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电商后台项目需要访问的数据源

多数据源方法（读写分离）

方法1：jdk自带的dynamicdatasource

方法2：Mybatis 方式

方法3：dynamicdatasource框架

	<!--Druid连接池--><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.2.3</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>com.baomidou</groupId><artifactId>dynamic-datasource-spring-boot-starter</artifactId><version>3.5.0</version></dependency>

spring:datasource:dynamic:#设置默认的数据源或者数据源组,默认值即为masterprimary: master#严格匹配数据源,默认false. true未匹配到指定数据源时抛异常,false使用默认数据源strict: falsedatasource:master:url: jdbc:mysql://127.0.0.1:3306/datasource1?serverTimezone=UTC&useUnicode=true&characterEncoding=UTF8&useSSL=falseusername: rootpassword: 123456initial-size: 1min-idle: 1max-active: 20test-on-borrow: truedriver-class-name: com.mysql.cj.jdbc.Driverslave_1:url: jdbc:mysql://127.0.0.1:3306/datasource2?serverTimezone=UTC&useUnicode=true&characterEncoding=UTF8&useSSL=falseusername: rootpassword: rootinitial-size: 1min-idle: 1max-active: 20test-on-borrow: truedriver-class-name: com.mysql.cj.jdbc.Driver

	@GetMapping(value = "select")@DS("slave_1")public List<Friend> select(){return friendService.list();}@GetMapping(value = "insert")@DS("master")public void in(){Friend friend = new Friend();friend.setName("loulan");friendService.save(friend);}