Controller 작성 실습 1/3

1) /mvcexam/plusform에 요청을 보내면 웹 브라우저에 2개의 값을 입력받을 수 있는 입력창과 버튼이 있는 화면 출력

2) /mvcexam/plus로 2개의 입력값을 서버에 전달, 두 값의 합을 JSP에 request scope로 전달

준비과정 1) 프로젝트 생성

📌 Archtype을 webapp으로 설정
📌 프로젝트 이름은 mvcexam으로 설정

준비과정 2) pom.xml 파일 설정

<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 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>kr.or.connect</groupId>
	<artifactId>mvcexam</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>mvcexam Maven Webapp</name>
	<url>http://maven.apache.org</url>
	
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<spring.version>4.3.5.RELEASE</spring.version>
	</properties>
	<dependencies>
		<!-- Spring -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>


		<!-- Servlet, JSP, JSTL -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>javax.servlet.jsp-api</artifactId>
			<version>2.3.1</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
	</dependencies>
	<build>
		<finalName>mvcexam</finalName>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.6.1</version>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

준비과정 3) settings 설정

Navigator 탭 - .settings 폴더 - org.eclipse.wst.common.project.facet.core.xml

<installed facet="jst.web" version="3.1"/> 버전을 다음과 같이 변경