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헤르메스 LIFE
[Spring] 개발환경 구축 - Hello World 본문
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Spring 개발환경을 갑자기 구축하려고 하다보니, 막막합니다.
하나 하나 구축해 보겠습니다.
개발환경
Spring 4.3.30.RELEASE
MAVEN 3.8.4
1. New > Maven Project
2. Use default Workspace Location -> 체크 풀고, 경로를 생성합니다.
3. 다시 체크 해줍니다.
4. Group Id, Artifact Id 셋팅
5. Maven 프로젝트가 생성된 모습입니다.
빨간색이 보입니다. 오류 겠죠.
고쳐보겠습니다.
1. SimpleSpring4 프로젝트 > Properties > Project Facets - Default
2. SimpleSpring4 프로젝트 > Properties > Project Facets - Runtimes
3. SimpleSpring4 프로젝트 > Properties > Java Build Path > Libraties > J2SE-1.5 > Remove
4. SimpleSpring4 프로젝트 > Properties > Java Build Path > Libraties > Add Library
4. Alternate JRE > 설치된 jdk 를 선택합니다.
5. jdk 1.8.0_202 버전이 선택되었습니다.
6. Maven > Update Project 선
오류가 사라졌습니다.
pom.xml
<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>Spring4MVC</groupId>
<artifactId>Spring4MVC</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<springframework.version>4.3.30.RELEASE</springframework.version>
<ch.qos.logback-version>1.2.9</ch.qos.logback-version>
<org.slf4j-version>1.7.36</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springframework.version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<!-- logback -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${ch.qos.logback-version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${ch.qos.logback-version}</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId><!-- logback을 slf4j-api에서 사용함을 의미 -->
</exclusion>
</exclusions>
<scope>runtime</scope><!-- runtime 시 사용함 -->
</dependency>
<!-- For user input validation -->
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>
<!-- File Upload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<!-- Thumbnail -->
<dependency>
<groupId>org.imgscalr</groupId>
<artifactId>imgscalr-lib</artifactId>
<version>4.2</version>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.3</version>
</plugin>
</plugins>
</build>
</project>
web.xml
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/javaee
http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<disply-name>SIMPLE-SPRING4</disply-name>
<!-- Processes application requests -->
<!-- HTTP 프로토콜로 들어오는 모든 요청을 가장 먼저 받아 적합한 컨트롤러에 위임해주는 프론트 컨트롤러(Front Controller) -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/config/DispatcherServlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Spring에서 지원하는 Request에 대한 파라메터 값을 인코딩하는 필터 -->
<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>
<!-- Session 시간 지정(Spring) / 분 -->
<!-- HttpOnly는 자바스크립트의 document.cookie를 이용 해 쿠키에 접속하는 것을 막는 옵션이다. -->
<session-config>
<session-timeout>30</session-timeout>
<cookie-config>
<name>JSESSIONID</name>
<path>/</path>
<http-only>true</http-only>
</cookie-config>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
DispatcherServlet.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<mvc:annotation-driven />
<!-- 빈 설정을 어노테이션 기반으로 하겠다는 설정태그 -->
<context:component-scan base-package="simple">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!-- CSS, JS, 이미지 등의 자원은 거의 변하지 않기 때문에, 웹 브라우저에 캐시를 하면
네트워크 사용량, 서버 사용량, 웹 브라우저의 반응 속도 등을 개선할 수 있다. -->
<mvc:resources mapping="/static/**" location="/static/" />
<!--
mvc:default-servlet-handler
요청 경로와 일치하는 컨트롤러를 찾는다.
컨트롤러가 존재하지 않으면, 디폴트 서블릿 핸들러에 전달한다.
DispatcherSerlvet이 처리하지 못한 요청을 DefaultSerlvet에게 넘겨주는 역할을 하는 핸들러
*.css와 같은 컨트롤러에 매핑되어 있지 않은 URL 요청은 최종적으로 Default Servlet에 전달되어 처리하는 역할
web.xml 파일의 dispatcher 가 / 의 경우 설정한다.
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
-->
<mvc:default-servlet-handler />
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
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