{"id":290744,"date":"2018-10-14T10:30:02","date_gmt":"2018-10-14T06:30:02","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=290744"},"modified":"-0001-11-30T00:00:00","modified_gmt":"2018-10-14T06:30:02","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=290744","title":{"rendered":"\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u2014 Java & Spring Validation"},"content":{"rendered":"\n
\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u043a\u043b\u0430\u0441\u0441\u0430 (bean) \u0432 java \u0442\u0435\u043c\u0430 \u043d\u0435 \u043d\u043e\u0432\u0430\u044f, \u043d\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u0430\u044f \u0438 \u0437\u0434\u0435\u0441\u044c \u044f \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044e \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u0430\u0441\u043f\u0435\u043a\u0442\u044b: \u0432\u0430\u043b\u0438\u0434\u0430\u0446\u0438\u044e \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 JSR-303, \u043f\u043e\u043a\u0430\u0436\u0443 \u043a\u0430\u043a \u044d\u0442\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0447\u0438\u0441\u0442\u043e \u0432 Java \u0438 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Spring, \u043a\u0430\u043a \u0434\u0435\u043b\u0430\u0442\u044c \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u043c \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438 \u0438 \u0432 Web.
\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435: \u0412\u0430\u043b\u0438\u0434\u0430\u0446\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 (JSR-303) \u0432
\u2014 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u043c Java \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438
\u2014 c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Spring
\u2014 \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 Java + Spring
\u2014 Spring MVC
<\/a> <\/p>\n

Validation \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u043c Java \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438<\/h3>\n

\u0414\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 \u043d\u0430 \u043f\u043e\u043b\u044f\u0445 \u043a\u043b\u0430\u0441\u0441\u0430, \u0442.\u0435. \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c. \u0410\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 \u0435\u0441\u0442\u044c \u0443\u0436\u0435 \u0433\u043e\u0442\u043e\u0432\u044b\u0435: <\/p>\n

Null<\/a>, @DecimalMin, @Digits, Pattern<\/a>, Email<\/a> \u0438 \u0434\u0440.<\/p><\/blockquote>\n

, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u043d\u043e \u0434\u0435\u043b\u0430\u0442\u044c \u0438 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435. \u0418 \u0442\u0430\u043a \u0435\u0441\u0442\u044c \u043a\u043b\u0430\u0441\u0441 (bean) <\/p>\n

import javax.validation.constraints.Digits; import javax.validation.constraints.Size;  public class Person {      @Size(min=2, max=50)     private String Name;      @Digits(integer=3, fraction=0, message = \"\u041d\u0435 \u0431\u043e\u043b\u0435\u0435 3-\u0445 \u0437\u043d\u0430\u043a\u043e\u0432\")     @PersonAgeConstraint     private Integer age;      public Person(String name, Integer age) {         Name = name;         this.age = age;     } } <\/code><\/pre>\n
  \u0417\u0434\u0435\u0441\u044c \u0432 \u043f\u0440\u0438\u043c\u0435\u0440\u0435 Size<\/a> \u0438 @Digits \u0433\u043e\u0442\u043e\u0432\u044b\u0435 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438, \u0430 @PersonAgeConstraint \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u0430\u044f. \u041a\u0430\u043a \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u0443\u044e:
   \u2014 \u043f\u043e\u0434\u0433\u043e\u0442\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u043c \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044e   <\/p>\n
@Target({ElementType.METHOD, ElementType.FIELD}) @Retention(RetentionPolicy.RUNTIME) @Constraint(validatedBy=PersonAgeConstraintValidator.class) public @interface PersonAgeConstraint {     String message() default \"{value.negative}\";     Class<?>[] groups() default {};     Class<? extends Payload>[] payload() default {}; } <\/code><\/pre>\n
  \u0412 message() \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c \u043a\u043b\u044e\u0447 (value.negative) \u0438\u0437 \u0444\u0430\u0439\u043b\u0430 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (ValidationMessages.properties) \u0434\u043b\u044f \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f  <\/p>\n
value.negative=\u041e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435\\u0020\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435<\/p><\/blockquote>\n
   \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043a\u043b\u0430\u0441\u0441\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u2014 PersonAgeConstraintValidator.class  <\/p>\n
public class PersonAgeConstraintValidator implements ConstraintValidator<PersonAgeConstraint, Integer> {     @Override     public boolean isValid(Integer age, ConstraintValidatorContext constraintValidatorContext) {         return age > 0;     } } <\/code><\/pre>\n
  \u041c\u043e\u044f \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u0430\u044f \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f \u0433\u043e\u0442\u043e\u0432\u0430, \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0435 \u043a \u043f\u043e\u043b\u044e \u0438 \u0443\u0436\u0435 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c, \u0432\u0441\u0435 \u043f\u043e\u043b\u044f \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0435\u0441\u0442\u044c \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 \u0431\u0443\u0434\u0443\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u043c\u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u0430\u043c\u0438.  <\/p>\n
import javax.validation.Validator; \/**  * Test Validation  *\/ public class DemoJValidationApplicationTests {      \/\/ \u0418\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f Validator     private static Validator validator;     static {         ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();         validator = validatorFactory.usingContext().getValidator();     }      @Test     public void testValidators() {         final Person person = new Person(\"\u0418\u0432\u0430\u043d \u041f\u0435\u0442\u0440\u043e\u0432\", -4500);          Set<ConstraintViolation<Person>> validates = validator.validate(person);         Assert.assertTrue(validates.size() > 0);         validates.stream().map(v -> v.getMessage())                 .forEach(System.out::println);     } } <\/code><\/pre>\n
  \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442 \u0432 \u043a\u043e\u043d\u0441\u043e\u043b\u0438 
  \u041d\u0435 \u0431\u043e\u043b\u0435\u0435 3-\u0445 \u0437\u043d\u0430\u043a\u043e\u0432
  \u041e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435
  <\/i><\/code> 
  \u0421\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0439 \u043c\u043e\u0436\u043d\u043e \u0443\u043a\u0430\u0437\u0430\u0442\u044c \u0432 \u0444\u0430\u0439\u043b\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439, \u043f\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u0443:
  AnnotationName.entity.fieldname=\u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435 <\/code>
  \u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u0430
  \"image\"  <\/p>\n
pom \u0444\u0430\u0439\u043b<\/b><\/p>\n
\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?> <project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" \txsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\"> \t<modelVersion>4.0.0<\/modelVersion>  \t<groupId>com.example<\/groupId> \t<artifactId>DemoJSRvalidation<\/artifactId> \t<version>0.0.1-SNAPSHOT<\/version> \t<packaging>jar<\/packaging>  \t<name>DemoJSRvalidation<\/name> \t<description>Demo project for Spring Boot JSR-303 validation<\/description>  \t<parent> \t\t<groupId>org.springframework.boot<\/groupId> \t\t<artifactId>spring-boot-starter-parent<\/artifactId> \t\t<version>2.0.5.RELEASE<\/version> \t\t<relativePath\/> <!-- lookup parent from repository --> \t<\/parent>  \t<properties> \t\t<project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding> \t\t<project.reporting.outputEncoding>UTF-8<\/project.reporting.outputEncoding> \t\t<java.version>1.8<\/java.version> \t<\/properties>  \t<dependencies> \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-validation<\/artifactId> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-test<\/artifactId> \t\t\t<scope>test<\/scope> \t\t<\/dependency> \t<\/dependencies>  \t<build> \t\t<plugins> \t\t\t<plugin> \t\t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t\t<artifactId>spring-boot-maven-plugin<\/artifactId> \t\t\t<\/plugin> \t\t<\/plugins> \t<\/build>   <\/project>  <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  \u041f\u043e\u044d\u0442\u0430\u043f\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430.<\/b> \u0414\u043b\u044f Class<?>[] groups() \u043c\u043e\u0436\u043d\u043e \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c \u0442\u0438\u043f\u044b \u043a\u043b\u0430\u0441\u0441\u043e\u0432 \u043f\u043e \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0442\u043e\u043c \u0433\u0440\u0443\u043f\u043f\u0438\u0440\u043e\u0432\u0430\u0442\u044c, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0442\u044c \u0441\u043f\u0438\u0441\u043e\u043a \u043f\u0440\u043e\u0432\u0435\u0440\u043e\u043a, \u0442.\u0435. \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043a\u0430\u043a \u0444\u0438\u043b\u044c\u0442\u0440. \u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043f\u043e \u044d\u0442\u0430\u043f\u0430\u043c, 1) \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u0440\u0430\u0437\u0434\u0435\u043b\u0438\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u043b\u0438\u0446\u0430 \u043f\u043e \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044e \u0437\u0434\u043e\u0440\u043e\u0432\u044c\u044f, 2) \u0430 \u0443\u0436\u0435 \u0437\u0430\u0442\u0435\u043c \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435. \u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043c \u0434\u0432\u0435 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 
  HealthConstraint \u0438 ProfessionalConstraint \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u043d\u0438\u0445. \u041f\u0435\u0440\u0432\u044b\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u043c \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0435 \u0437\u0434\u043e\u0440\u043e\u0432\u044c\u044e \u0430 \u0437\u0430\u0442\u0435\u043c \u0435\u0441\u043b\u0438 \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u043f\u043e \u0437\u0434\u043e\u0440\u043e\u0432\u044c\u044e, \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u043c \u043d\u0430 \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435. 
   \u043f\u0440\u0438\u043c\u0435\u0440:  <\/p>\n
public class Person {      @HealthConstraint(groups = Health.class)     private Documents healthDocuments;      @ProfessionalConstraint(groups = Professional.class)     private Documents ProfessionalDocuments;     \/\/... } <\/code><\/pre>\n
  \u043f\u0440\u0438\u043c\u0435\u0440 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 HealthConstraint   <\/p>\n
@Target({ElementType.METHOD, ElementType.FIELD}) @Retention(RetentionPolicy.RUNTIME) @Constraint(validatedBy=HealthConstraintValidator.class) public @interface HealthConstraint {     String message() default \"{health.documents}\";     Class<?>[] groups() default {};     Class<? extends Payload>[] payload() default {}; } <\/code><\/pre>\n
  \u043f\u0440\u0438\u043c\u0435\u0440 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 HealthConstraintValidator   <\/p>\n
public class HealthConstraintValidator implements ConstraintValidator<HealthConstraint, Documents> {     @Override     public boolean isValid(Documents documents, ConstraintValidatorContext constraintValidatorContext) {         return documents.contains(\"\u0441\u043f\u0440\u0430\u0432\u043a\u0430 1\");     } } <\/code><\/pre>\n
  \u0434\u043b\u044f ProfessionalConstraint \u0432\u0441\u0435 \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u043e<\/p>\n
  \u0414\u0430\u043b\u0435\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0442\u044c \u0442\u0430\u043a:  <\/p>\n
    @Test     public void healthAndProfessionalValidators() {         final Person person = new Person(\"\u0418\u0432\u0430\u043d \u041f\u0435\u0442\u0440\u043e\u0432\", 45);         person.setHealthDocuments(new Documents(Arrays.asList(\"\u0441\u043f\u0440\u0430\u0432\u043a\u0430 1\", \"\u0441\u043f\u0440\u0430\u0432\u043a\u0430 3\")));         person.setProfessionalDocuments(new Documents(Arrays.asList(\"\u0442\u0435\u0441\u0442 1\", \"\u0442\u0435\u0441\u0442 4\")));          \/\/ \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043d\u0430 \u0437\u0434\u043e\u0440\u043e\u0432\u044c\u0435         Set<ConstraintViolation<Person>> validates = validator.validate(person, Health.class);         Assert.assertTrue(validates.size() == 0);                  \/\/ \u0438 \u0435\u0441\u043b\u0438 \u0437\u0434\u043e\u0440\u043e\u0432\u044c\u0435 \u041e\u043a, \u0442\u043e \u043f\u0440\u043e\u0444. \u0442\u0435\u0441\u0442         validates = validator.validate(person, Professional.class);         Assert.assertTrue(validates.size() == 0);                      }  <\/code><\/pre>\n
  \u041f\u043e\u0434\u043e\u0431\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u043d\u0443\u0436\u043d\u044b \u043a\u043e\u0433\u0434\u0430 \u043c\u044b \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c \u0434\u0430\u043d\u043d\u044b\u0435 \u0438\u0437 \u0444\u0430\u0439\u043b\u0430, web service \u0438 \u0434\u0440. \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u0432.   <\/p>\n
\u043a\u043b\u0430\u0441\u0441 Documents<\/b><\/p>\n
\n
public class Documents {      private List<String> tests = new ArrayList();      public Documents(List<String> tests) {         this.tests.addAll(tests);     }      public boolean contains(String test) {         return this.tests.contains(test);     } } <\/code><\/pre>\n
  <\/div>\n<\/div>\n
Validation c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Spring<\/h3>\n
  \u0412 Spring \u0435\u0441\u0442\u044c \u0442\u0430\u043a \u0436\u0435 \u0441\u0432\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 Validator <\/p>\n
(org.springframework.validation.Validator)<\/p><\/blockquote>\n
 \u043a\u0430\u043a \u0438 \u0432 Java <\/p>\n
(javax.validation.Validator)<\/p><\/blockquote>\n
 \u0438 \u0438\u043c\u0435\u043d\u043d\u043e \u0435\u0433\u043e \u0438\u043c\u043f\u043b\u0435\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u0442\u043e \u0443\u0436\u0435 \u043d\u0435 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0439 \u043f\u043e\u0434\u0445\u043e\u0434, \u043d\u043e \u0432 \u043d\u0435\u043c \u0435\u0441\u0442\u044c \u0441\u0432\u043e\u044f \u0433\u0438\u0431\u043a\u043e\u0441\u0442\u044c \u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u0435\u043c\u043e\u0441\u0442\u044c. \u0414\u043b\u044f \u0442\u043e\u0433\u043e \u0436\u0435 \u0431\u0438\u043d\u0430, \u0441\u0434\u0435\u043b\u0430\u044e \u0442\u0443\u0436\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u0432\u043e\u0437\u0440\u0430\u0441\u0442\u0430.
  \u041f\u0435\u0440\u0435\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0432 \u0434\u0432\u0430 \u043c\u0435\u0442\u043e\u0434\u0430, \u0434\u0435\u043b\u0430\u0435\u043c \u0432\u0430\u043b\u0438\u0434\u0430\u0446\u0438\u044e  <\/p>\n
@Service public class PersonValidator implements Validator {     @Override     public boolean supports(Class<?> aClass) {         return Person.class.equals(aClass);     }      @Override     public void validate(Object obj, Errors errors) {         Person p = (Person) obj;         if (p.getAge() < 0) {             errors.rejectValue(\"age\", \"value.negative\");         }     } } <\/code><\/pre>\n
  value.negative \u2014 \u0442\u0430\u043a \u0436\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043a\u043b\u044e\u0447\u043e\u043c \u0432 \u0444\u0430\u0439\u043b\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439, public boolean supports<\/code> \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0442\u0438\u043f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u043a\u043b\u0430\u0441\u0441\u0430. 
  \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 DataBinder
  \u041f\u0440\u0438\u043c\u0435\u0440:  <\/p>\n
@RunWith(SpringRunner.class) @SpringBootTest public class DemoJValidationApplicationTests { \/\/ \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c \u0444\u0430\u0439\u043b \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439     private static final ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();     static {         messageSource.setBasename(\"message\");     }         @Autowired        private PersonValidator personValidator;  \t@Test \tpublic void testValidators() { \t\tfinal Person person = new Person(\"\u0418\u0432\u0430\u043d \u041f\u0435\u0442\u0440\u043e\u0432\", -4500);  \t\tfinal DataBinder dataBinder = new DataBinder(person); \t\tdataBinder.addValidators(personValidator); \t\tdataBinder.validate();                  Assert.assertTrue(dataBinder.getBindingResult().hasErrors());  \t\tif (dataBinder.getBindingResult().hasErrors()) { \t\t\tdataBinder.getBindingResult().getAllErrors().stream(). \t\t\t\t\tforEach(e -> System.out.println(messageSource \t\t\t\t\t\t\t.getMessage(e, Locale.getDefault()))); \t\t} \t} } <\/code><\/pre>\n
  \u0411\u0443\u0434\u0443\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u044b \u0432\u0441\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u043c\u043f\u043b\u0435\u043c\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043b\u0438 org.springframework.validation.Validator \u0434\u043b\u044f \u043a\u043b\u0430\u0441\u0441\u0430 Person
  \u041c\u043e\u0436\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0442\u0430\u043a \u0436\u0435 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0432\u0430\u043b\u0438\u0434\u0430\u0442\u043e\u0440\u043e\u0432, dataBinder.addValidators, \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043a\u043e\u043c\u043f\u043e\u0437\u0438\u0446\u0438\u044e \u043f\u0440\u0430\u0432\u0438\u043b (\u0432\u044b\u0437\u043e\u0432 \u0438\u0437 \u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u0430, \u0434\u0440\u0443\u0433\u043e\u0433\u043e), \u043f\u0440\u0438\u043c\u0435\u0440:  <\/p>\n
public class OtherValidator implements Validator {      @Override     public boolean supports(Class<?> aClass) {         return Person.class.equals(aClass);     }      @Override     public void validate(Object obj, Errors errors) {         \/\/ ...     } } \/\/--------- @Service public class PersonValidator implements Validator {      \/**      *  \u0434\u0440\u0443\u0433\u043e\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430      *\/         @Autowired     private OtherValidator otherValidator;      @Override     public void validate(Object obj, Errors errors) {         Person p = (Person) obj;         if (p.getAge() < 0) {             errors.rejectValue(\"age\", \"value.negative\");         }         \/\/ \u0438\u0437 \u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u0430\u0432\u0438\u043b\u0430, \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u043c \u0434\u0440\u0443\u0433\u043e\u0435         otherValidator.validate(obj, errors);     } } <\/code><\/pre>\n
  \u042f \u043f\u043e\u0447\u0435\u043c\u0443 \u0442\u043e \u043e\u0436\u0438\u0434\u0430\u043b, Spring \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0435 \u0432 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f\u0445, \u043d\u043e \u043d\u0435\u0442, \u044d\u0442\u043e\u0442 \u0432\u044b\u0437\u043e\u0432 \u043d\u0430\u0434\u043e \u0434\u0435\u043b\u0430\u0442\u044c \u0441\u0430\u043c\u043e\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u043d\u043e.
  \u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u0430
  \"image\"  <\/p>\n
pom \u0444\u0430\u0439\u043b<\/b><\/p>\n
\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?> <project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" \txsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\"> \t<modelVersion>4.0.0<\/modelVersion>  \t<groupId>com.example<\/groupId> \t<artifactId>DemoJSRvalidation<\/artifactId> \t<version>0.0.1-SNAPSHOT<\/version> \t<packaging>jar<\/packaging>  \t<name>DemoJSRvalidation<\/name> \t<description>Demo project for Spring Boot JSR-303 validation<\/description>  \t<parent> \t\t<groupId>org.springframework.boot<\/groupId> \t\t<artifactId>spring-boot-starter-parent<\/artifactId> \t\t<version>2.0.5.RELEASE<\/version> \t\t<relativePath\/> <!-- lookup parent from repository --> \t<\/parent>  \t<properties> \t\t<project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding> \t\t<project.reporting.outputEncoding>UTF-8<\/project.reporting.outputEncoding> \t\t<java.version>1.8<\/java.version> \t<\/properties>  \t<dependencies> \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-validation<\/artifactId> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-test<\/artifactId> \t\t\t<scope>test<\/scope> \t\t<\/dependency> \t<\/dependencies>  \t<build> \t\t<plugins> \t\t\t<plugin> \t\t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t\t<artifactId>spring-boot-maven-plugin<\/artifactId> \t\t\t<\/plugin> \t\t<\/plugins> \t<\/build>   <\/project> <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  <\/p>\n
Java & Spring<\/h3>\n
  \u041e\u0447\u0435\u0432\u0438\u0434\u043d\u043e \u044f \u0437\u0430\u0445\u043e\u0447\u0443 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u0432\u0430 \u043f\u043e\u0434\u0445\u043e\u0434\u0430 \u0432 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u2014 Java \u0438 Spring, \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u0438\u0442\u044c \u0438\u0445 \u043c\u043e\u0436\u043d\u043e, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0432 Spring validator \u0432\u044b\u0437\u043e\u0432 javax.validation.Validator<\/i> 
  \u041f\u0440\u0438\u043c\u0435\u0440  <\/p>\n
import javax.validation.Validator;  @Service public class PersonValidator implements org.springframework.validation.Validator {      \/\/ javax.validation.Validator     @Autowired     private Validator validator;      @Override     public boolean supports(Class<?> aClass) {         return Person.class.equals(aClass);     }      @Override     public void validate(Object obj, Errors errors) {         Set<ConstraintViolation<Object>> validates = validator.validate(obj);          for (ConstraintViolation<Object> constraintViolation : validates) {             String propertyPath = constraintViolation.getPropertyPath().toString();             String message = constraintViolation.getMessage();             errors.rejectValue(propertyPath, \"\", message);         }          Person p = (Person) obj;         if (p.getAge() < 0) {             errors.rejectValue(\"age\", \"only.positive.numbers\");         }     } } <\/code><\/pre>\n
  \u0421 \u043f\u043e\u043c\u043e\u0449\u044c\u044e spring \u0434\u0435\u043b\u0430\u0435\u043c injection javax.validation.Validator<\/code>
  @Autowired
   private Validator validator; 
  <\/code>\u0434\u0430\u043b\u0435\u0435 \u043d\u0430 \u043c\u0435\u0442\u043e\u0434\u0435 public void validate(Object obj, Errors errors)<\/code> 
  \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 java, \u0430 \u0437\u0430\u0442\u0435\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c \u0432\u0441\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0434\u043b\u044f \u043a\u043b\u0430\u0441\u0441\u0430 Person \u043d\u0430 spring org.springframework.validation.Validator.
  \u0417\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u0442\u0430\u043a\u0436\u0435 \u0447\u0435\u0440\u0435\u0437 spring  <\/p>\n
    @Test     public void testValidators() {         final Person person = new Person(\"\u0418\u0432\u0430\u043d\", -4500);          final DataBinder dataBinder = new DataBinder(person);         dataBinder.addValidators(personValidator);         dataBinder.validate();          if (dataBinder.getBindingResult().hasErrors()) {            dataBinder.getBindingResult().getAllErrors()          \/\/ .... <\/code><\/pre>\n
   \u0442\u0435\u043f\u0435\u0440\u044c \u0432 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u0438 \u0431\u0443\u0434\u0443\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043e\u0442 \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0439 java \u0438 spring (org.springframework.validation.Validator) \u0434\u043b\u044f Person 
  \u0412\u044b\u0432\u043e\u0434 \u0432 \u043a\u043e\u043d\u0441\u043e\u043b\u0438
  \u041e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 (\u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f)<\/i>
  \u041d\u0435 \u0431\u043e\u043b\u0435\u0435 3-\u0445 \u0437\u043d\u0430\u043a\u043e\u0432 (\u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f)<\/i>
  \u0422\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u043b\u043e\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0447\u0438\u0441\u043b\u043e (spring)<\/i><\/code>
  \u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u0430
  \"image\"  <\/p>\n
Spring MVC <\/h3>\n
  \u041a\u043e\u043d\u0435\u0447\u043d\u043e \u0442\u0435\u043f\u0435\u0440\u044c \u044d\u0442\u043e \u0432\u0441\u0435 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u0442\u044c \u0432 web \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438.
  \u0414\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0432 \u043f\u0440\u043e\u0435\u043a\u0442 Controller, jsp \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0443 (\u0442\u0443\u0442 \u043a\u0441\u0442\u0430\u0442\u0438 \u043c\u043e\u0433\u0443\u0442 \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0441\u0442\u0440\u0430\u043d\u0438\u0446 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e freeMarker, \u0438 \u0434\u0440.), css \u0441\u0442\u0438\u043b\u044c, pom \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c. \u0418 \u0442\u0430\u043a \u043f\u043e \u043f\u043e\u0440\u044f\u0434\u043a\u0443
  1) MVC Controller  <\/p>\n
import org.springframework.validation.Validator;  @Controller public class DemoJValidationController {      @Autowired     @Qualifier(\"personValidator\") \/\/ spring validator     private Validator personValidator;      @InitBinder     protected void initBinder(WebDataBinder binder) {         binder.setValidator(personValidator);     }      @GetMapping(\"\/\")     public String savePersonAction(ModelMap model) {         model.addAttribute(\"person\", new Person(null, null));         return \"personEdit\";     }      @RequestMapping(value = \"\/save\", method = RequestMethod.POST)     public String savePersonAction(             @Valid @ModelAttribute(\"person\") Person person,             BindingResult bindingResult, Model model) {         if (bindingResult.hasErrors()) {             return \"personEdit\"; \/\/ to person.jsp page         }          model.addAttribute(\"name\", person.getName());         model.addAttribute(\"age\", person.getAge());         return \"saveSuccess\"; \/\/ to saveSuccess.jsp page     }      @RequestMapping(value = \"\/edit\", method = RequestMethod.POST)     public String editPersonAction(ModelMap model) {         model.addAttribute(\"person\", new Person(null, null));         return \"personEdit\"; \/\/ to personEdit.jsp page;     }  } <\/code><\/pre>\n
  \u0417\u0434\u0435\u0441\u044c \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e spring injection \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d PersonValidator
   @Autowired
   @Qualifier(\"personValidator\") \/\/ spring validator
   private Validator personValidator;
  <\/code>
  \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u043c PersonValidator \u0432 initBinder 
   @InitBinder
   protected void initBinder(WebDataBinder binder) {
   binder.setValidator(personValidator);
   }
  <\/code>
  \u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0438\u043d\u0438\u0446\u0438\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0430\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u0438 @Valid<\/code>
  \u0412 \u044d\u0442\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e spring \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430, \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0431\u0443\u0434\u0443\u0442 \u043f\u0440\u043e\u0438\u0433\u043d\u043e\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u044b. 
  \u0415\u0441\u043b\u0438 \u0443\u0431\u0440\u0430\u0442\u044c \u0438\u0437 \u043a\u043e\u0434\u0430
   @InitBinder
   protected void initBinder(WebDataBinder binder) <\/code>
  \u0442\u043e \u043d\u0430\u043e\u0431\u043e\u0440\u043e\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u0441\u044f \u0432\u0441\u0435 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, \u0430 spring \u0431\u0443\u0434\u0443\u0442 \u043f\u0440\u043e\u0438\u0433\u043d\u043e\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u044b.
  \u0427\u0442\u043e \u0431\u044b \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0432\u0441\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0438 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0435 \u0438 spring, \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0441\u0442\u0443\u043f\u0438\u0442\u044c \u0442\u0430\u043a: 
  \u0423\u0431\u0440\u0430\u0442\u044c @InitBinder, \u043e\u0441\u0442\u0430\u0432\u0438\u0442\u044c injection
   @Autowired
   @Qualifier(\"personValidator\") \/\/ spring validator
   private Validator personValidator;
  <\/code>
  \u0438 \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0432\u044b\u0437\u043e\u0432 spring \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0440\u0443\u0447\u043d\u0443\u044e
   \/\/ spring validate
   personValidator.validate(person, bindingResult);
  <\/code>\u0412\u043e\u0442 \u043a\u043e\u0434:  <\/p>\n
@Controller public class DemoJValidationController {      @Autowired     @Qualifier(\"personValidator\") \/\/ spring validator     private Validator personValidator;     \/\/...     @RequestMapping(value = \"\/save\", method = RequestMethod.POST)     public String savePersonAction(             @Valid @ModelAttribute(\"person\") Person person,             BindingResult bindingResult, Model model) {         \/\/ spring validate         personValidator.validate(person, bindingResult);          if (bindingResult.hasErrors()) {             return \"personEdit\"; \/\/ to person.jsp page         }          model.addAttribute(\"name\", person.getName());         model.addAttribute(\"age\", person.getAge());         return \"saveSuccess\"; \/\/ to saveSuccess.jsp page     } } <\/code><\/pre>\n
  \u0442.\u0435. \u0432 bindingResult \u0431\u0443\u0434\u0443\u0442 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u0435\u0449\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043e\u0442 spring :-), \u0447\u0442\u043e \u0438 \u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c! 
  \u041f\u0440\u0438\u0432\u044f\u0437\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 jsp \u0438 \u043c\u043e\u0434\u0435\u043b\u0438, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0430\u0442\u0440\u0438\u0431\u0443\u0442\u043e\u043c — modelAttribute=\"person\"<\/code> \u0412 \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0430 SpringMVC\u2019s Form Tag Library.
  \u041e\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u044b \u044d\u0442\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u0430:  <\/p>\n
DemoJValidationApplication<\/b><\/p>\n
\n
@SpringBootApplication @ImportResource(\"classpath:configuration.xml\") public class DemoJValidationApplication {  \tpublic static void main(String[] args) { \t\tSpringApplication.run(DemoJValidationApplication.class, args); \t} }<\/code><\/pre>\n
  <\/div>\n<\/div>\n
  Spring configuration  <\/p>\n
configuration.xml<\/b><\/p>\n
\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?> <beans xmlns=\"http:\/\/www.springframework.org\/schema\/beans\"        xmlns:mvc=\"http:\/\/www.springframework.org\/schema\/mvc\"        xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" xmlns:beans=\"http:\/\/www.springframework.org\/schema\/c\"        xsi:schemaLocation=\"         http:\/\/www.springframework.org\/schema\/beans         http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd         http:\/\/www.springframework.org\/schema\/mvc         http:\/\/www.springframework.org\/schema\/mvc\/spring-mvc.xsd\">       <bean id=\"messageSource\" class=\"org.springframework.context.support.ReloadableResourceBundleMessageSource\">         <property name=\"basename\" value=\"classpath:message\"\/>         <property name=\"defaultEncoding\" value=\"UTF-8\"\/>     <\/bean>      <mvc:annotation-driven\/>     <mvc:resources mapping=\"\/resources\/**\" location=\"classpath:\/META-INF\/resources\/\"\/> <\/beans> <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  <\/p>\n
personEdit.jsp<\/b><\/p>\n
\n
<%@ page language=\"java\"          contentType=\"text\/html; charset=UTF-8\"          pageEncoding=\"UTF-8\"%> <%@ taglib prefix=\"form\" uri=\"http:\/\/www.springframework.org\/tags\/form\" %> <%@ taglib prefix=\"c\" uri=\"http:\/\/java.sun.com\/jsp\/jstl\/core\" %> <html> <head>     <link href=\"<c:url value=\"\/resources\/my.css\" \/>\" rel=\"stylesheet\">     <title>Person<\/title> <\/head> <body> <h3>     Enter Person. <\/h3>      <form:form method=\"POST\" modelAttribute=\"person\" action=\"save\">         <div>         Name:         <form:input path=\"name\"\/>         <form:errors path=\"name\" cssClass=\"error\"\/>         <\/div>          <div>         Age:         <form:input path=\"age\"\/>         <form:errors path=\"age\" cssClass=\"error\"\/>         <\/div>          <button type=\"submit\">Registration<\/button>     <\/form:form>  <\/body> <\/html> <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  <\/p>\n
saveSuccess.jsp<\/b><\/p>\n
\n
<%@ page language=\"java\"          contentType=\"text\/html; charset=UTF-8\"          pageEncoding=\"UTF-8\"%> <%@ taglib prefix=\"form\" uri=\"http:\/\/www.springframework.org\/tags\/form\" %> <%@ taglib prefix=\"c\" uri=\"http:\/\/java.sun.com\/jsp\/jstl\/core\" %> <html> <head>     <link href=\"<c:url value=\"\/resources\/my.css\" \/>\" rel=\"stylesheet\">     <title>Person Saved Successfully<\/title> <\/head> <body> <h3>     Person Saved Successfully. <\/h3>  <form:form method=\"POST\" modelAttribute=\"person\" action=\"edit\">     <div>         ${name}     <\/div>     <div>         ${age}     <\/div>     <button type=\"submit\">Edit<\/button> <\/form:form> <\/body> <\/html> <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  <\/p>\n
my.css<\/b><\/p>\n
\n
span.error {     color: red; } form div{     margin: 5px; } <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  <\/p>\n
pom \u0444\u0430\u0439\u043b<\/b><\/p>\n
\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?> <project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" \txsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\"> \t<modelVersion>4.0.0<\/modelVersion>  \t<groupId>com.example<\/groupId> \t<artifactId>DemoJSRvalidation<\/artifactId> \t<version>0.0.1-SNAPSHOT<\/version> \t<packaging>jar<\/packaging>  \t<name>DemoJSRvalidation<\/name> \t<description>Demo project for Spring Boot JSR-303 validation<\/description>  \t<parent> \t\t<groupId>org.springframework.boot<\/groupId> \t\t<artifactId>spring-boot-starter-parent<\/artifactId> \t\t<version>2.0.5.RELEASE<\/version> \t\t<relativePath\/> <!-- lookup parent from repository --> \t<\/parent>  \t<properties> \t\t<project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding> \t\t<project.reporting.outputEncoding>UTF-8<\/project.reporting.outputEncoding> \t\t<java.version>1.8<\/java.version> \t<\/properties>  \t<dependencies> \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-validation<\/artifactId> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-test<\/artifactId> \t\t\t<scope>test<\/scope> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t<artifactId>spring-boot-starter-web<\/artifactId> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.hibernate<\/groupId> \t\t\t<artifactId>hibernate-validator<\/artifactId> \t\t\t<version>4.1.0.Final<\/version> \t\t<\/dependency>  \t\t<dependency> \t\t\t<groupId>org.apache.tomcat.embed<\/groupId> \t\t\t<artifactId>tomcat-embed-jasper<\/artifactId> \t\t<\/dependency> \t\t<dependency> \t\t\t<groupId>javax.servlet<\/groupId> \t\t\t<artifactId>jstl<\/artifactId> \t\t<\/dependency> \t<\/dependencies>  \t<build> \t\t<plugins> \t\t\t<plugin> \t\t\t\t<groupId>org.springframework.boot<\/groupId> \t\t\t\t<artifactId>spring-boot-maven-plugin<\/artifactId> \t\t\t<\/plugin>  \t\t<\/plugins> \t<\/build> <\/project> <\/code><\/pre>\n
  <\/div>\n<\/div>\n
  \u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u0430
  \"image\"
  \u0420\u0430\u0431\u043e\u0442\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f
  \"image\"
  \u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b
  Bean Validation specification<\/a><\/div>\n