用于封装接口统一响应结果

import com.alibaba.fastjson.JSON;
import com.mengxuegu.blog.util.enums.ResultEnum;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Serializable;

/**
 * 用于封装接口统一响应结果
 */
@Data
@NoArgsConstructor // 无参构造方法
@AllArgsConstructor // 有参构造方法
public final class Result implements Serializable {

    private static final Logger logger = LoggerFactory.getLogger(Result.class);

    private static final long serialVersionUID = 1L;

    /**
     * 响应业务状态码
     */
    private Integer code;

    /**
     * 响应信息
     */
    private String message;

    /**
     * 响应中的数据
     */
    private Object data;

    public static Result ok() {
        return new Result(ResultEnum.SUCCESS.getCode(), ResultEnum.SUCCESS.getDesc(), null);
    }

    public static Result ok(Object data) {
        return new Result(ResultEnum.SUCCESS.getCode(), ResultEnum.SUCCESS.getDesc(), data);
    }

    public static Result ok(String message, Object data) {
        return new Result(ResultEnum.SUCCESS.getCode(), message, data);
    }

    public static Result error(String message) {
        logger.debug("返回错误：code={}, message={}", ResultEnum.ERROR.getCode(), message);
        return new Result(ResultEnum.ERROR.getCode(), message, null);
    }

    public static Result build(int code, String message) {
        logger.debug("返回结果：code={}, message={}", code, message);
        return new Result(code, message, null);
    }

    public static Result build(ResultEnum resultEnum) {
        logger.debug("返回结果：code={}, message={}", resultEnum.getCode(), resultEnum.getDesc());
        return new Result(resultEnum.getCode(), resultEnum.getDesc(), null);
    }
   
   public String toJsonString() {
        return JSON .toJSONString(this);
    }

}

import lombok.AllArgsConstructor;
import lombok.Getter;

@Getter
@AllArgsConstructor
public enum ResultEnum {

    SUCCESS(20000, "成功"),

    ERROR(999, "错误"),

    UNAUTHENTICATED(401, "请先通过身份认证"), AUTH_FAIL(1400, "认证失败"),

    // token异常
    TOKEN_PAST(1401, "身份过期，请求重新登录！"), TOKEN_ERROR(1402, "令牌错误"),

    HEADEA_ERROR(1403, "请求头错误"),

    AUTH_USERNAME_NONE(1405, "用户名不能为空"), AUTH_PASSWORD_NONE(1406, "密码不能为空"),

    MENU_NO(306, "没此权限，请联系管理员！");

    private Integer code;
    private String desc;
}