource.names=ds1,ds2 #ds1 slave.datasource.ds1.driver=com.mysql.jdbc.Driver slave.datasource.ds1.url=jdbc:mysql:///lottery?useUnicode=true&useSSL=false&characterEncoding=utf8 slave.datasource.ds1.username=xxxxx slave.datasource.ds1.password=xxxxx #ds2 slave.datasource.ds2.driver=com.mysql.jdbc.Driver slave.datasource.ds2.url=jdbc:mysql://localhost:3306/test?useUnicode=true&useSSL=false&characterEncoding=utf8 slave.datasource.ds2.username=root slave.datasource.ds2.password=root
3.DbConfig 实体类
import java.io.Serializable;
@Data
public class DbConfig implements Serializable{
private static final long serialVersionUID = 1L;
private String url;
private String username;
private String password;
}
4. 配置数据源 DataSourceConfig 链接主库
package com.spf.boot.atomikos.db;
import com.atomikos.jdbc.AtomikosDataSourceBean;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import javax.sql.DataSource;
/**
* atomikos 分布式数据源
*/
@Configuration
@MapperScan(basePackages = {"com.spf.boot.mapper.ds"}, sqlSessionTemplateRef = "masterSqlSessionTemplate")
public class DataSourceConfig {
@Bean("dbConfig")
@ConfigurationProperties(prefix = "spring.datasource")
public DbConfig getDbConfig() {
return new DbConfig();
}
//**************************************************************************************************************************************************
//配置数据源
@Primary
@Bean(name="datasource")
public DataSource Datasource(@Qualifier("dbConfig") DbConfig config1) {
MysqlXADataSource mysqlXADataSource=new MysqlXADataSource();
mysqlXADataSource.setUrl(config1.getUrl());
mysqlXADataSource.setPinGlobalTxToPhysicalConnection(true);
mysqlXADataSource.setPassword(config1.getPassword());
mysqlXADataSource.setUser(config1.getUsername());
AtomikosDataSourceBean atomikosDataSourceBean=new AtomikosDataSourceBean();
atomikosDataSourceBean.setXaDataSource(mysqlXADataSource);
atomikosDataSourceBean.setUniqueResourceName("datasource");
// atomikosDataSourceBean.setMinPoolSize(config1.getMinPoolSize());
// atomikosDataSourceBean.setMaxPoolSize(config1.getMaxPoolSize());
// atomikosDataSourceBean.setMaxLifetime(config1.getMaxLifetime());
// atomikosDataSourceBean.setBorrowConnectionTimeout(config1.getBorrowConnectionTimeout());
// atomikosDataSourceBean.setLoginTimeout(config1.getLoginTimeout());
// atomikosDataSourceBean.setMaintenanceInterval(config1.getMaintenanceInterval());
// atomikosDataSourceBean.setMaxIdleTime(config1.getMaxIdleTime());
return atomikosDataSourceBean;
}
//**************************************************************************************************************************************************
// @Bean(name="primaryJdbcTemplate")
// public JdbcTemplate primaryJdbcTemplate(@Qualifier("datasource")DataSource dataSource) {
// return new JdbcTemplate(dataSource);
// }
@Bean(name = "sqlSessionFactory")
@Primary
public SqlSessionFactory sqlSessionFactory(@Qualifier("datasource")DataSource dataSource) throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
//添加XML目录
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath*:mybatis/xml/*Mapper.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean(name = "masterSqlSessionTemplate")
@Primary
public SqlSessionTemplate sqlSessionTemplate(@Qualifier("sqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
5. 配置从库数据链接 DataDs1Source
package com.spf.boot.atomikos.db;
import com.atomikos.jdbc.AtomikosDataSourceBean;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.sql.DataSource;
import java.io.IOException;
/**
* @author ShuPF
* @类说明：
* @date 2018-12-27 14:42
*/
@Configuration
@MapperScan(basePackages = {"com.spf.boot.mapper.ds1"}, sqlSessionTemplateRef = "ds1SqlSessionTemplate")
public class DataDs1Source {
@Bean("db1Config")
@ConfigurationProperties(prefix = "slave.datasource.ds1")
public DbConfig getDb2Config() {
return new DbConfig();
}
//配置数据源
@Bean(name="datasourceDs1")
public DataSource datasourceDs1(@Qualifier("db1Config") DbConfig config1) {
MysqlXADataSource mysqlXADataSource=new MysqlXADataSource();
mysqlXADataSource.setUrl(config1.getUrl());
mysqlXADataSource.setPinGlobalTxToPhysicalConnection(true);
mysqlXADataSource.setPassword(config1.getPassword());
mysqlXADataSource.setUser(config1.getUsername());
AtomikosDataSourceBean atomikosDataSourceBean=new AtomikosDataSourceBean();
atomikosDataSourceBean.setXaDataSource(mysqlXADataSource);
atomikosDataSourceBean.setUniqueResourceName("datasourceDs1");
// atomikosDataSourceBean.setMinPoolSize(config1.getMinPoolSize());
// atomikosDataSourceBean.setMaxPoolSize(config1.getMaxPoolSize());
// atomikosDataSourceBean.setMaxLifetime(config1.getMaxLifetime());
// atomikosDataSourceBean.setBorrowConnectionTimeout(config1.getBorrowConnectionTimeout());
// atomikosDataSourceBean.setLoginTimeout(config1.getLoginTimeout());
// atomikosDataSourceBean.setMaintenanceInterval(config1.getMaintenanceInterval());
// atomikosDataSourceBean.setMaxIdleTime(config1.getMaxIdleTime());
return atomikosDataSourceBean;
}
// @Bean(name="ds1JdbcTemplate")
// public JdbcTemplate ds1JdbcTemplate(@Qualifier("datasourceDs1")DataSource dataSource) {
// return new JdbcTemplate(dataSource);
// }
@Bean(name = "ds1SqlSessionFactory")
public SqlSessionFactory ds1SqlSessionFactory(@Qualifier("datasourceDs1")DataSource dataSource) throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
//添加XML目录
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath*:mybatis/xml/*Mapper.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean(name = "ds1SqlSessionTemplate")
public SqlSessionTemplate sqlSessionTemplate(@Qualifier("ds1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
6. DataDs2Source
package com.spf.boot.atomikos.db;
import com.atomikos.jdbc.AtomikosDataSourceBean;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.sql.DataSource;
/**
* @author ShuPF
* @类说明：
* @date 2018-12-27 14:42
*/
@Configuration
@MapperScan(basePackages = {"com.spf.boot.mapper.ds2"}, sqlSessionTemplateRef = "ds2SqlSessionTemplate")
public class DataDs2Source {
@Bean("db2Config")
@ConfigurationProperties(prefix = "slave.datasource.ds2")
public DbConfig getDb3Config() {
return new DbConfig();
}
//配置数据源
@Bean(name="datasourceDs2")
public DataSource datasourceDs2(@Qualifier("db2Config") DbConfig config1) {
MysqlXADataSource mysqlXADataSource=new MysqlXADataSource();
mysqlXADataSource.setUrl(config1.getUrl());
mysqlXADataSource.setPinGlobalTxToPhysicalConnection(true);
mysqlXADataSource.setPassword(config1.getPassword());
mysqlXADataSource.setUser(config1.getUsername());
AtomikosDataSourceBean atomikosDataSourceBean=new AtomikosDataSourceBean();
atomikosDataSourceBean.setXaDataSource(mysqlXADataSource);
atomikosDataSourceBean.setUniqueResourceName("datasourceDs2");
// atomikosDataSourceBean.setMinPoolSize(config1.getMinPoolSize());
// atomikosDataSourceBean.setMaxPoolSize(config1.getMaxPoolSize());
// atomikosDataSourceBean.setMaxLifetime(config1.getMaxLifetime());
// atomikosDataSourceBean.setBorrowConnectionTimeout(config1.getBorrowConnectionTimeout());
// atomikosDataSourceBean.setLoginTimeout(config1.getLoginTimeout());
// atomikosDataSourceBean.setMaintenanceInterval(config1.getMaintenanceInterval());
// atomikosDataSourceBean.setMaxIdleTime(config1.getMaxIdleTime());
return atomikosDataSourceBean;
}
// @Bean(name="ds2JdbcTemplate")
// public JdbcTemplate ds2JdbcTemplate(@Qualifier("datasourceDs2")DataSource dataSource) {
// return new JdbcTemplate(dataSource);
// }
@Bean(name = "ds2SqlSessionFactory")
public SqlSessionFactory ds2SqlSessionFactory(@Qualifier("datasourceDs2")DataSource dataSource) throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
//添加XML目录
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath*:mybatis/xml/*Mapper.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean(name = "ds2SqlSessionTemplate")
public SqlSessionTemplate sqlSessionTemplate(@Qualifier("ds2SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
return new SqlSessionTemplate(sqlSessionFactory);
}
}
7. 配置多数据源事物的处理
package com.spf.boot.atomikos;
import com.atomikos.icatch.jta.UserTransactionImp;
import com.atomikos.icatch.jta.UserTransactionManager;
import org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.interceptor.TransactionInterceptor;
import org.springframework.transaction.jta.JtaTransactionManager;
import javax.transaction.SystemException;
import java.util.Properties;
/***
* 分布式事物管理
*/
@Configuration
public class AutoProxyRegist {
@Bean(name="atomikosTransactionManager",initMethod="init",destroyMethod="close")
public UserTransactionManager userTransactionManager(){
UserTransactionManager transactionManager = new UserTransactionManager();
transactionManager.setForceShutdown(false);
return transactionManager;
}
@Bean(name="atomikosUserTransaction")
public UserTransactionImp userTransactionImp() throws SystemException {
UserTransactionImp transactionImp = new UserTransactionImp();
transactionImp.setTransactionTimeout(120);
return transactionImp;
}
@Bean("springTransactionManager")
public JtaTransactionManager transactionManager(
@Qualifier("atomikosTransactionManager") UserTransactionManager transactionManager,
@Qualifier("atomikosUserTransaction") UserTransactionImp userTransaction) {
JtaTransactionManager jtaTM = new JtaTransactionManager();
jtaTM.setTransactionManager(transactionManager);
jtaTM.setUserTransaction(userTransaction);
jtaTM.setAllowCustomIsolationLevels(true);
return jtaTM;
}
@Bean(name = "txAdvice")
public TransactionInterceptor getAdvisor(@Qualifier("springTransactionManager") JtaTransactionManager txManager)
throws Exception {
TransactionInterceptor tsi = new TransactionInterceptor();
Properties properties = new Properties();
properties.setProperty("get*", "PROPAGATION_SUPPORTS");
properties.setProperty("select*", "PROPAGATION_SUPPORTS");
properties.setProperty("load*", "PROPAGATION_SUPPORTS");
properties.setProperty("query*", "PROPAGATION_SUPPORTS");
properties.setProperty("list*", "PROPAGATION_SUPPORTS");
properties.setProperty("add*", "PROPAGATION_REQUIRED");
properties.setProperty("insert*", "PROPAGATION_REQUIRED");
properties.setProperty("save*", "PROPAGATION_REQUIRED");
properties.setProperty("update*", "PROPAGATION_REQUIRED");
properties.setProperty("modify*", "PROPAGATION_REQUIRED");
properties.setProperty("do*", "PROPAGATION_REQUIRED");
properties.setProperty("del*", "PROPAGATION_REQUIRED");
properties.setProperty("remove*", "PROPAGATION_REQUIRED");
properties.setProperty("process*", "PROPAGATION_REQUIRED");
properties.setProperty("create*", "PROPAGATION_REQUIRED");
properties.setProperty("valid*", "PROPAGATION_REQUIRED");
properties.setProperty("do*", "PROPAGATION_REQUIRED");
properties.setProperty("write*", "PROPAGATION_REQUIRED");
properties.setProperty("cancel*", "PROPAGATION_REQUIRED");
properties.setProperty("*", "readOnly");
tsi.setTransactionAttributes(properties);
tsi.setTransactionManager(txManager);
return tsi;
}
@Bean
public BeanNameAutoProxyCreator txProxy() {
BeanNameAutoProxyCreator creator = new BeanNameAutoProxyCreator();
creator.setInterceptorNames("txAdvice");
creator.setBeanNames("*ServiceImpl");
creator.setProxyTargetClass(true);
return creator;
}
}
8 mapper层根据上面映射建立三个，不同的文件夹处理不同的数据库
9. servicec层
此处的每个方法都是支持事物的，在前面AutoProxyRegist类已经配置，以insert开头的方法支持事物的
至此完工！