业务实现

后端¶

返回通用对象¶

给对象补充一些信息，告诉前端这个请求在业务层面上是成功还是失败

{
    "code": 200,
    "data": {
        "id": 123456
    },
    "msg": "注册成功"
}

① 定义全局返回对象

@Data
public class BaseResponse<T> implements Serializable {
    private int code;
    private T data;
    private String msg;
}

② 封装返回工具类

public class ResponseUtils {
    public static <T> BaseResponse<T> success(T data) {
        BaseResponse<T> response = new BaseResponse<>();
        response.setCode(200);
        response.setData(data);
        response.setMsg("success");
        return response;
    }

    public static <T> BaseResponse<T> error(String msg) {
        BaseResponse<T> response = new BaseResponse<>();
        response.setCode(500);
        response.setMsg(msg);
        return response;
    }

}

③ 定义Code枚举类型

public enum ErrorCode {
    SUCCESS(200, "success"),
    ERROR(500, "error");
    private final int code;
    private final String msg;

    ErrorCode(int code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    // ...getter
}

封装全局异常处理类¶

1、定义业务异常类

相对于Java的异常类，支持更多字段
自定义构造函数，更灵活、快捷地设置字段

public class BusinessException extends RuntimeException{
    private int code;
    private String description;

    public BusinessException(int code, String description) {
        this.code = code;
        this.description = description;
    }
}

2、编写全局异常处理器

捕获代码中所有的异常，内部消化，让前端得到更详细的业务报错/ 信息
屏蔽掉项目框架本身的异常（不暴露服务器内部状态)
集中外理，比如记录日志（@Slf4j）
Spring AOP：在调用方法前后进行额外的处理

@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {
    @ExceptionHandler(BusinessException.class)
    public BaseResponse handleBusinessException(BusinessException e) {
        log.error("BusinessException: {}", e.getDescription());
        return ResponseUtils.error(e.getCode(), e.getDescription());
    }

    @ExceptionHandler(RuntimeException.class)
    public BaseResponse handleRuntimeException(RuntimeException e) {
        log.error("RuntimeException: {}", e.getMessage());
        return ResponseUtils.error(e.getMessage());
    }
}

前端 - 管理端¶

Git提交跳过husky校验¶

git commit --no-verify -m "备注信息"

前端 - 用户端¶

路由设计¶

/ → /win

/win
/mac
/linux
/typeface