5.3.2 修改pom添加依赖

<dependencies>
        <!--公共部门-->
        <dependency>
            <groupId>cn.bdqn</groupId>
            <artifactId>springcloud-api-commons</artifactId>
            <version>${project.version}</version>
        </dependency>

        <!--eureka client-->    
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        
        <!--actuator-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>

        <!--连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
        </dependency>

        <!--mysql连接-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <!--jdbc-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <!--热驱动-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>


        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!--测试-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

5.3.3编写yml

server:
  port: 8003

spring:
  application:
    name: springcloud-payment-provider-service
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/springcloud_db?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=GMT
    username: root
    password: xiaoduo456new


mybatis:
  type-aliases-package: cn.bdqn.domain
  mapper-locations: classpath:mapper/*.xml

eureka:
  client:
    #表示是否将自己注册进EurekaServer默认为true
    register-width-eureka: true
    #是否从EurekaServer抓取已有的注册信息，默认为true 单节点无所谓，集群必须设置true 才能配合ribbon  使用负载均衡
    fetch-registry: true
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka,
                   http://eureka7002:com:7002/eureka,
                   http://eureka7003:com:7003/eureka,

    instances:
      prefer-ip-address: true  #使用ip地址注册

5.3.4编写启动类


@SpringBootApplication
@EnableEurekaClient
public class Payment8003Application {
    public static void main(String[] args) {
        SpringApplication.run(Payment8003Application.class, args);
    }
}

5.3.5编写paymentMapper接口


public interface PaymentServer {

    //保存一个支付流水
    public void save(Payment payment);
    //根据id获取具体的支付信息
    public Payment selectById(Integer id);
}