微服务提供者-支付Module模块构建
微服务模块流程：
1.建module
右键父工程，选择New中的Module。
输入模块名称。点击【Finish】。
建好的结构如下：
2.改POM
查看父工程的POM文件，看看变化。在父POM中多了modules节点。
选择modeul中的pom，添加引入配置：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>ckfuture-springcloud</artifactId>
<groupId>com.ckfuture.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-provider-payment8001</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!--mysql-connector-java-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--jdbc-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
3.写YML
新建yml文件。在modul中找到main下的resources右键新建file。输入“application.yml”
application.yml配置信息为：
server: port: 8001 spring: application: name: cloud-payment-service datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: org.gjt.mm.mysql.Driver url: jdbc:mysql://localhost:3306/standarddb?userUnicode=true&characterEncoding=utf-8&useSSL=false username: sa password: HRBJYKJ-Battery mybatis: mapper-locations: classpath:mapper/*.xml type-aliases-package: com.atguigu.springcloud.entities
注：如果type：com.alibab.druid.pool.DruidDataSource爆红，则在mave中重新下载一下即可。
4.主启动
在main的java右键新建Java Class。
输入名称："com.ckfuture.springcloud.PaymentMain8001"。
修改类代码：
package com.ckfuture.springcloud;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* @descrption： 主启动类
* @author： CKFuture
* @since： 2021-10-09 21:18
* @version： v1.0
* @LastEditTime：
* @LastEditors：
* @copyright： hrbckfuture.com
*/
@SpringBootApplication
public class PaymentMain8001 {
private static final Logger logger = LoggerFactory.getLogger(PaymentMain8001.class);
public static void main(String[] args) {
SpringApplication.run(PaymentMain8001.class,args);
logger.info("------------ API Service8001 Start Running--------------");
}
}
5.业务类
1）创建数据表
创建数据表payment。
2）entities
创建“entities”文件夹。分别创建Payment和CommonResult类。Payment为支付实体类。CommonResult为统一的返回类。
package com.ckfuture.springcloud.entities; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import java.io.Serializable; /** * @descrption： 支付实体类 * @author： CKFuture * @since： 2021-10-09 21:35 * @version： v1.0 * @LastEditTime： * @LastEditors： * @copyright： hrbckfuture.com */ @Data @AllArgsConstructor @NoArgsConstructor public class Payment implements Serializable { private Long id; private String serial; }
package com.ckfuture.springcloud.entities; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; @Data @AllArgsConstructor @NoArgsConstructor public class CommonResult<T> { //返回代码 private Integer code; //返回信息 private String message; //返回数据 private T data; public CommonResult(Integer code,String message){ this(code,message,null); } }
3）dao
创建“dao”文件夹，并创建“PaymentDao”接口。
package com.ckfuture.springcloud.dao;
import com.ckfuture.springcloud.entities.Payment;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
@Mapper
public interface PaymentDao {
/**
* 添加
* @param payment
* @return
*/
public int create(Payment payment);
/**
* 通过id查询数据
* @param id
* @return
*/
public Payment getPaymentById(@Param("id") Long id);
}
在resources中创建mapper文件夹，并创建“PaymentMapper.xml”文件，用于实现PaymentDao接口。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ckfuture.springcloud.dao.PaymentDao">
<resultMap id="BaseResultMap" type="com.ckfuture.springcloud.entities.Payment">
<id column="id" property="id" jdbcType="BIGINT"/>
<id column="serial" property="serial" jdbcType="VARCHAR"/>
</resultMap>
<insert id="create" parameterType="com.ckfuture.springcloud.entities.Payment" useGeneratedKeys="true" keyProperty="id">
insert into payment(serial) values(#{serial});
</insert>
<select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
select * from where id= #{id};
</select>
</mapper>
4）service
创建“service”文件夹，并创建“PaymentService”接口。
package com.ckfuture.springcloud.service; import com.ckfuture.springcloud.entities.Payment; import org.apache.ibatis.annotations.Param; /** * @descrption： 支付服务接口 * @author： CKFuture * @since： 2021-10-09 22:26 * @version： v1.0 * @LastEditTime： * @LastEditors： * @copyright： hrbckfuture.com */ public interface PaymentService { /** * 添加 * @param payment * @return */ public int create(Payment payment); /** * 通过id查询数据 * @param id * @return */ public Payment getPaymentById(@Param("id") Long id); }
创建“impl”文件夹，并创建“PaymentServiceImpl”实现类。
package com.ckfuture.springcloud.service.impl; import com.ckfuture.springcloud.dao.PaymentDao; import com.ckfuture.springcloud.entities.Payment; import com.ckfuture.springcloud.service.PaymentService; import org.springframework.stereotype.Service; import javax.annotation.Resource; /** * @descrption： 支付服务接口实现类 * @author： CKFuture * @since： 2021-10-09 22:26 * @version： v1.0 * @LastEditTime： * @LastEditors： * @copyright： hrbckfuture.com */ @Service public class PaymentServiceImpl implements PaymentService { @Resource private PaymentDao paymentDao; public int create(Payment payment){ return paymentDao.create(payment); } public Payment getPaymentById(Long id){ return paymentDao.getPaymentById(id); } }
5）controller
新建“controller”文件夹，并创建“PaymentController”类。
package com.ckfuture.springcloud.controller;
import com.ckfuture.springcloud.entities.CommonResult;
import com.ckfuture.springcloud.entities.Payment;
import com.ckfuture.springcloud.service.PaymentService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
@Api(tags={"支付接口"})
@RestController
@Slf4j
public class PaymentController {
@Resource
private PaymentService paymentService;
@PostMapping(value = "/payment/create")
public CommonResult create(@RequestBody Payment payment){
int result = paymentService.create(payment);
log.info("*****插入结果："+result);
if(result > 0){
return new CommonResult(200,"插入数据库成功",result);
}else {
return new CommonResult(301,"插入数据库失败",null);
}
}
@GetMapping(value = "/payment/get/{id}")
public CommonResult getPaymentById(@PathVariable("id") Long id){
Payment payment = paymentService.getPaymentById(id);
log.info("*****查询结果："+payment);
if(payment != null){
return new CommonResult(200,"查询成功",payment);
}else {
return new CommonResult(301,"没有对应记录，查询Id:"+id,null);
}
}
}
6.测试
启动8001服务
浏览器数据测试接口，得到查询数据。
利用postman测试插入
