目录

一、cloud项目创建

1.1、项目编码规范

1.2、注解生效激活 

1.3、导入父工程maven的pom依赖 

二、创建子工程并导入相关pom依赖 

2.1、相关配置文件 

2.1.1、数据库配置文件内容

2.1.2、自动生成文件配置内容

三、创建微服务8001子工程

3.1、导入相关pom依赖 

 3.2、创建yml配置文件及内容

3.3、相关测试代码

四、创建微服务80子工程

 4.1、导入相关pom依赖

 4.2、创建yml配置文件及内容

4.3、相关测试代码 

一、cloud项目创建

1.1、项目编码规范

1.2、注解生效激活 

1.3、导入父工程maven的pom依赖 

<packaging>pom</packaging>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <hutool.version>5.8.22</hutool.version>
        <lombok.version>1.18.26</lombok.version>
        <druid.version>1.1.20</druid.version>
        <mybatis.springboot.version>3.0.2</mybatis.springboot.version>
        <mysql.version>8.0.11</mysql.version>
        <swagger3.version>2.2.0</swagger3.version>
        <mapper.version>4.2.3</mapper.version>
        <fastjson2.version>2.0.40</fastjson2.version>
        <persistence-api.version>1.0.2</persistence-api.version>
        <spring.boot.test.version>3.1.5</spring.boot.test.version>
        <spring.boot.version>3.2.0</spring.boot.version>
        <spring.cloud.version>2023.0.0</spring.cloud.version>
        <spring.cloud.alibaba.version>2022.0.0.0-RC2</spring.cloud.alibaba.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--springboot 3.2.0-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>${spring.boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--springcloud 2023.0.0-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--springcloud alibaba 2022.0.0.0-RC2-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring.cloud.alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--SpringBoot集成mybatis-->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.springboot.version}</version>
            </dependency>
            <!--Mysql数据库驱动8 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!--SpringBoot集成druid连接池-->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!--通用Mapper4之tk.mybatis-->
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper</artifactId>
                <version>${mapper.version}</version>
            </dependency>
            <!--persistence-->
            <dependency>
                <groupId>javax.persistence</groupId>
                <artifactId>persistence-api</artifactId>
                <version>${persistence-api.version}</version>
            </dependency>
            <!-- fastjson2 -->
            <dependency>
                <groupId>com.alibaba.fastjson2</groupId>
                <artifactId>fastjson2</artifactId>
                <version>${fastjson2.version}</version>
            </dependency>
            <!-- swagger3 调用方式 http://你的主机IP地址:5555/swagger-ui/index.html -->
            <dependency>
                <groupId>org.springdoc</groupId>
                <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
                <version>${swagger3.version}</version>
            </dependency>
            <!--hutool-->
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>
            <!--lombok-->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
                <optional>true</optional>
            </dependency>
            <!-- spring-boot-starter-test -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <version>${spring.boot.test.version}</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

二、创建子工程并导入相关pom依赖 

<dependencies>
        <!--Mybatis 通用mapper tk单独使用，自己独有+自带版本号-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.13</version>
        </dependency>
        <!-- Mybatis Generator 自己独有+自带版本号-->
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.4.2</version>
        </dependency>
        <!--通用Mapper-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
        </dependency>
        <!--mysql8.0-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--persistence-->
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
        </dependency>
        <!--hutool-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <!--lombok-->
        <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>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <resources>
            <resource>
                <directory>${basedir}/src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>${basedir}/src/main/resources</directory>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.4.2</version>
                <configuration>
                    <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>
                    <overwrite>true</overwrite>
                    <verbose>true</verbose>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>8.0.33</version>
                    </dependency>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>4.2.3</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

2.1、相关配置文件 

2.1.1、数据库配置文件内容

#t_pay表包名
package.name=com.cjc.cloud

# mysql8.0
jdbc.driverClass = com.mysql.cj.jdbc.Driver
jdbc.url= jdbc:mysql://localhost:3306/cloud2024?characterEncoding=utf8&useSSL=false&serverTimezone=GMT%2B8&rewriteBatchedStatements=true&allowPublicKeyRetrieval=true
jdbc.user = root
jdbc.password =123456

2.1.2、自动生成文件配置内容

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
    <properties resource="config.properties"/>

    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>

        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
            <property name="caseSensitive" value="true"/>
        </plugin>

        <jdbcConnection driverClass="${jdbc.driverClass}"
                        connectionURL="${jdbc.url}"
                        userId="${jdbc.user}"
                        password="${jdbc.password}">
        </jdbcConnection>

        <javaModelGenerator targetPackage="${package.name}.entities" targetProject="src/main/java"/>

        <sqlMapGenerator targetPackage="${package.name}.mapper" targetProject="src/main/java"/>

        <javaClientGenerator targetPackage="${package.name}.mapper" targetProject="src/main/java" type="XMLMAPPER"/>

        <table tableName="t_pay" domainObjectName="Pay">
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
    </context>
</generatorConfiguration>

三、创建微服务8001子工程

3.1、导入相关pom依赖 

 <dependencies>
        <!--SpringBoot通用依赖模块-->
        <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>
        <!--SpringBoot集成druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
        </dependency>
        <!-- Swagger3 调用方式 http://你的主机IP地址:5555/swagger-ui/index.html -->
        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
        </dependency>
        <!--mybatis和springboot整合-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <!--Mysql数据库驱动8 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--persistence-->
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
        </dependency>
        <!--通用Mapper4-->
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
        </dependency>
        <!--hutool-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <!-- fastjson2 -->
        <dependency>
            <groupId>com.alibaba.fastjson2</groupId>
            <artifactId>fastjson2</artifactId>
        </dependency>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.28</version>
            <scope>provided</scope>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

 3.2、创建yml配置文件及内容

server:
  port: 8001

# ==========applicationName + druid-mysql8 driver===================
spring:
  application:
    name: cloud-payment-service

  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/cloud2024?characterEncoding=utf8&useSSL=false&serverTimezone=GMT%2B8&rewriteBatchedStatements=true&allowPublicKeyRetrieval=true
    username: root
    password: 123456

# ========================mybatis===================
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.cjc.cloud.entities
  configuration:
    map-underscore-to-camel-case: true

3.3、相关测试代码

实体类

/**
 * 表名：t_pay
 * 表注释：支付交易表
*/
@Table(name = "t_pay")
@Schema(title = "支付交易表实体类")
@Data
public class Pay {
    @Id
    @GeneratedValue(generator = "JDBC")
    @Schema(title = "主键id")
    private Integer id;

    /**
     * 支付流水号
     */
    @Column(name = "pay_no")
    @Schema(title = "支付流水号")
    private String payNo;

    /**
     * 订单流水号
     */
    @Column(name = "order_no")
    @Schema(title = "订单流水号")
    private String orderNo;

    /**
     * 用户账号ID
     */
    @Column(name = "user_id")
    @Schema(title = "用户账号ID")
    private Integer userId;

    /**
     * 交易金额
     */
    @Schema(title = "交易金额")
    private BigDecimal amount;

    /**
     * 删除标志，默认0不删除，1删除
     */
    @Schema(title = "删除标志")
    private Byte deleted;

    /**
     * 创建时间
     */
    @Column(name = "create_time")
    @Schema(title = "创建时间")
    //统一时间格式
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    private Date createTime;

    /**
     * 更新时间
     */
    @Column(name = "update_time")
    @Schema(title = "更新时间")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    private Date updateTime;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class PayDTO implements Serializable {
    private Integer id;
    //支付流水号
    private String payNo;
    //订单流水号
    private String orderNo;
    //用户账号ID
    private Integer userId;
    //交易金额
    private BigDecimal amount;
}

mapper接口

public interface PayMapper extends Mapper<Pay> {
}

mapper映射文件

<?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.cjc.cloud.mapper.PayMapper">
  <resultMap id="BaseResultMap" type="com.cjc.cloud.entities.Pay">
    <!--
      WARNING - @mbg.generated
    -->
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="pay_no" jdbcType="VARCHAR" property="payNo" />
    <result column="order_no" jdbcType="VARCHAR" property="orderNo" />
    <result column="user_id" jdbcType="INTEGER" property="userId" />
    <result column="amount" jdbcType="DECIMAL" property="amount" />
    <result column="deleted" jdbcType="TINYINT" property="deleted" />
    <result column="create_time" jdbcType="TIMESTAMP" property="createTime" />
    <result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
  </resultMap>
</mapper>

service接口及实现类

public interface PayService {
    public int addPay(Pay pay);
    public int updatePay(Pay pay);
    public int removePay(Integer id);
    public Pay getById(Integer id);
    public List<Pay> getAll();
}

@Service
public class PayServiceImpl implements PayService {
    @Resource
    private PayMapper payMapper;
    @Override
    public int addPay(Pay pay) {
        return payMapper.insertSelective(pay);
    }

    @Override
    public int updatePay(Pay pay) {
        return payMapper.updateByPrimaryKeySelective(pay);
    }

    @Override
    public int removePay(Integer id) {
        return payMapper.deleteByPrimaryKey(id);
    }

    @Override
    public Pay getById(Integer id) {
        return payMapper.selectByPrimaryKey(id);
    }

    @Override
    public List<Pay> getAll() {
        return payMapper.selectAll();
    }
}

 swagger配置类

@Configuration
public class Swagger3Config {
    @Bean
    public GroupedOpenApi PayApi()
    {
        return GroupedOpenApi.builder().group("支付微服务模块").pathsToMatch("/pay/**").build();
    }
    @Bean
    public GroupedOpenApi OtherApi()
    {
        return GroupedOpenApi.builder().group("其它微服务模块").pathsToMatch("/other/**", "/others").build();
    }
    /*@Bean
    public GroupedOpenApi CustomerApi()
    {
        return GroupedOpenApi.builder().group("客户微服务模块").pathsToMatch("/customer/**", "/customers").build();
    }*/

    @Bean
    public OpenAPI docsOpenApi()
    {
        return new OpenAPI()
                .info(new Info().title("cloud2024")
                        .description("通用设计rest")
                        .version("v1.0"))
                .externalDocs(new ExternalDocumentation()
                        .description("www.cjc.com")
                        .url("https://yiyan.baidu.com/"));
    }
}

相关工具类

@Getter
public enum ReturnCodeEnum {
    /**操作失败**/
    RC999("999","操作XXX失败"),
    /**操作成功**/
    RC200("200","success"),
    /**服务降级**/
    RC201("201","服务开启降级保护,请稍后再试!"),
    /**热点参数限流**/
    RC202("202","热点参数限流,请稍后再试!"),
    /**系统规则不满足**/
    RC203("203","系统规则不满足要求,请稍后再试!"),
    /**授权规则不通过**/
    RC204("204","授权规则不通过,请稍后再试!"),
    /**access_denied**/
    RC403("403","无访问权限,请联系管理员授予权限"),
    /**access_denied**/
    RC401("401","匿名用户访问无权限资源时的异常"),
    RC404("404","404页面找不到的异常"),
    /**服务异常**/
    RC500("500","系统异常，请稍后重试"),
    RC375("375","数学运算异常，请稍后重试"),

    INVALID_TOKEN("2001","访问令牌不合法"),
    ACCESS_DENIED("2003","没有权限访问该资源"),
    CLIENT_AUTHENTICATION_FAILED("1001","客户端认证失败"),
    USERNAME_OR_PASSWORD_ERROR("1002","用户名或密码错误"),
    BUSINESS_ERROR("1004","业务逻辑异常"),
    UNSUPPORTED_GRANT_TYPE("1003", "不支持的认证模式");

    private final String code;
    private final String message;

    ReturnCodeEnum(String code, String message) {
        this.code = code;
        this.message = message;
    }
    //普通遍历
    public static ReturnCodeEnum returnCodeEnum1(String code){
        for (ReturnCodeEnum returnCodeEnum : ReturnCodeEnum.values()) {
            if (returnCodeEnum.getCode().equalsIgnoreCase(code)){
                return returnCodeEnum;
            }
        }
        return null;
    }
    //stream流
    public static ReturnCodeEnum returnCodeEnum2(String code){
        return Arrays.stream(ReturnCodeEnum.values())
                .filter(x -> x.getCode().equalsIgnoreCase(code))
                .findFirst()
                .orElse(null);
    }

    public static void main(String[] args) {
        System.out.println(returnCodeEnum1("256"));
        System.out.println(returnCodeEnum2("200").getMessage());
    }
}

@Data
@Accessors(chain = true)
public class ResultData<T> {
    private String code;
    private String message;
    private T data;
    private long timestamp;//接口调用时间

    public ResultData() {
        this.timestamp = System.currentTimeMillis();
    }
    //成功
    public static <T> ResultData<T> success(T data){
        ResultData resultData = new ResultData<>();
        resultData.setCode(ReturnCodeEnum.RC200.getCode());
        resultData.setMessage(ReturnCodeEnum.RC200.getMessage());
        resultData.setData(data);
        return resultData;
    }
    //失败
    public static <T> ResultData<T> fail(String code, String message){
        ResultData resultData = new ResultData<>();
        resultData.setCode(code);
        resultData.setMessage(message);
        resultData.setData(null);
        return resultData;
    }
}

@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler({NullPointerException.class,RuntimeException.class})
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public ResultData<String> exception(Exception e){
        System.out.println("come in GlobalExceptionHandler");
        log.error("全局异常信息：{}",e.getMessage(),e);
        return ResultData.fail(ReturnCodeEnum.RC500.getCode(),ReturnCodeEnum.RC500.getMessage());
    }
}

controller层

@RestController
@Slf4j
@Tag(name = "支付模块",description = "支付CURD")
public class PayController {
    @Autowired
    private PayService payService;
    @Operation(summary = "添加",description = "添加支付流水方法")
    @PostMapping(value = "/pay/add")
    public ResultData<String> addPay(@RequestBody Pay pay){
        int i = payService.addPay(pay);
        if (i > 0){
            return ResultData.success("添加成功" + i);
        } else {
            return ResultData.fail(ReturnCodeEnum.RC999.getCode(),ReturnCodeEnum.RC999.getMessage());
        }

    }
    @PutMapping(value = "/pay/update")
    @Operation(summary = "修改",description = "修改支付流水方法")
    public ResultData<String> updatePay(@RequestBody PayDTO payDTO){
        Pay pay = new Pay();
        BeanUtils.copyProperties(payDTO,pay);
        int i = payService.updatePay(pay);
        if (i > 0){
            return ResultData.success("修改成功" + i);
        } else {
            return ResultData.fail(ReturnCodeEnum.RC999.getCode(),ReturnCodeEnum.RC999.getMessage());
        }
    }
    @DeleteMapping("/pay/remove/{id}")
    @Operation(summary = "删除",description = "删除支付流水方法")
    public ResultData<String> removePayId(@PathVariable("id") Integer id){
        int i = payService.removePay(id);
        if (i > 0){
            return ResultData.success("删除成功" + i);
        } else {
            throw new RuntimeException("删除失败");
        }
    }
    @GetMapping(value = "/pay/getById/{id}")
    @Operation(summary = "根据id查询",description = "根据流水id查询")
    public ResultData<Pay> getById(@PathVariable("id") Integer id){
        Pay pay = payService.getById(id);
        if (!pay.equals(null)){
            return ResultData.success(pay);
        }else {
            throw new RuntimeException("查询为空");
        }
    }
    @GetMapping(value = "/pay/getAll")
    @Operation(summary = "查询全部流水",description = "查询所以流水信息")
    public ResultData<List<Pay>> getAll(){
        List<Pay> all = payService.getAll();
        if (all.size() >= 0){
            return ResultData.success(all);
        }else{
            throw new RuntimeException("查询为空");
        }
    }
}

四、创建微服务80子工程

 4.1、导入相关pom依赖

    <dependencies>
        <!--web + actuator-->
        <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>
        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!--hutool-all-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <!--fastjson2-->
        <dependency>
            <groupId>com.alibaba.fastjson2</groupId>
            <artifactId>fastjson2</artifactId>
        </dependency>
        <!-- swagger3 调用方式 http://你的主机IP地址:5555/swagger-ui/index.html -->
        <dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

 4.2、创建yml配置文件及内容

server:
  port: 80

4.3、相关测试代码 

@RestController
public class OrderController {
    public static final String URL = "http://localhost:8001";
    @Autowired
    private RestTemplate restTemplate;
    //添加
    @GetMapping("/consumer/pay/add")
    public ResultData addOrder(PayDTO payDTO){
        return restTemplate.postForObject(URL + "/pay/add", payDTO, ResultData.class);
    }
    //删除
    @GetMapping("/consumer/pay/remove/{id}")
    public ResultData removeOrder(@PathVariable("id") Integer id){
          restTemplate.delete(URL + "/pay/remove/"+id,id);
          return ResultData.success(null);
    }
    //修改
    @GetMapping("/consumer/pay/update")
    public ResultData updateOrder(PayDTO payDTO){
         restTemplate.put(URL + "/pay/update", payDTO);
         return ResultData.success(null);

    }
    //查询
    @GetMapping("/consumer/pay/getById/{id}")
    public ResultData getByIdOrder(@PathVariable("id") Integer id){
        return restTemplate.getForObject(URL+ "/pay/getById/"+id,ResultData.class,id);
    }
}