[SpringWebMVC] - 디스패처서블릿, 프로젝트 세팅 (공통부분)

Dispatcher Servlet

• 제일 앞단에서 HTTP Request를 처리하는 Controller
• Spring MVC에서는 HTTP Request가 왔을 때 DispatcherServlet이라 불리는 서블릿이 HTTP Request를 처리할 Controller을 지정한다.
• DispatcherServlet은 일종의 HTTP Request를 처리할 Controller을 지정하는 Controller로 Super Controller 역할을 한다.
  *이렇게 앞쪽에서 처리하는 컨트롤러를 두는 패턴을 Front Controller 패턴이라고 한다.

Maven 프로젝트로 변환

pom.xml 설정

	</build>

	<!-- 라이브러리 버전관리 -->
	<properties>
		<javax.servlet-version>4.0.1</javax.servlet-version>
		<javax.servlet.jsp-version>2.3.3</javax.servlet.jsp-version>
		<javax.servlet.jsp.jstl-version>1.2</javax.servlet.jsp.jstl-version>
		<org.springframework-version>5.2.2.RELEASE
		</org.springframework-version>
	</properties>
	<!-- 라이브러리 셋팅 -->
	<dependencies>
		<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>${javax.servlet-version}</version>
			<scope>provided</scope>
		</dependency>
		<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>javax.servlet.jsp-api</artifactId>
			<version>${javax.servlet.jsp-version}</version>
			<scope>provided</scope>
		</dependency>
		<!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/jstl -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>${javax.servlet.jsp.jstl-version}</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${org.springframework-version}</version>
		</dependency>
	</dependencies>

</project>