5分鐘學(xué)會springboot整合多數(shù)據(jù)源

一、前言

springboot整合多數(shù)據(jù)源 (采用分包策略)票腰。
在此記錄下，分享給大家女气。

二杏慰、springboot整合多數(shù)據(jù)源

1、pom文件依賴引入

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath />
    </parent>

    <dependencies>
        <!-- SpringBoot 測試 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- mybatis 支持 SpringBoot -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.1.1</version>
        </dependency>

        <!-- mysql 驅(qū)動 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>

        <!-- SpringBoot web組件 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

2、 application.yml 新增配置

spring:
  datasource:
  ## 用戶數(shù)據(jù)庫
    user:
      jdbc-url: jdbc:mysql://127.0.0.1:3306/yys_user
      username: root
      password: 123456
      driver-class-name: com.mysql.jdbc.Driver
  ## 訂單數(shù)據(jù)庫
    order:
      jdbc-url: jdbc:mysql://127.0.0.1:3306/yys_order
      username: root
      password: 123456.
      driver-class-name: com.mysql.jdbc.Driver

3缘滥、userDataSourceConfig.java

/**
 * 用戶數(shù)據(jù)源
 *      Config
 * @author yys
 */
@Configuration
@MapperScan(basePackages = "com.yys.user", sqlSessionTemplateRef = "userSqlSessionTemplate")
public class UserDataSourceConfig {

    /**
     * 創(chuàng)建 DataSource
     * @return
     */
    @Bean("userDataSource")
    @ConfigurationProperties("spring.datasource.user")
    public DataSource userDataSource() {
        return DataSourceBuilder.create().build();
    }

    /**
     * 創(chuàng)建 SQL會話工廠
     * @param dataSource
     * @return
     * @throws Exception
     */
    @Bean("userSqlSessionFactory")
    public SqlSessionFactory userSqlSessionFactory(@Qualifier("userDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
        return sqlSessionFactoryBean.getObject();
    }

    /**
     * 創(chuàng)建 事務(wù)管理器
     * @param dataSource
     * @return
     */
    @Bean("userTransactionManager")
    public DataSourceTransactionManager userTransactionManager(@Qualifier("userDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    /**
     * 創(chuàng)建用戶 SqlSession模板
     * @param sqlSessionFactory
     * @return
     */
    @Bean("userSqlSessionTemplate")
    public SqlSessionTemplate userSqlSessionTemplate(@Qualifier("userSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

4轰胁、orderDataSourceConfig.java

/**
 * 訂單數(shù)據(jù)源
 *      Config
 * @author yys
 */
@Configuration
@MapperScan(basePackages = "com.yys.order", sqlSessionTemplateRef = "orderSqlSessionTemplate")
public class OrderDataSourceConfig {

    /**
     * 創(chuàng)建 DataSource
     * @return
     */
    @Bean("orderDataSource")
    @ConfigurationProperties("spring.datasource.order")
    public DataSource orderDataSource() {
        return DataSourceBuilder.create().build();
    }

    /**
     * 創(chuàng)建 SQL會話工廠
     * @param dataSource
     * @return
     * @throws Exception
     */
    @Bean("orderSqlSessionFactory")
    public SqlSessionFactory orderSqlSessionFactory(@Qualifier("orderDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
        return sqlSessionFactoryBean.getObject();
    }

    /**
     * 創(chuàng)建 事務(wù)管理器
     * @param dataSource
     * @return
     */
    @Bean("orderTransactionManager")
    public DataSourceTransactionManager orderTransactionManager(@Qualifier("orderDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    /**
     * 創(chuàng)建訂單 SqlSession模板
     * @param sqlSessionFactory
     * @return
     */
    @Bean("orderSqlSessionTemplate")
    public SqlSessionTemplate orderSqlSessionTemplate(@Qualifier("orderSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

5、MybatisController.java

/**
 * 多數(shù)據(jù)源測試
 *      Controller
 * @author yys
 */
@RestController
@RequestMapping("/add")
public class MybatisController {

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private OrderMapper orderMapper;

    /**
     * 新增用戶
     * @return
     */
    @RequestMapping("/user")
    public String addUser(String name, Integer age) {
        return userMapper.addUser(name, age) > 0 ? "addUser success" : "addUser fail";
    }

    /**
     * 新增訂單
     * @return
     */
    @RequestMapping("/order")
    public String addOrder(Double amount, String address) {
        return orderMapper.addOrder(amount, address) > 0 ? "addOrder success" : "addOrder fail";
    }

}

6朝扼、UserMapper.java

/**
 * 用戶管理
 *      Mapper
 * @author yys
 */
public interface UserMapper {

    @Insert("INSERT INTO user VALUES (NULL, #{name}, #{age}, 1, NOW(), NOW())")
    int addUser(@Param("name") String name, @Param("age") Integer age);

}

7赃阀、OrderMapper.java

/**
 * 訂單管理
 *      Mapper
 * @author yys
 */
public interface OrderMapper {

    // order為數(shù)據(jù)庫關(guān)鍵字，記得使用``
    @Insert("INSERT INTO `order` VALUES (NULL, #{amount}, #{address}, 1, NOW(), NOW())")
    int addOrder(@Param("amount") Double amount, @Param("address") String address);

}

8擎颖、啟動類

@SpringBootApplication
@MapperScan("com.yys.mapper")
public class YysApp {

    public static void main(String[] args) {
        SpringApplication.run(YysApp.class, args);
    }

}

9榛斯、初始化sql文件


-- Database：yys_user

DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` bigint(11) NOT NULL AUTO_INCREMENT COMMENT 'ID，自增列',
  `name` varchar(32) NOT NULL COMMENT '用戶名',
  `age` int(11) NOT NULL COMMENT '用戶年齡',
  `status` tinyint(2) NOT NULL DEFAULT '1' COMMENT '狀態(tài)：-1-刪除搂捧；1-正常驮俗；',
  `create_time` datetime NOT NULL COMMENT '創(chuàng)建時間',
  `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新時間',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4;

-- Database：yys_order

DROP TABLE IF EXISTS `order`;
CREATE TABLE `order` (
  `id` bigint(11) NOT NULL AUTO_INCREMENT COMMENT 'ID，自增列',
  `amount` double(11,2) NOT NULL COMMENT '訂單金額',
  `address` varchar(32) NOT NULL COMMENT '地址',
  `status` tinyint(2) NOT NULL DEFAULT '1' COMMENT '狀態(tài)：-1-刪除允跑；1-正常王凑；',
  `create_time` datetime NOT NULL COMMENT '創(chuàng)建時間',
  `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新時間',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4;

10、測試

http://localhost:8080/add/user?name=洞人&age=18

a聋丝、頁面結(jié)果 - 如下圖所示：

b索烹、數(shù)據(jù)庫結(jié)果 - 如下圖所示：

http://localhost:8080/add/order?amount=10.24&address=山頂

a、頁面結(jié)果 - 如下圖所示：

b弱睦、數(shù)據(jù)庫結(jié)果 - 如下圖所示：