第一步 引入 jar 包
<!-- 引入父类工程 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.0.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency>第二步 创建普通的 bean
public class Emp {
private Integer eid;
private String ename;
private String sex;
get set 方法
}
第三步将两个 数据源交给 atonikos 进行事务管理
第一个数据源 test01
package com.springboot_mybatis_ManyDatasource.Datasource;
import javax.sql.DataSource;
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.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
@Configuration //注册到 spring 容器中
@MapperScan(basePackages="com.springboot_mybatis_ManyDatasource.Test01Mapper",sqlSessionFactoryRef="test1SqlSessionFactory")
public class DataSource1Config {
@Value("${spring.datasource.test01.url}")
private String url;
@Value("${spring.datasource.test01.username}")
private String password;
@Value("${spring.datasource.test01.password}")
private String username;
@Bean(name="test1DataSource") //将自定义的数据源注册到 spring 容器中
@Primary //默认数据源
@ConfigurationProperties(prefix="spring.datasource.test01")
public DataSource testDataSource(){
MysqlXADataSource mysqlXADataSource = new MysqlXADataSource();
mysqlXADataSource.setURL(url);
mysqlXADataSource.setPassword(password);
mysqlXADataSource.setUser(username);
System.err.println(url);
AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();
xaDataSource.setXaDataSource(mysqlXADataSource);
xaDataSource.setUniqueResourceName("test1DataSource");
return xaDataSource;
}
@Bean(name="test1SqlSessionFactory")
@Primary //默认数据源
public SqlSessionFactory testSqlSessionFactory(@Qualifier("test1DataSource")DataSource dataSource)
throws Exception{
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
bean.setDataSource(dataSource);
return bean.getObject();
}
@Bean(name="test1SqlSessionTemplate")
@Primary //默认数据源
public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("test1SqlSessionFactory")SqlSessionFactory sqlSessionFactory)throws Exception{
return new SqlSessionTemplate(sqlSessionFactory);
}
}
第二个数据源 test02
package com.springboot_mybatis_ManyDatasource.Datasource;
import javax.sql.DataSource;
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.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
@Configuration //注册到 spring 容器中
@MapperScan(basePackages="com.springboot_mybatis_ManyDatasource.Test02Mapper",sqlSessionFactoryRef="test2SqlSessionFactory")
public class DataSource2Config {
@Value("${spring.datasource.test02.url}")
private String url;
@Value("${spring.datasource.test02.username}")
private String password;
@Value("${spring.datasource.test02.password}")
private String username;
@Bean(name="test2DataSource") //将自定义的数据源注册到 spring 容器中
@ConfigurationProperties(prefix="spring.datasource.test02")
public DataSource testDataSource(){
MysqlXADataSource mysqlXADataSource = new MysqlXADataSource();
mysqlXADataSource.setURL(url);
mysqlXADataSource.setPassword(password);
mysqlXADataSource.setUser(username);
AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();
xaDataSource.setXaDataSource(mysqlXADataSource);
xaDataSource.setUniqueResourceName("test2DataSource");
return xaDataSource;
}
@Bean(name="test2SqlSessionFactory")
public SqlSessionFactory testSqlSessionFactory(@Qualifier("test2DataSource")DataSource dataSource)
throws Exception{
SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
bean.setDataSource(dataSource);
return bean.getObject();
}
@Bean(name="test2SqlSessionTemplate")
public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("test2SqlSessionFactory")SqlSessionFactory sqlSessionFactory)throws Exception{
return new SqlSessionTemplate(sqlSessionFactory);
}
}
第四步 写 mapper 接口
//操作 Test01 数据源的 mapper 接口
package com.springboot_mybatis_ManyDatasource.Test01Mapper;
import java.util.List;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.data.repository.query.Param;
import com.springboot_mybatis_ManyDatasource.bean.Emp;
public interface EmpmapperTest01 {
//添加
@Insert(" insert into emp values(null,#{ename},#{sex}) ")
void saveEmp(Emp emp);
//删除
@Delete(" delete from emp where eid = #{eid} ")
void deleteEmp(@Param("eid")Integer eid);
//修改
@Update("update emp set ename = #{ename},sex=#{sex} where eid = #{eid}")
void updateEmp(Emp emp);
//查询
@Select("select * from emp")
List<Emp> selectEmp();
//根据 id 查询 Emp 数据
@Select(" select * from emp where eid = #{eid} ")
Emp getbyid(@Param("eid")Integer eid);
}
操作 Test02 数据源的 mapper 接口
package com.springboot_mybatis_ManyDatasource.Test02Mapper;
import java.util.List;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.data.repository.query.Param;
import com.springboot_mybatis_ManyDatasource.bean.Emp;
public interface EmpmapperTest02 {
//添加
@Insert(" insert into emp values(null,#{ename},#{sex}) ")
void saveEmp(Emp emp);
//删除
@Delete(" delete from emp where eid = #{eid} ")
void deleteEmp(@Param("eid")Integer eid);
//修改
@Update("update emp set ename = #{ename},sex=#{sex} where eid = #{eid}")
void updateEmp(Emp emp);
//查询
@Select("select * from emp")
List<Emp> selectEmp();
//根据 id 查询 Emp 数据
@Select(" select * from emp where eid = #{eid} ")
Emp getbyid(@Param("eid")Integer eid);
}
第五步写 mapper 接口对应的 service
Test01 mapper 接口所对应的 service
package com.springboot_mybatis_ManyDatasource.Test01Service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.springboot_mybatis_ManyDatasource.Test01Mapper.EmpmapperTest01;
import com.springboot_mybatis_ManyDatasource.bean.Emp;
@Service
public class EmpServiceTest01 {
@Autowired
private EmpmapperTest01 empmapperTest01;
//添加
public String saveEmp1(Emp emp){
empmapperTest01.saveEmp(emp);
return "success1";
}
//删除
public String deleteEmp1(Integer eid){
empmapperTest01.deleteEmp(eid);
return "success1";
}
//修改
public String updateEmp1(Emp emp){
empmapperTest01.updateEmp(emp);
return "success1";
}
//查询
public Emp getbyid1(Integer eid){
return empmapperTest01.getbyid(eid);
}
//查询所有
public List<Emp> EmpList1(){
return empmapperTest01.selectEmp();
}
}
Test02 mapper 接口所对应的 service
package com.springboot_mybatis_ManyDatasource.Test02Service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.springboot_mybatis_ManyDatasource.Test02Mapper.EmpmapperTest02;
import com.springboot_mybatis_ManyDatasource.bean.Emp;
@Service
public class EmpServiceTest02 {
@Autowired
private EmpmapperTest02 empmapperTest02;
//添加
public String saveEmp2(Emp emp){
empmapperTest02.saveEmp(emp);
return "success1";
}
//删除
public String deleteEmp2(Integer eid){
empmapperTest02.deleteEmp(eid);
return "success1";
}
//修改
public String updateEmp2(Emp emp){
empmapperTest02.updateEmp(emp);
return "success1";
}
//查询
public Emp getbyid2(Integer eid){
return empmapperTest02.getbyid(eid);
}
//查询所有
public List<Emp> EmpList2(){
return empmapperTest02.selectEmp();
}
}
第六步控制层 controller
package com.springboot_mybatis_ManyDatasource.controller;
import java.util.List;
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 com.springboot_mybatis_ManyDatasource.Test01Service.EmpServiceTest01;
import com.springboot_mybatis_ManyDatasource.Test02Service.EmpServiceTest02;
import com.springboot_mybatis_ManyDatasource.bean.Emp;
@Controller
public class EmpController {
@Autowired
private EmpServiceTest01 empServiceTest01;
@Autowired
private EmpServiceTest02 empServiceTest02;
//************************* 操作 Test01 数据库 ***********************************************************
//添加 EmpTest1
@RequestMapping("/saveEmp1")
@ResponseBody
public String saveEmp1(Emp emp){
empServiceTest01.saveEmp1(emp);
return "success1";
}
//修改 EmpTest1
@RequestMapping("/updateEmp1")
@ResponseBody
public String updateEmp1(Emp emp){
empServiceTest01.updateEmp1(emp);
return "success1";
}
//删除 EmpTest1
@RequestMapping("/deleteEmp1")
@ResponseBody
public String deleteEmp1(Integer eid){
empServiceTest02.deleteEmp2(eid);
empServiceTest01.deleteEmp1(eid);
return "success1";
}
//根据 eid 查询 EmpTest1
@RequestMapping("/getbyid1")
@ResponseBody
public Emp getbyid1(Integer eid){
System.err.println(eid);
return empServiceTest01.getbyid1(eid);
}
//查询所有的用户 EmpTest1
@RequestMapping("/EmpList1")
@ResponseBody
public List<Emp> EmpList1(){
return empServiceTest01.EmpList1();
}
//************************* 操作 Test02 数据库 ***********************************************************
//添加 EmpTest2
@RequestMapping("/saveEmp2")
@ResponseBody
public String saveEmp2(Emp emp){
empServiceTest02.saveEmp2(emp);
return "success2";
}
//修改 EmpTest2
@RequestMapping("/updateEmp2")
@ResponseBody
public String updateEmp2(Emp emp){
empServiceTest02.updateEmp2(emp);
return "success2";
}
//删除 EmpTest2
@RequestMapping("/deleteEmp2")
@ResponseBody
public String deleteEmp2(Integer eid){
empServiceTest02.deleteEmp2(eid);
return "success2";
}
//根据 eid 查询 EmpTest2
@RequestMapping("/getbyid2")
@ResponseBody
public Emp getbyid2(Integer eid){
System.err.println(eid);
return empServiceTest02.getbyid2(eid);
}
//查询所有的用户 EmpTest2
@RequestMapping("/EmpList2")
@ResponseBody
public List<Emp> EmpList2(){
return empServiceTest02.EmpList2();
}
}
第七步 启动 springboot mybatis atonikos 项目
package com.springboot_mybatis_ManyDatasource.RunData;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
//扫描 controller 控制层
@ComponentScan(basePackages={
"com.springboot_mybatis_ManyDatasource.controller",
"com.springboot_mybatis_ManyDatasource.Datasource",
"com.springboot_mybatis_ManyDatasource.Test01Service",
"com.springboot_mybatis_ManyDatasource.Test02Service"})
//扫描 dao 包下的 mapper 接口
@MapperScan(basePackages={
"com.springboot_mybatis_ManyDatasource.Test01Mapper",
"com.springboot_mybatis_ManyDatasource.Test02Mapper"})
@EnableAutoConfiguration
public class RunData {
public static void main(String[] args) {
SpringApplication.run(RunData.class, args);
}
}