spring boot项目使用validate校验

        
            org.springframework.boot
            spring-boot-starter-validation
        

提供了很多注解来辅助校验

@Data
public class LoginVo {

    @NotNull
    private String mobile;

    @NotNull//不为null
    @Length(min = 32)//长度最小为32
    private String password;
}

注解内容:

@Data
public class LoginVo {
    @NotNull
    @IsMobile
    private String mobile;

    @NotNull
    @Length(min = 32)
    private String password;

}

@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
@Retention(RUNTIME)
@documented
@Constraint(validatedBy = {IsMobilevalidator.class})//IsMobilevalidator注解校验的类
public @interface IsMobile {
    boolean required() default true;//判断是否必填

    String message() default "手机号码格式错误";

    Class[] groups() default { };

    Class[] payload() default { };
}

public class IsMobilevalidator implements ConstraintValidator {
    private boolean required = false;


    @Override
    public void initialize(IsMobile constraintAnnotation) {
        required = constraintAnnotation.required();
    }

    @Override
    public boolean isValid(String value, ConstraintValidatorContext context) {
        if (required){
            return ValidatorUtil.isMobile(value);
        }else {
            if (StringUtils.isEmpty(value)){
                return true;
            }else {
                return ValidatorUtil.isMobile(value);
            }
        }
    }
}

public class ValidatorUtil {
    //使用正则表达式校验手机号码
    private static final Pattern mobile_pattern = Pattern.compile("[1]([3-9])[0-9]{9}$");
    public static boolean isMobile(String mobile){
        if (StringUtils.isEmpty(mobile)) {
            return false;
        }
        Matcher matcher = mobile_pattern.matcher(mobile);
        return matcher.matches();
    }
}

    @RequestMapping("/doLogin")
    @ResponseBody
    public RespBean doLogin(@Valid LoginVo loginVo){//@Valid启动注解校验
        log.info(loginVo.toString());//使用@Slf4j注解打印日志
        return userService.login(loginVo);
    }