SpringBoot2.1.9 多数据源Mybatis—JDBC配置

偏执的太偏执、 2023-07-01 13:54 26阅读 0赞

一、配置文件  
pom.xm

<dependency>
       <groupId>org.mybatis.spring.boot</groupId>
       <artifactId>mybatis-spring-boot-starter</artifactId>
    </dependency>
    <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>5.1.48</version>
       <scope>runtime</scope>
    </dependency>

application.yml

spring:
      application:
        name: double-datasource-mybatis-jdbc
      profiles:
        active: dev
     
      jackson:
        date-format: yyyy-MM-dd HH:mm:ss
        time-zone: GMT+8
     
      server:
        port: 8008
    
    mybatis:
      #mapper-locations: classpath*:mapper/*.xml
      type-aliases-package: com.mk.entity.*  # 注意：对应实体类的路径
      configuration:
          map-underscore-to-camel-case: true
    
    sys:
      one-mybatis:
          type: com.alibaba.druid.pool.DruidDataSource
          driver-class-name: com.mysql.jdbc.Driver
          url: jdbc:mysql://192.168.1.2:3307/testdb01?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
          username: root
          password: admin123
          druid:
            initial-size: 10
            max-active: 100
            min-idle: 10
            max-wait: 60000
            pool-prepared-statements: true
            max-pool-prepared-statement-per-connection-size: 20
            time-between-eviction-runs-millis: 60000
            min-evictable-idle-time-millis: 300000
            validation-query: SELECT 1 FROM DUAL
            test-while-idle: true
            test-on-borrow: false
            test-on-return: false
            filter:
              stat:
                log-slow-sql: true
                slow-sql-millis: 1000
                merge-sql: true
                enabled: true
              wall:
                config:
                  multi-statement-allow: true
            stat-view-servlet:
              enabled: false
      two-jdbc:
          type: com.alibaba.druid.pool.DruidDataSource
          driver-class-name: com.mysql.jdbc.Driver
          url: jdbc:mysql://192.168.1.2:3307/testdb02?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
          username: root
          password: admin123
          druid:
            initial-size: 10
            max-active: 100
            min-idle: 10
            max-wait: 60000
            pool-prepared-statements: true
            max-pool-prepared-statement-per-connection-size: 20
            time-between-eviction-runs-millis: 60000
            min-evictable-idle-time-millis: 300000
            validation-query: SELECT 1 FROM DUAL
            test-while-idle: true
            test-on-borrow: false
            test-on-return: false
            filter:
              stat:
                log-slow-sql: true
                slow-sql-millis: 1000
                merge-sql: true
                enabled: true
              wall:
                config:
                  multi-statement-allow: true
            stat-view-servlet:
              enabled: false

### 二、配置Configuration Bean ###

（1）第一个Mybatis数据源配置(主)

public class MybatisDataSourceConfig {
    
        @Primary
        @Bean
        @ConfigurationProperties(prefix = "sys.one-mybatis.datasource")
        public DataSourceProperties oneDataSourceProperties() {
            return new DataSourceProperties();
        }
    
        @Primary
        @Bean
        public DataSource oneDataSource(@Qualifier("oneDataSourceProperties") DataSourceProperties dataSourceProperties) {
    
            DataSource dataSource = dataSourceProperties.initializeDataSourceBuilder().build();
            return dataSource;
        }
    
        @Primary
        @Bean
        @ConfigurationProperties(prefix = "mybatis")
        public MybatisProperties oneMybatisProperties(){
            return new MybatisProperties();
        }
    
        @Primary
        @Bean
        public SqlSessionFactoryBean oneSqlSessionFactoryBean(@Qualifier("oneDataSource") DataSource dataSource,
                                                              @Qualifier("oneMybatisProperties")MybatisProperties mybatisProperties){
            SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
            bean.setDataSource(dataSource);
            bean.setMapperLocations(mybatisProperties.resolveMapperLocations());
            bean.setTypeAliasesPackage(mybatisProperties.getTypeAliasesPackage());
            bean.setConfigurationProperties(mybatisProperties.getConfigurationProperties());
            bean.setConfiguration(mybatisProperties.getConfiguration());
            bean.setConfigLocation(Optional.ofNullable(mybatisProperties.getConfigLocation()).map(location->{
                try {
                    ResourcePatternResolver resourceResolver = new PathMatchingResourcePatternResolver();
                    return resourceResolver.getResource(location);
                } catch (Exception var3) {
                    return null;
                }
            }).orElse(null));
            return bean;
        }
    
    
        @Primary
        @Bean
        public DataSourceTransactionManager oneTransactionManager(@Qualifier("oneDataSource") DataSource dataSource) {
    
            return new DataSourceTransactionManager(dataSource);
        }
    
        @Primary
        @Bean
        public SqlSessionTemplate oneSqlSessionTemplate(@Qualifier("oneSqlSessionFactoryBean") SqlSessionFactoryBean sqlSessionFactoryBean) throws Exception{
            return new SqlSessionTemplate(sqlSessionFactoryBean.getObject());
        }
     
    }

（2）第二个jdbc配置

public class JdbcDataSourceConfig {
    
        @Bean
        @ConfigurationProperties(prefix = "sys.jdbc-two")
        public DataSourceProperties jdbcDataSourceProperties(){
            return new DataSourceProperties();
        }
    
        @Bean
        public DataSource jdbcDataSource(@Autowired @Qualifier("jdbcDataSourceProperties") DataSourceProperties dataSourceProperties){
            DataSource dataSource = dataSourceProperties.initializeDataSourceBuilder().build();
            return dataSource;
        }
    
        @Bean
        public JdbcTemplate jdbcTemplate(@Autowired @Qualifier("jdbcDataSource") DataSource dataSource){
            
            return new JdbcTemplate(dataSource);
        }
    
        @Bean
        public DataSourceTransactionManager twoTransactionManager(@Autowired @Qualifier("jdbcDataSource") DataSource dataSource) {
    
            return new DataSourceTransactionManager(dataSource);
        }
    }

（3）导入配置

@Configuration
    @Import({MybatisDataSourceConfig.class, JdbcDataSourceConfig.class})
    public class DataSourceConfig {
     
    }

注意：去掉默认自动配置

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, JdbcTemplateAutoConfiguration.class, MybatisAutoConfiguration.class})
    public class Application {
    
        public static void main(String[] args) {
            SpringApplication.run(Application.class, args);
        }
    
    }