项目中常见的工具类——统一返回

全局返回结果

import lombok.Data;

/**
 * @Classname：Result
 * @Description：全局统一返回结果
 * @Date：2023/6/5 22:59
 * @Author：jsz15
 */
@Data
public class Result {

    // 返回码
    private Integer code;

    // 返回消息
    private String message;

    // 返回数据
    private T data;

    public Result(){}

    protected static  Result build(T data) {
        Result result = new Result();
        if (data != null)
            result.setData(data);
        return result;
    }

    public static  Result build(T body, ResultCodeEnum resultCodeEnum) {
        Result result = build(body);
        result.setCode(resultCodeEnum.getCode());
        result.setMessage(resultCodeEnum.getMessage());
        return result;
    }

    public static  Result build(Integer code, String message) {
        Result result = build(null);
        result.setCode(code);
        result.setMessage(message);
        return result;
    }

    public static Result ok(){
        return Result.ok(null);
    }

    /**
     * 操作成功
     * @param data
     * @param 
     * @return
     */
    public static Result ok(T data){
        Result result = build(data);
        return build(data, ResultCodeEnum.SUCCESS);
    }

    public static Result fail(){
        return Result.fail(null);
    }

    /**
     * 操作失败
     * @param data
     * @param 
     * @return
     */
    public static Result fail(T data){
        Result result = build(data);
        return build(data, ResultCodeEnum.FAIL);
    }

    public Result message(String msg){
        this.setMessage(msg);
        return this;
    }

    public Result code(Integer code){
        this.setCode(code);
        return this;
    }

    public boolean isOk() {
        if(this.getCode().intValue() == ResultCodeEnum.SUCCESS.getCode().intValue()) {
            return true;
        }
        return false;
    }
}

枚举类

/**
 * @Classname：ResultCodeEnum 
 * @Description：全局统一返回结果
 * @Date：2023/6/5 22:57
 * @Author：jsz15
 */
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"),
    ;

    private Integer code;
    private String message;

    private ResultCodeEnum(Integer code, String message) {
        this.code = code;
        this.message = message;
    }

    public Integer getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }
}

使用案例

@RestController
@RequestMapping("/admin/hosp/hospitalSet")
public class HospitalSetController {

    //注入service
    @Autowired
    private HospitalSetService hospitalSetService;

    //1 查询医院设置表所有信息
    @GetMapping("findAll")
    public Result findAllHospitalSet() {
        //调用service的方法
        List list = hospitalSetService.list();
        return Result.ok(list);
    }

    //2 逻辑删除医院设置
    @DeleteMapping("{id}")
    public Result removeHospSet(@PathVariable Long id) {
        boolean flag = hospitalSetService.removeById(id);
        if(flag) {
            return Result.ok();
        } else {
            return Result.fail();
        }
    }

    //3 条件查询带分页
    @PostMapping("findPageHospSet/{current}/{limit}")
    public Result findPageHospSet(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody
(required = false) HospitalSetQueryVo hospitalSetQueryVo) {
        //创建page对象，传递当前页，每页记录数
        Page page = new Page<>(current,limit);
        //构建条件
        QueryWrapper wrapper = new QueryWrapper<>();
        String hosname = hospitalSetQueryVo.getHosname();//医院名称
        String hoscode = hospitalSetQueryVo.getHoscode();//医院编号
        if(!StringUtils.isEmpty(hosname)) {
            wrapper.like("hosname",hospitalSetQueryVo.getHosname());
        }
        if(!StringUtils.isEmpty(hoscode)) {
            wrapper.eq("hoscode",hospitalSetQueryVo.getHoscode());
        }
        //调用方法实现分页查询
        Page pageHospitalSet = hospitalSetService.page(page, wrapper);
        //返回结果
        return Result.ok(pageHospitalSet);
    }

    //4 添加医院设置
    @PostMapping("saveHospitalSet")
    public Result saveHospitalSet(@RequestBody HospitalSet hospitalSet) {
        //设置状态 1 使用 0 不能使用
        hospitalSet.setStatus(1);
        //签名秘钥
        Random random = new Random();
        hospitalSet.setSignKey(MD5.encrypt(System.currentTimeMillis()+""+random.nextInt(1000)));
        //调用service
        boolean save = hospitalSetService.save(hospitalSet);
        if(save) {
            return Result.ok();
        } else {
            return Result.fail();
        }
    }

    //5 根据id获取医院设置
    @GetMapping("getHospSet/{id}")
    public Result getHospSet(@PathVariable Long id) {
        HospitalSet hospitalSet = hospitalSetService.getById(id);
        return Result.ok(hospitalSet);
    }

    //6 修改医院设置
    @PostMapping("updateHospitalSet")
    public Result updateHospitalSet(@RequestBody HospitalSet hospitalSet) {
        boolean flag = hospitalSetService.updateById(hospitalSet);
        if(flag) {
            return Result.ok();
        } else {
            return Result.fail();
        }
    }

    //7 批量删除医院设置
    @DeleteMapping("batchRemove")
    public Result batchRemoveHospitalSet(@RequestBody List idList) {
        hospitalSetService.removeByIds(idList);
        return Result.ok();
    }
}