springboot建立與資料庫關聯模組

建立步驟

1.匯入依賴
2.配置檔案
3.建立啟動類

1.匯入依賴

<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-openfeign</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax.persistence</groupId>
        <artifactId>persistence-api</artifactId>
        <version>1.0</version>
        <scope>compile</scope>
    </dependency>
        <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <!--自定義公共模組,可見公共模組文章-->
    <dependency>
        <groupId>com.xx</groupId>
        <artifactId>common_db</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.xx</groupId>
        <artifactId>service_goods_api</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
</dependencies>

2.配置檔案

server:
  port: 9011
spring:
  application:
    name: goods
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.200.128:3306/goods?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
    username: root
    password: root
eureka:
  client:
    service-url:
      defaultZone: http://127.0.0.1:6868/eureka
  instance:
    prefer-ip-address: true
feign:
  hystrix:
    enabled: true
    
#hystrix 配置
hystrix:
  command:
    default:
      execution:
        timeout:
        #如果enabled設定為false，則請求超時交給ribbon控制
          enabled: true
        isolation:
          strategy: SEMAPHORE

3.建立啟動類

@SpringBootApplication
@EnableEurekaClient
//@MapperScan是tk.mybatis.spring.annotation包下的，用於掃描Mapper介面*
@MapperScan(basePackages = {"com.goods.dao"})
public class GoodsApplication {
    public static void main(String[] args) {
        SpringApplication.run(GoodsApplication.class);
    }
}