⛏️/Spring
[Spring] 개발 환경 구축(DB 연결)
defyuil
2023. 11. 30. 14:46
개발 환경 구축
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee https://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.itwillbs</groupId>
<artifactId>web</artifactId>
<name>SpringStudy</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.11</java-version>
<org.springframework-version>4.3.8.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<!-- @Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- 외부 라이브러리 추가 -->
<!-- https://mvnrepository.com/artifact/com.mysql/mysql-connector-j -->
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<version>8.0.32</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.zaxxer/HikariCP -->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>5.0.1</version>
</dependency>
<!-- 외부 라이브러리 추가 -->
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.11</source>
<target>1.11</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
root-context.xml
<!-- dataSource : 디비연결 -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/springdb"/>
<property name="username" value="root"/>
<property name="password" value="1234"/>
</bean>
<!-- dataSource : 디비연결 -->
<!-- sqlSessionFactory : 디비연결, 데이터처리(SQL실행,Mybatis설정) -->
<bean id="sqlSessionFactory"
class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:/mybatis-config.xml"/>
</bean>
<!-- sqlSessionFactory : 디비연결, 데이터처리(SQL실행,Mybatis설정) -->
MyBatisTest
package com.itwillbs.web;
import javax.inject.Inject;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(
locations = {"file:src/main/webapp/WEB-INF/spring/root-context.xml"}
)
public class MyBatisTest {
// 디비연결, mybatis 사용 => sqlSessionFactoryBean 객체 필요
@Inject
private SqlSessionFactory sqlFactory;
@Test
public void mybatis연결테스트() {
System.out.println(sqlFactory);
//SqlSession session = sqlFactory.openSession();
//session.insert(statement);
}
}
DataSourceTest
package com.itwillbs.web;
import java.sql.Connection;
import java.sql.SQLException;
import javax.inject.Inject;
import javax.sql.DataSource;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* 디비연결 테스트 (Spring - DataSource 사용) *
*/
// @RunWith(SpringJUnit4ClassRunner.class)
// => 스프링으로 테스트하도록 세팅
//@ContextConfiguration(
// locations = {"file:src/main/webapp/WEB-INF/spring/root-context.xml"}
// )
// => 스프링에서 설정해놓은 파일의 정보를 불러오기
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(
locations = {"file:src/main/webapp/WEB-INF/spring/root-context.xml"}
)
public class DataSourceTest {
// 디비 연결 정보가 필요함 => 디비 연결정보를 의존하고 있음 (의존관계-주입)
//@Inject : 의존관계의 객체를 주입하는 어노테이션
//@Inject
@Autowired
private DataSource ds;
// @Test 테스트 하고자하는 메서드에 작성 / 미작성시 no runnable method 오류 발생
@Test
public void dataSourceTest() {
System.out.println(" 의존객체 주입 성공 여부 확인! ");
System.out.println(ds);
}
@Test
public void 디비연결테스트() {
try {
Connection con = ds.getConnection();
System.out.println(" 디비연결 성공! ");
System.out.println( con );
} catch (SQLException e) {
e.printStackTrace();
}
}
}
MysqlConnectTest
package com.itwillbs.web;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import org.junit.Test;
/**
* mysql데이터베이스 연결을 테스트하기위한 클래스
*/
public class MysqlConnectTest {
// 디비연결 정보
private static final String DRIVER ="com.mysql.cj.jdbc.Driver";
private static final String DBURL ="jdbc:mysql://localhost:3306/springdb";
private static final String DBID ="root";
private static final String DBPW ="1234";
// @Test : 테스트 하고자하는 내용을 메서드 안에 작성후
// 해당 어노테이션을 작성하면, Junit이 해당코드를
// 테스트용 코드로 인식하고 자동 실행 및 테스트 진행
@Test
public void testConnection() {
try {
// 1. 드라이버 로드
Class.forName(DRIVER);
System.out.println(" 드라이버 로드 성공! ");
// 2. 디비 연결
Connection con = DriverManager.getConnection(DBURL, DBID, DBPW);
System.out.println(" 디비연결 성공! ");
System.out.println(" con : "+con);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally {
System.out.println(" 자원해제 코드 작성 ");
}
// try-with(1.7~ 사용) => try,catch,finally 한번에 처리하는 동작
// =>AutoCloseable 인터페이스를 구현한 객체를 try()안에 작성하면
// 사용후 자동으로 자원해제 처리
try(Connection con = DriverManager.getConnection(DBURL, DBID, DBPW);) {
System.out.println(" 디비연결 성공2! ");
} catch (SQLException e) {
e.printStackTrace();
}
}
}
hikariCP를 사용하여 DB 연결
https://mvnrepository.com/artifact/com.zaxxer/HikariCP/5.1.0
root-context.xml
<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.3.xsd
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<!-- Root Context: defines shared resources visible to all other web components -->
<!-- 프로젝트 전반의 설정을 준비하는 곳(웹 제외) -->
<!-- hikariCP : 연결정보 저장객체 -->
<bean id="hikariConfig"
class="com.zaxxer.hikari.HikariConfig">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/springdb"/>
<property name="username" value="root" />
<property name="password" value="1234"/>
</bean>
<!-- hikariCP : 연결정보 저장객체 -->
<!-- dataSource(CP): 디비연결 -->
<bean id="dataSource"
class="com.zaxxer.hikari.HikariDataSource"
destroy-method="close">
<constructor-arg ref="hikariConfig" />
</bean>
<!-- dataSource(CP) : 디비연결 -->
<!-- dataSource : 디비연결 -->
<!-- <bean id="dataSource" -->
<!-- class="org.springframework.jdbc.datasource.DriverManagerDataSource"> -->
<!-- <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/> -->
<!-- <property name="url" value="jdbc:mysql://localhost:3306/springdb"/> -->
<!-- <property name="username" value="root"/> -->
<!-- <property name="password" value="1234"/> -->
<!-- </bean> -->
<!-- dataSource : 디비연결 -->
<!-- sqlSessionFactory : 디비연결, 데이터처리(SQL실행,Mybatis설정) -->
<bean id="sqlSessionFactory"
class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:/mybatis-config.xml"/>
</bean>
<!-- sqlSessionFactory : 디비연결, 데이터처리(SQL실행,Mybatis설정) -->
<!-- sqlSession : 자동 디비 연결, 데이터처리(SQL실행, Mybatis설정), 자동 자원 해제 처리 -->
<!-- 기본적인 트랜잭션 관리, 쓰레드 처리 안정성 높임 -->
<bean id="sqlSession"
class="org.mybatis.spring.SqlSessionTemplate"
destroy-method="close">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"/>
</bean>
<!-- 자동 디비 연결, 데이터처리(SQL실행, Mybatis설정), 자동 자원 해제 처리 -->
</beans>
MyBatisTest에 구문 추가
@Inject
private SqlSession sqlSession;@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(
locations = {"file:src/main/webapp/WEB-INF/spring/root-context.xml"}
)
public class MyBatisTest {
// 디비연결, mybatis 사용 => sqlSessionFactoryBean 객체 필요
@Inject
private SqlSessionFactory sqlFactory;
@Inject
private SqlSession sqlSession;
@Test
public void mybatis연결테스트() {
System.out.println(sqlFactory);
//SqlSession session = sqlFactory.openSession();
//session.insert(statement);
}