@Valid 注解的使用

@RequestMapping("register")
BaseResponse<JSONObject> register(@Valid UserDto userDto);

@Data
@JsonInclude(JsonInclude.Include.NON_NULL)
public class UserDto {
    @NotEmpty(message = "用户名不能为空")
    private String name;
    @NotEmpty(message = "密码不能为空")
    private String password;
    @NotEmpty(message = "昵称不能为空")
    private String nickName;
    //手机号码
    private String telephone;
    //短信验证码
    private String verityCode;
    //微信公众号openId
    private String openId;
    //预登录令牌
    private String preToken;
}

加了@Valid注解后就会校验对象的属性,节省if判断的冗余代码.