spring-cloud-alibaba +nacos+fegin +mybatisplus整合

1.实体类工程 pojo

实体类工程pom文件

<parent>
<artifactId>kfl-cloud</artifactId>
<groupId>com.kfl</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<version>${pojo.version}</version>
<modelVersion>4.0.0</modelVersion>
<groupId>com.kfl</groupId>
<artifactId>kfl-common-pojo</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>${mybatis-plus.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.6</version>
</dependency>
</dependencies>

实体类

package com.kfl.pojo.user;

import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.baomidou.mybatisplus.extension.activerecord.Model;
import lombok.Data;

import java.util.Date;

@TableName("KFL_USER_INFO")
@Data
public class UserInfo extends Model<UserInfo> {
/** 主键 */
@TableId
private Long id ;
/** 手机号 */
private String phoneNum ;
/** 密码 */
private String pwd ;
/** 昵称 */
private String name ;
/** 创建时间 */
private Date createdTime ;
/** 更新时间 */
private Date updatedTime ;
/** 身份证号 */
private String idNum ;
/** 状态 */
private Integer status ;
/** 用户类型 */
private Integer fType ;
/** 用户来源 */
private Integer source ;
/** 用户头像 */
private String headImg ;
}

2.mapper工程

<parent>
<artifactId>kfl-cloud</artifactId>
<groupId>com.kfl</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.kfl</groupId>
<artifactId>kfl-common-mapper</artifactId>
<version>${mappper.version}</version>
<dependencies>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>${mybatis-plus.version}</version>
</dependency>
<dependency>
<groupId>com.kfl</groupId>
<artifactId>kfl-common-pojo</artifactId>
<version>${pojo.version}</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybatis-plus.version}</version>
</dependency>
</dependencies>

mapper类代码

public interface UserInfoMapper extends BaseMapper<UserInfo> {
}

以上这些都没有太多好说的重点来了

3.service接口工程

接口类

package com.kfl.service.api.user;

import com.kfl.pojo.user.UserInfo;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

@FeignClient(value = "service-user")
public interface IUserInfoService {

@GetMapping("/userinfo/{id}")
public UserInfo getUser(@PathVariable("id") Long id);
}

注意这里并没有集成IService类，如果加了会包以下错误
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘com…IUserInfoService’: FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: Method remove not annotated with HTTP method type (ex. GET, POST)

4.服务提供者工程

package com.kfl.service.user;

import com.baomidou.mybatisplus.extension.service.IService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.kfl.mapper.user.UserInfoMapper;
import com.kfl.pojo.user.UserInfo;
import com.kfl.service.api.user.IUserInfoService;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class UserServiceImpl extends ServiceImpl<UserInfoMapper, UserInfo> implements IUserInfoService, IService<UserInfo> {

@Override
public UserInfo getUser(Long id) {
return super.getById(id);
}
}

实现类工程中只要继承IUserInfoService ，IService两个类就可以解决上述异常

启动类代码

@SpringBootApplication
@EnableDiscoveryClient
@MapperScan("com.kfl.mapper.user")
@EnableFeignClients
public class ServiceUserApplication {

public static void main(String[] args) {
SpringApplication.run(ServiceUserApplication.class, args);
}
}

配置文件

server:
port: 8101
spring:
application:
name: service-user
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://192.168.2.253:3306/kfl?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT
username: root
password: root
mybatis-plus:
type-aliases-package: com.kfl.pojo
configuration:
map-underscore-to-camel-case: true