springcloud微服务学习笔记4:支付模块（下）

springcloud微服务学习笔记目录：

1.建表

2.entities
使用了lombok，可以在idea中安装lombok插件

/**
 * 实体类
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {

    private Long id;

    private String serial;

}

 

/**
 * 返回数据
 * @param <T>
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CommonResult<T> {

    private Integer code;

    private String message;

    private T data;

    public CommonResult(Integer code,String message){
       this(code,message,null);
    }
}

 

这里idea要安装lombok插件
安装方法


安装完后要重启idea才起作用
3.dao
3.1 mapper映射文件

<mapper namespace="com.atguigu.springcloud.dao.PaymentDao">

   <insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
       insert into payment(serial) values(#{serial});
   </insert>
    
    
    <resultMap id="BaseResultMap" type="com.atguigu.springcloud.entities.Payment">
        <id column="id" property="id" jdbcType="BIGINT"></id>
        <id column="serial" property="serial" jdbcType="VARCHAR"></id>
    </resultMap>

    <select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
        select * from payment where id=#{id};
    </select>

</mapper>

 

3.2 dao方法

@Mapper
public interface PaymentDao {

    int create(Payment payment);

    Payment getPaymentById(@Param("id")Long id);
}

 

4.service
4.1 service接口

public interface PaymentService {

    int create(Payment payment);

    Payment getPaymentById(@Param("id")Long id);
}

 

4.2service实现类

@Service
public class PaymentServiceImpl implements PaymentService {

    @Resource
    private PaymentDao paymentDao;

    @Override
    public int create(Payment payment) {
        return paymentDao.create(payment);
    }

    @Override
    public Payment getPaymentById(Long id) {
        return paymentDao.getPaymentById(id);
    }
}

 

5.controller

import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import com.atguigu.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;

@RestController
@Slf4j
public class PaymentController {

    @Resource
    private PaymentService paymentService;

    @PostMapping("/payment/creat")
    public CommonResult<Payment> create(@RequestBody Payment payment) {

        int result = paymentService.create(payment);
        log.info("******插入结果" + result);
        if (result > 0) {
            return new CommonResult(200, "success", result);
        } else {
            return new CommonResult(400, "fail", null);
        }
    }

    @GetMapping("/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {
        Payment payment = paymentService.getPaymentById(id);
        log.info("******查询结果" + payment);
        if (payment != null) {
            return new CommonResult(200, "success,serverPort:" , payment);
        } else {
            return new CommonResult(400, "fail", null);
        }
    }
}

 

完成到这，可以启动主启动类测试一下

忽略这个错