在日常开发中前后端对接一般要约定好某种规则，比如说一个接口甲同学返回code=100表示返回成功数据，乙同学返回code=200表示返回成功数据，就会形成很多各自的规则，前端对接起来也麻烦，因此针对这种情况要进行同一返回的规则，对code和message进行约定好
用到的工具类如下，可直接拿走：
Result:
package com.atguigu.yygh.common.result; import io.swagger.annotations.ApiModel; import io.swagger.annotations.ApiModelProperty; import lombok.Data; /** * 全局统一返回结果类 */ @Data @ApiModel(value = "全局统一返回结果") public class Result<T> { @ApiModelProperty(value = "返回码") private Integer code; @ApiModelProperty(value = "返回消息") private String message; @ApiModelProperty(value = "返回数据") private T data; public Result(){} protected static <T> Result<T> build(T data) { Result<T> result = new Result<T>(); if (data != null) result.setData(data); return result; } public static <T> Result<T> build(T body, ResultCodeEnum resultCodeEnum) { Result<T> result = build(body); result.setCode(resultCodeEnum.getCode()); result.setMessage(resultCodeEnum.getMessage()); return result; } public static <T> Result<T> build(Integer code, String message) { Result<T> result = build(null); result.setCode(code); result.setMessage(message); return result; } public static<T> Result<T> ok(){ return Result.ok(null); } /** * 操作成功 * @param data * @param <T> * @return */ public static<T> Result<T> ok(T data){ Result<T> result = build(data); return build(data, ResultCodeEnum.SUCCESS); } public static<T> Result<T> fail(){ return Result.fail(null); } /** * 操作失败 * @param data * @param <T> * @return */ public static<T> Result<T> fail(T data){ Result<T> result = build(data); return build(data, ResultCodeEnum.FAIL); } public Result<T> message(String msg){ this.setMessage(msg); return this; } public Result<T> code(Integer code){ this.setCode(code); return this; } public boolean isOk() { if(this.getCode().intValue() == ResultCodeEnum.SUCCESS.getCode().intValue()) { return true; } return false; } }ResultCodeEnum:
package com.atguigu.yygh.common.result; import lombok.Getter; /** * 统一返回结果状态信息类 */ @Getter public enum ResultCodeEnum { SUCCESS(200,"成功"), FAIL(201, "失败"), PARAM_ERROR( 202, "参数不正确"), SERVICE_ERROR(203, "服务异常"), DATA_ERROR(204, "数据异常"), DATA_UPDATE_ERROR(205, "数据版本异常"), LOGIN_AUTH(208, "未登陆"), PERMISSION(209, "没有权限"), CODE_ERROR(210, "验证码错误"), // LOGIN_MOBLE_ERROR(211, "账号不正确"), LOGIN_DISABLED_ERROR(212, "改用户已被禁用"), REGISTER_MOBLE_ERROR(213, "手机号已被使用"), LOGIN_AURH(214, "需要登录"), LOGIN_ACL(215, "没有权限"), URL_ENCODE_ERROR( 216, "URL编码失败"), ILLEGAL_CALLBACK_REQUEST_ERROR( 217, "非法回调请求"), FETCH_ACCESSTOKEN_FAILD( 218, "获取accessToken失败"), FETCH_USERINFO_ERROR( 219, "获取用户信息失败"), //LOGIN_ERROR( 23005, "登录失败"), PAY_RUN(220, "支付中"), CANCEL_ORDER_FAIL(225, "取消订单失败"), CANCEL_ORDER_NO(225, "不能取消预约"), HOSCODE_EXIST(230, "医院编号已经存在"), NUMBER_NO(240, "可预约号不足"), TIME_NO(250, "当前时间不可以预约"), SIGN_ERROR(300, "签名错误"), HOSPITAL_OPEN(310, "医院未开通，暂时不能访问"), HOSPITAL_LOCK(320, "医院被锁定，暂时不能访问"), PARAM_ILL(555,"参数异常"), PARAM_ILL2(555,"参数异常2"), ; private Integer code; private String message; private ResultCodeEnum(Integer code, String message) { this.code = code; this.message = message; } }controller调用如下所示：
