@RestController
@RequestMapping("/user")
public class UserController {
@PostMapping("add")
public ResponseEntity<String> add(User user){
if(user.getName()==null) {
return ResponseResult.fail("user name should not be empty");
} else if(user.getName().length()<5 || user.getName().length()>50){
return ResponseResult.fail("user name length should between 5-50");
}
if(user.getAge()< 1 || user.getAge()> 150) {
return ResponseResult.fail("invalid age");
}
// ...
return ResponseEntity.ok("success");
}
}

<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-validation -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>

/**
* user.
*
* @author pdai
*/
@Data
@Builder
@ApiModel(value = "User", subTypes = {AddressParam.class})
public class UserParam implements Serializable {
private static final long serialVersionUID = 1L;
@NotEmpty(message = "could not be empty")
private String userId;
@NotEmpty(message = "could not be empty")
@Email(message = "invalid email")
private String email;
@NotEmpty(message = "could not be empty")
@Pattern(regexp = "^(\\d{6})(\\d{4})(\\d{2})(\\d{2})(\\d{3})([0-9]|X)$", message = "invalid ID")
private String cardNo;
@NotEmpty(message = "could not be empty")
@Length(min = 1, max = 10, message = "nick name should be 1-10")
private String nickName;
@NotEmpty(message = "could not be empty")
@Range(min = 0, max = 1, message = "sex should be 0-1")
private int sex;
@Max(value = 100, message = "Please input valid age")
private int age;
@Valid
private AddressParam address;
}

/**
* @author pdai
*/
@Slf4j
@Api(value = "User Interfaces", tags = "User Interfaces")
@RestController
@RequestMapping("/user")
public class UserController {

/**
* http://localhost:8080/user/add .
*
* @param userParam user param
* @return user
*/
@ApiOperation("Add User")
@ApiImplicitParam(name = "userParam", type = "body", dataTypeClass = UserParam.class, required = true)
@PostMapping("add")
public ResponseEntity<String> add(@Valid @RequestBody UserParam userParam, BindingResult bindingResult){
if (bindingResult.hasErrors()) {
List<ObjectError> errors = bindingResult.getAllErrors();
errors.forEach(p -> {
FieldError fieldError = (FieldError) p;
log.error("Invalid Parameter : object - {},field - {},errorMessage - {}", fieldError.getObjectName(), fieldError.getField(), fieldError.getDefaultMessage());
});
return ResponseEntity.badRequest().body("invalid parameter");
}
return ResponseEntity.ok("success");
}
}

@Data
@Builder
@ApiModel(value = "User", subTypes = {AddressParam.class})
public class UserParam implements Serializable {
private static final long serialVersionUID = 1L;
@NotEmpty(message = "could not be empty") // 這里定為空，對(duì)于addUser時(shí)是不合適的
private String userId;
}

public interface AddValidationGroup {
}
public interface EditValidationGroup {
}

@Data
@Builder
@ApiModel(value = "User", subTypes = {AddressParam.class})
public class UserParam implements Serializable {
private static final long serialVersionUID = 1L;
@NotEmpty(message = "{user.msg.userId.notEmpty}", groups = {EditValidationGroup.class}) // 這里
private String userId;
}

@Slf4j
@Api(value = "User Interfaces", tags = "User Interfaces")
@RestController
@RequestMapping("/user")
public class UserController {

/**
* http://localhost:8080/user/add .
*
* @param userParam user param
* @return user
*/
@ApiOperation("Add User")
@ApiImplicitParam(name = "userParam", type = "body", dataTypeClass = UserParam.class, required = true)
@PostMapping("add")
public ResponseEntity<UserParam> add(@Validated(AddValidationGroup.class){
return ResponseEntity.ok(userParam);
}
/**
* http://localhost:8080/user/add .
*
* @param userParam user param
* @return user
*/
@ApiOperation("Edit User")
@ApiImplicitParam(name = "userParam", type = "body", dataTypeClass = UserParam.class, required = true)
@PostMapping("edit")
public ResponseEntity<UserParam> edit(@Validated(EditValidationGroup.class){
return ResponseEntity.ok(userParam);
}
}

@Data
@Builder
@ApiModel(value = "User", subTypes = {AddressParam.class})
public class UserParam implements Serializable {
private static final long serialVersionUID = 1L;
@Valid // 這里只能用@Valid
private AddressParam address;
}

@AssertFalse 被注釋的元素只能為false
@AssertTrue 被注釋的元素只能為true
@DecimalMax 被注釋的元素必須小于或等于{value}
@DecimalMin 被注釋的元素必須大于或等于{value}
@Digits 被注釋的元素?cái)?shù)字的值超出了允許范圍(只允許在{integer}位整數(shù)和{fraction}位小數(shù)范圍內(nèi))
@Email 被注釋的元素不是一個(gè)合法的電子郵件地址
@Future 被注釋的元素需要是一個(gè)將來(lái)的時(shí)間
@FutureOrPresent 被注釋的元素需要是一個(gè)將來(lái)或現(xiàn)在的時(shí)間
@Max 被注釋的元素最大不能超過(guò){value}
@Min 被注釋的元素最小不能小于{value}
@Negative 被注釋的元素必須是負(fù)數(shù)
@NegativeOrZero 被注釋的元素必須是負(fù)數(shù)或零
@NotBlank 被注釋的元素不能為空
@NotEmpty 被注釋的元素不能為空
@NotNull 被注釋的元素不能為null
@Null 被注釋的元素必須為null
@Past 被注釋的元素需要是一個(gè)過(guò)去的時(shí)間
@PastOrPresent 被注釋的元素需要是一個(gè)過(guò)去或現(xiàn)在的時(shí)間
@Pattern 被注釋的元素需要匹配正則表達(dá)式"{regexp}"
@Positive 被注釋的元素必須是正數(shù)
@PositiveOrZero 被注釋的元素必須是正數(shù)或零
@Size 被注釋的元素個(gè)數(shù)必須在{min}和{max}之間

@CreditCardNumber 被注釋的元素不合法的信用卡號(hào)碼
@Currency 被注釋的元素不合法的貨幣 (必須是{value}其中之一)
@EAN 被注釋的元素不合法的{type}條形碼
@Email 被注釋的元素不是一個(gè)合法的電子郵件地址 (已過(guò)期)
@Length 被注釋的元素長(zhǎng)度需要在{min}和{max}之間
@CodePointLength 被注釋的元素長(zhǎng)度需要在{min}和{max}之間
@LuhnCheck 被注釋的元素${validatedValue}的校驗(yàn)碼不合法, Luhn模10校驗(yàn)和不匹配
@Mod10Check 被注釋的元素${validatedValue}的校驗(yàn)碼不合法, 模10校驗(yàn)和不匹配
@Mod11Check 被注釋的元素${validatedValue}的校驗(yàn)碼不合法, 模11校驗(yàn)和不匹配
@ModCheck 被注釋的元素${validatedValue}的校驗(yàn)碼不合法, ${modType}校驗(yàn)和不匹配 (已過(guò)期)
@NotBlank 被注釋的元素不能為空 (已過(guò)期)
@NotEmpty 被注釋的元素不能為空 (已過(guò)期)
@ParametersScriptAssert 被注釋的元素執(zhí)行腳本表達(dá)式"{script}"沒有返回期望結(jié)果
@Range 被注釋的元素需要在{min}和{max}之間
@SafeHtml 被注釋的元素可能有不安全的HTML內(nèi)容
@ScriptAssert 被注釋的元素執(zhí)行腳本表達(dá)式"{script}"沒有返回期望結(jié)果
@URL 被注釋的元素需要是一個(gè)合法的URL
@DurationMax 被注釋的元素必須小于${inclusive == true ? '或等于' : ''}${days == 0 ? '' : days += '天'}${hours == 0 ? '' : hours += '小時(shí)'}${minutes == 0 ? '' : minutes += '分鐘'}${seconds == 0 ? '' : seconds += '秒'}${millis == 0 ? '' : millis += '毫秒'}${nanos == 0 ? '' : nanos += '納秒'}
@DurationMin 被注釋的元素必須大于${inclusive == true ? '或等于' : ''}${days == 0 ? '' : days += '天'}${hours == 0 ? '' : hours += '小時(shí)'}${minutes == 0 ? '' : minutes += '分鐘'}${seconds == 0 ? '' : seconds += '秒'}${millis == 0 ? '' : millis += '毫秒'}${nanos == 0 ? '' : nanos += '納秒'}

package tech.pdai.springboot.validation.group.validation.custom;

import javax.validation.Constraint;
import javax.validation.Payload;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
@Retention(RUNTIME)
@Documented
@Constraint(validatedBy = {TelephoneNumberValidator.class}) // 指定校驗(yàn)器
public @interface TelephoneNumber {
String message() default "Invalid telephone number";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
}

public class TelephoneNumberValidator implements ConstraintValidator<TelephoneNumber, String> {
private static final String REGEX_TEL = "0\\d{2,3}[-]?\\d{7,8}|0\\d{2,3}\\s?\\d{7,8}|13[0-9]\\d{8}|15[1089]\\d{8}";
@Override
public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext){
try {
return Pattern.matches(REGEX_TEL, s);
} catch (Exception e) {
return false;
}
}
}

@Data
@Builder
@ApiModel(value = "User", subTypes = {AddressParam.class})
public class UserParam implements Serializable {
private static final long serialVersionUID = 1L;
@NotEmpty(message = "{user.msg.userId.notEmpty}", groups = {EditValidationGroup.class})
private String userId;
@TelephoneNumber(message = "invalid telephone number") // 這里
private String telephone;
}