电商系统开发实战-用户微服务基础模块开发

电商系统开发实战-用户微服务基础模块开发 1.用户微服务项目开发之收货地址查询接口开发 1.1 配置文件配置 application.yml

server:
  port: 9001

spring:
  application:
    name: sundablog-user-service
  #数据库配置
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/xdclass_user?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai
    username: sunda
    password: 1314520abcD!

  redis:
    host: 127.0.0.1
    port: 6379
    password: rg81jYx9Yb6F2QSU

#配置plus打印sql日志
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
#设置日志级别,ERROR/WARN/INFO/DEBUG,默认是INFO以上才显示
logging:
  level:
    root: INFO

1.2 启动类

@SpringBootApplication
@MapperScan("com.sundablog.mapper")
public class UserApplication {
    public static void main(String[] args) {

        SpringApplication.run(UserApplication.class);
    }
}

1.3 接口类

public interface AddressService {
    
    AddressDO detail(long id);
}

1.4接口实现类

@Service
public class AddressServiceImpl implements AddressService {

    @Resource
    private AddressMapper addressMapper;


    @Override
    public AddressDO detail(long id) {
        return addressMapper.selectOne(new QueryWrapper().eq("id", id));

    }
}

1.5 控制器类

@Api(tags = "用户地址模块")
@RestController
@RequestMapping("/api/address/v1/")
public class AddressController {

    @Resource
    private AddressService addressService;

    @ApiOperation("根据id查询地址接口")
    @GetMapping("find")
    public JsonData detai(Long addressId){
        AddressDO detail = addressService.detail(addressId);
        return JsonData.buildSuccess(detail);
    }
}

1.6 Postman 请求测试

[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-1MxR0WlM-1622166627505)(https://image.sundablog.com/image-20210526115149301_1622001206729.png)]

2.微服务项目整合SwaggerUI3.0生成文档 2.1 common项目 新增SwaggerUI3.0依赖，parent项目已经声明了版本

       
           io.springfox
           springfox-boot-starter
       

2.2 SwaggerConfiguration配置类开发

import lombok.Data;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.oas.annotations.EnableOpenApi;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.documentationType;
import springfox.documentation.spring.web.plugins.Docket;

@Component
@EnableOpenApi
@Data
public class SwaggerConfiguration {

    @Bean
    public Docket webApiDoc(){


        return new Docket(documentationType.OAS_30)
                .groupName("用户端接口文档")
                .pathMapping("/")
                // 定义是否开启swagger，false为关闭，可以通过变量控制，线上关闭
                .enable(true)
                //配置api文档元信息
                .apiInfo(apiInfo())
                // 选择哪些接口作为swagger的doc发布
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.sundablog"))
                //正则匹配请求路径，并分配至当前分组
                .paths(PathSelectors.ant("/api
    OPS_REPEAT(110001,"重复操作"),

    
    CODE_TO_ERROR(240001,"接收号码不合规"),
    CODE_LIMITED(240002,"验证码发送过快"),
    CODE_ERROR(240003,"验证码错误"),
    CODE_CAPTCHA(240101,"图形验证码错误"),

    
    ACCOUNT_REPEAT(250001,"账号已经存在"),
    ACCOUNT_UNREGISTER(250002,"账号不存在"),
    ACCOUNT_PWD_ERROR(250003,"账号或者密码错误");

    private int code;
    private  String message;


    private BizCodeEnum(int code,String message){
        this.code = code;
        this.message = message;
    }

    public int getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

3.2 接口统一JsonData工具类开发

import com.sundablog.enums.BizCodeEnum;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class JsonData {
    

    private Integer code;
    
    private Object data;
    
    private String msg;


    
    public static JsonData buildSuccess() {
        return new JsonData(0, null, null);
    }

    
    public static JsonData buildSuccess(Object data) {
        return new JsonData(0, data, null);
    }

    
    public static JsonData buildError(String msg) {
        return new JsonData(-1, null, msg);
    }


    
    public static JsonData buildCodeAndMsg(int code, String msg) {
        return new JsonData(code, null, msg);
    }

    
    public static JsonData buildResult(BizCodeEnum codeEnum){
        return JsonData.buildCodeAndMsg(codeEnum.getCode(),codeEnum.getMessage());
    }
}

4.自定义全局异常+处理器handler开发 4.1自定义全局异常

@Data
public class BizException extends RuntimeException{
    private Integer code;
    private String msg;

    public BizException(Integer code, String message) {
        super(message);
        this.code = code;
        this.msg = message;
    }

    public BizException(BizCodeEnum bizCodeEnum) {
        super(bizCodeEnum.getMessage());
        this.code = bizCodeEnum.getCode();
        this.msg = bizCodeEnum.getMessage();
    }

}

4.2 自定义异常处理器

@ControllerAdvice
@Slf4j
public class ExceptionHandle {
    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public JsonData Handle(Exception e) {

        if (e instanceof BizException) {
            BizException bizException = (BizException) e;
            log.info("[业务异常]{}", e);
            return JsonData.buildCodeAndMsg(bizException.getCode(), bizException.getMsg());
        } else {
            log.info("[系统异常]{}", e);
            return JsonData.buildError("全局异常，未知错误");
        }
    }
}

4.3 集成Spring Boot Test单元测试和sql日志打印 4.3.1 common项目添加依赖

  org.springframework.boot
  spring-boot-starter-test

4.3.2 sundablog-user-service项目新建测试

@RunWith(SpringRunner.class)
@SpringBootTest(classes = UserApplication.class)
@Slf4j
public class AddressTest {

    @Resource
    private AddressService addressService;

    @Test
    public void testAddressDetail(){
        AddressDO addressDO = addressService.detail(2);
        log.info(addressDO.toString());

        Assert.assertNotNull(addressDO);
    }

}

4.3.3 Mybatis plus配置控制台打印日志

#配置plus打印sql日志
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl