스프링 프레임워크(Spring Framework)-Spring Web MVC

개발 환경

java 21.0.4 2024-07-16 LTSJava(TM) SE Runtime Environment (build 21.0.4+8-LTS-274)

Java HotSpot(TM) 64-Bit Server VM (build 21.0.4+8-LTS-274, mixed mode, sharing)

 

Tomcatv 10.1

EclipseVersion: 2024-06 (4.32.0)Build id: 20240606-1231

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프로젝트 생성

"Dynamic Web Project"를 생성합니다.

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프로젝트 변환

"Dynamic Web Project"를 "Maven Project"로 변환 합니다.

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pom.xml

"<dependencies>"를 추가합니다.

<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>
	<groupId>com.thumbnail</groupId>
	<artifactId>thumbnail</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<build>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.8.1</version>
				<configuration>
					<release>21</release>
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-war-plugin</artifactId>
				<version>3.2.3</version>
			</plugin>
		</plugins>
	</build>

	<dependencies>
		<!--https://mvnrepository.com/artifact/org.springframework/spring-webmvc-->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>6.1.11</version>
		</dependency>
		<!--https://mvnrepository.com/artifact/org.springframework/spring-context-->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>6.1.11</version>
		</dependency>

		<!--https://mvnrepository.com/artifact/jakarta.servlet/jakarta.servlet-api-->
		<dependency>
			<groupId>jakarta.servlet</groupId>
			<artifactId>jakarta.servlet-api</artifactId>
			<version>6.0.0</version>
			<scope>provided</scope> <!-- 배포 시에는 포함되지 않습니다. -->
		</dependency>

		<!--https://mvnrepository.com/artifact/jakarta.servlet.jsp.jstl/jakarta.servlet.jsp.jstl-api-->
		<dependency>
			<groupId>jakarta.servlet.jsp.jstl</groupId>
			<artifactId>jakarta.servlet.jsp.jstl-api</artifactId>
			<version>3.0.0</version>
		</dependency>
		<!--https://mvnrepository.com/artifact/org.glassfish.web/jakarta.servlet.jsp.jstl-->
		<dependency>
			<groupId>org.glassfish.web</groupId>
			<artifactId>jakarta.servlet.jsp.jstl</artifactId>
			<version>3.0.1</version>
		</dependency>
	</dependencies>
</project>

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web.xml

"<!-- ContextLoaderListener -->", "<!-- DispatcherServlet -->", "<!-- 한글 깨짐 설정(텍스트 인코딩) -->"

 을 추가합니다.

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="https://jakarta.ee/xml/ns/jakartaee"
	xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
	id="WebApp_ID" version="5.0">
	<display-name>com.thumbnail</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.jsp</welcome-file>
		<welcome-file>default.htm</welcome-file>
	</welcome-file-list>

	<!-- ContextLoaderListener -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>

	<!-- DispatcherServlet -->
	<servlet>
		<servlet-name>dispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:dispatcherServlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>dispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<!-- 한글 깨짐 설정(텍스트 인코딩) -->
	<filter>
		<filter-name>encodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

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resources 폴더 생성

"/src/main/resources" 폴더를 생성합니다.

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applicationContext.xml

"/src/main/resources" 폴더에 "applicationContext.xml" 파일을 추가합니다.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="
           http://www.springframework.org/schema/beans 
           https://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/context 
           https://www.springframework.org/schema/context/spring-context.xsd
           http://www.springframework.org/schema/mvc 
           https://www.springframework.org/schema/mvc/spring-mvc.xsd
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx.xsd">


</beans>

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dispatcherServlet.xml

"/src/main/resources" 폴더에 "dispatcherServlet.xml" 파일을 추가합니다.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
           http://www.springframework.org/schema/beans 
           https://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/context 
           https://www.springframework.org/schema/context/spring-context.xsd
           http://www.springframework.org/schema/mvc 
           https://www.springframework.org/schema/mvc/spring-mvc.xsd">

	<!-- spring MVC annotation(@)을 사용하기 위한 설정 -->
	<mvc:annotation-driven />

	<!-- controller 를 처리할 view 위치 및 확장자명 설정 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/views/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
	<!-- base-package 속성에 지정된 패키지와 그 하위 패키지에 있는 모든 클래스를 스캔합니다. -->
	<context:component-scan base-package="com.thumbnail" />

</beans>

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controller

"com.thumbnail.controller" 패키지를 생성한 후 "ThumbnailController.java"을 추가합니다.

package com.thumbnail.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class ThumbnailController {
	
	@RequestMapping(value="/thumbnail", method=RequestMethod.GET)
	public ModelAndView thumbnail() {
		ModelAndView modelAndView = new ModelAndView("thumbnail");
		
		return modelAndView;
	}
	
}

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View

"WEB-INF"-> "views" 폴더를 생성한 후 "thumbnail.jsp" 파일을 추가합니다.

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"
    isELIgnored="false"%>
    
<%@ taglib prefix="c" uri="jakarta.tags.core"%>
<c:set var="jakarta" value="jakarta taglib" />
     
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	${ jakarta }
</body>
</html>

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Context root 설정

프로젝트 선택 후 마우스 우클릭을 합니다.

"Context root"를 " / "로 수정합니다.

 

"Tomcat Server"를  "Clean" 후 "Restart" 합니다.

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호출

http://localhost:8080/thumbnail

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파일 구조