I have a simple question..

[DY]

my ENV is Spring Tool Suite 3 and Window 10

when I get Follow this document ( validating-form-input)

• https://spring.io/guides/gs/validating-form-input/

writing pom,xml this code. ..

<?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"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.2.2.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.example</groupId>
	<artifactId>validating-form-input</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>validating-form-input</name>
	<description>Demo project for Spring Boot</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

but i have some error about lib

no lib about javax.validation so, add maven dependency

	<!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
		<dependency>
		    <groupId>javax.validation</groupId>
		    <artifactId>validation-api</artifactId>
		    <version>2.0.1.Final</version>
		</dependency>

and. I can fix redline and error but
this code have another error

submit this data I get result error like this picture

but.. I can pass this data

why same code differ result????

ps.. Sorry my eng skill.. is not good

[DY]

sorry.. i found it.
release version error.. sorry!!