레이어드 아키텍처 (3) 방명록 실습 설정파일

Minkyeong Kim·2021년 12월 4일
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[boostcourse] Web-Backend

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1) pom.xml 파일 작성

<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>guestbook</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>guestbook 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>
  	<!-- jackson -->
  	<jackson2.version>2.8.6</jackson2.version>
  </properties>
  
  <dependencies>
    <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>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</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>2.3.1</version>
			<scope>provided</scope>
		</dependency>

		<!-- https://mvnrepository.com/artifact/jstl/jstl -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
    
    <dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>
	<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.45</version>
		</dependency>
    <dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-dbcp2</artifactId>
			<version>2.1.1</version>
		</dependency>
	<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>${jackson2.version}</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.datatype</groupId>
			<artifactId>jackson-datatype-jdk8</artifactId>
			<version>${jackson2.version}</version>
		</dependency>
  </dependencies>
  <build>
    <finalName>guestbook</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>

2) Dynamic Web Module 버전 3.1로 변경

Navigator 탭에서 .settings/org.eclipse.wst.common.project.facet.core.xml 파일 수정

<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
  <fixed facet="wst.jsdt.web"/>
  <installed facet="wst.jsdt.web" version="1.0"/>
  <installed facet="java" version="1.8"/>
  <installed facet="jst.web" version="3.1"/>
</faceted-project>

3) WebMvcContextConfig 클래스 생성

package kr.or.connect.guestbook.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages= {"kr.or.connect.guestbook.controller"})
public class WebMvcContextConfiguration extends WebMvcConfigurerAdapter {
	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		//특정 url 요청은 폴더에서 읽어오도록 설정
		registry.addResourceHandler("/css/**").addResourceLocations("/css/").setCachePeriod(31556926);
        registry.addResourceHandler("/img/**").addResourceLocations("/img/").setCachePeriod(31556926);
        registry.addResourceHandler("/js/**").addResourceLocations("/js/").setCachePeriod(31556926);
	}
	
	@Override
	public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
		// default Servlet Handler 사용 활성화
		// 매핑 정보가 없는 URL 요청 들어왔을 때 DefaultServletHttpRequestHandler가 처리
		configurer.enable();
	}
	
	@Override
	public void addViewControllers(final ViewControllerRegistry registry) {
		// 특정 URL에 대한 처리를 컨트롤러 작성 없이 매핑하도록 함
		System.out.println("addViewController가 호출됩니다.");
		registry.addViewController("/").setViewName("index");
	}
	
	@Bean
	public InternalResourceViewResolver getInternalResourceViewResolver() {
		InternalResourceViewResolver resolver = new InternalResourceViewResolver();
		resolver.setPrefix("/WEB-INF/views/");
		resolver.setSuffix(".jsp");
		return resolver;
	}	
}

4) DBConfig 클래스 생성

package kr.or.connect.guestbook.config;

import javax.sql.DataSource;

import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.TransactionManagementConfigurer;

@Configuration
@EnableTransactionManagement //트랜잭션 관련 설정 자동으로 함
public class DBConfig implements TransactionManagementConfigurer {
	
	//DB 연결 정보 설정
	private String driverClassName = "com.mysql.jdbc.Driver";
	private String url = "jdbc:mysql://localhost:3306/connectdb?useUnicode=true&characterEncoding=utf8";
	private String username = "connectuser";
	private String password = "connect123!@#";
	
	@Bean
	public DataSource dataSource() {
		BasicDataSource dataSource = new BasicDataSource();
		dataSource.setDriverClassName(driverClassName);
		dataSource.setUrl(url);
		dataSource.setUsername(username);
		dataSource.setPassword(password);
		//DB정보를 dataSource 형식으로 반환
		return dataSource;		
	}
	
	//사용자 간의 트랜잭션 처리를 위한 PlatformTransactionManager설정하기 위해 메소드 오버라이드
	//트랜
	@Override
	public PlatformTransactionManager annotationDrivenTransactionManager() {
		// TODO Auto-generated method stub
		return transactionManager(); // PlatformTransactionManager를 반환하는 함수
	}
	
	@Bean
	public PlatformTransactionManager transactionManager() {
		return new DataSourceTransactionManager(dataSource());
	}
	
}

5) ApplicationConfig 클래스 생성

  • DBConfig, ApplicationConfig -> 비즈니스 로직쪽에서 사용됨
package kr.or.connect.guestbook.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

@Configuration
//dao, service에 구현된 Component 읽어옴
@ComponentScan(basePackages= {"kr.or.connect.guestbook.dao", "kr.or.connect.guestbook.service"})
//DBConfig
@Import({DBConfig.class})
public class ApplicationConfig {
}

6) web.xml 작성

<?xml version="1.0" encoding="UTF-8"?>
<web-app>

	<display-name>Spring JavaConfig Sample</display-name>
	<context-param>
		<param-name>contextClass</param-name>
		<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext
		</param-value>
	</context-param>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>kr.or.connect.guestbook.config.ApplicationConfig
		</param-value>
	</context-param>
	<listener>
	<!-- Context가 로딩될 때 context-param의 설정 파일을 읽어들여 실행 -->
		<listener-class>org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>

	<servlet>
		<servlet-name>mvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<init-param>
			<param-name>contextClass</param-name>
			<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext
			</param-value>
		</init-param>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>kr.or.connect.guestbook.config.WebMvcContextConfiguration
			</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>mvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<filter>
	<!-- 요청이 수행되기 전, 응답이 나가기 전 한번씩 수행할 수 있도록 함 -->
		<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>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

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레이어드 아키텍처 (2) 방명록 실습 요구사항

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