构建生成者

cloud-provider-payment8001微服务提供者支付Module模块

1. pom.xml

    <dependencies>
        <!--spring boot 2.2.2-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>2.2.2.RELEASE</version>

            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <!--spring cloud Hoxton.SR1-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Hoxton.SR1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <!--Spring cloud alibaba 2.1.0.RELEASE-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>2.1.0.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>

        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>

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

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

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

        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

2. 建表SQL

CREATE TABLE `payment`(
     `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'ID',
      `serial` varchar(200) DEFAULT '',
      PRIMARY KEY(`id`)
)  ENGINE = InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8

3.业务实体类

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {

    private Long id;
    private String serial;
}

@Data
@AllArgsConstructor
@NoArgsConstructor
public class CommonResult<T> {
    // 404 not found
    private Integer code;
    private String message;
    private T       data;

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

@Mapper
public interface PaymentDao {

    public int create(Payment payment);

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

<?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.atguigu.springcloud.dao.PaymentDao">
    <insert id="create" parameterType="com.atguigu.springcloud.entities.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 column="serial" property="serial" jdbcType="VARCHAR"/>
    </resultMap>
 
    <select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
        select * from payment where id = #{id};
    </select>
</mapper>

public interface PaymentService {

    public int create(Payment payment);

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

@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);
    }
}
 

@RestController
@Slf4j
public class PaymentController {

    @Resource
    private PaymentService paymentService;

    @PostMapping(value="/payment/create")
    public CommonResult create(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(444,"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("****插入结果:" + payment);

        if(payment != null){
            return  new CommonResult(200,"查询成功",payment);
        } else {
            return new CommonResult(444,"没有对应记录，查询ID: " + id,null);
        }
    }

}

4 .微服务运行

view ->service 打开服务窗口

在自己的工程下找到.idea 文件夹workspace.xml

<component name="RunDashboard">
    <option name="configurationTypes">
      <set>
        <option value="SpringBootApplicationConfigurationType" />
      </set>
    </option>
  </component>

5. 热部署

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

注意是你的父工程POM下
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <fork>true</fork>
                <addResources>true</addResources>
            </configuration>
        </plugin>
    </plugins>
</build>