[Java知识库]SpringBoot+Druid

SpringBoot+Druid

依赖引入

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
    <version>1.2.8</version>
</dependency>

Druid 多数据源配置

• 配置文件配置

  • spring:
      datasource:
        url: jdbc://mysql:192.168.137.127:3306/test
        username: root
        password: root
        driver-class-name: com.mysql.cj.jdbc.Driver
        druid:
          one:
            initial-size: 1
            max-active: 20
            min-idle: 1
            max-wait: 6000
            pool-prepared-statements: true
            max-pool-prepared-statement-per-connection-size: 20
            #max-open-prepared-statements: 和上方属性一样
            validation-query: "select 1 from dual"
            validation-query-timeout: 10000
            test-on-borrow: false
            test-on-return: false
            test-while-idle: true
            time-between-eviction-runs-millis: 60000
            min-evictable-idle-time-millis: 300000
            max-evictable-idle-time-millis: 600000
            filters: "stat,wall"
            async-init: true
          two:
            url: jdbc://mysql:192.168.137.126:3306/test
            username: root
            password: root
            driver-class-name: com.mysql.cj.jdbc.Driver
            initial-size: 1
            max-active: 20
            min-idle: 1
            max-wait: 6000
            pool-prepared-statements: true
            max-pool-prepared-statement-per-connection-size: 20
            #max-open-prepared-statements: 和上方属性一样
            validation-query: "select 1 from dual"
            validation-query-timeout: 10000
            test-on-borrow: false
            test-on-return: false
            test-while-idle: true
            time-between-eviction-runs-millis: 60000
            min-evictable-idle-time-millis: 300000
            max-evictable-idle-time-millis: 600000
            filters: "stat,wall"
            async-init: true
    

• 配置类

  • @Configuration
    public class DataSourceConfig {
    	//当不指定数据源时使用该数据源
        @Bean
        @Primary
        @ConfigurationProperties("spring.datasource.druid.one")
        public DataSource dataSource(){
            return DruidDataSourceBuilder.create().build();
        }
        @Bean
        @ConfigurationProperties("spring.datasource.druid.two")
        public DataSource dataSourceTwo(){
            return DruidDataSourceBuilder.create().build();
        }
    }
    

• 数据源注入

  • @RestController
    public class HelloWordController {
        //注入指定数据源
        @Resource(name = "dataSourceTwo")
        private DataSource dataSource;
        @Resource
        private SayService sayService;
        @RequestMapping("/hello/{name}")
        public String sayHello(@PathVariable("name") String name) {
            return sayService.say("hello "+name);
        }
    }