多數據源的目的在於一個代碼模塊可調用多個數據庫的數據進行某些業務操做。mysql
MyBatis-Plus開發者寫了一個多數據源叫dynamic-datasource-spring-boot-starter,很是簡單易用。git
dynamic-datasource-spring-boot-starter文檔github
官方文檔部分截圖:
第三方集成的,基本上是目前比較主流的(用的比較多)。spring
<dependency> <groupId>com.baomidou</groupId> <artifactId>dynamic-datasource-spring-boot-starter</artifactId> <version>2.5.4</version> </dependency>
spring: datasource: dynamic: primary: db1 #設置默認的數據源,默認值爲master datasource: db1: #數據源db1 driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://127.0.0.1:3306/wordpress_master?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai username: root password: 123456 db2: #數據源db2 driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://127.0.0.1:3306/wordpress_slave?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai username: root password: 123456 type: com.alibaba.druid.pool.DruidDataSource 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 #Oracle須要打開註釋 #validation-query: SELECT 1 FROM DUAL test-while-idle: true test-on-borrow: false test-on-return: false stat-view-servlet: enabled: true url-pattern: /druid/* #login-username: admin #login-password: admin filter: stat: log-slow-sql: true slow-sql-millis: 1000 merge-sql: false wall: config: multi-statement-allow: true
若是控制檯不報錯且出現以下圖所示,就表示成功整合:sql
啓動主類須要排除Druid相關依賴,不然會出現以下錯誤:數據庫
*************************** APPLICATION FAILED TO START *************************** Description: Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to determine a suitable driver class
解決辦法,加上以下代碼便可:app
@SpringBootApplication(exclude = DruidDataSourceAutoConfigure.class)
本文部份內容來源個人博客。ide