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Spring 부서목록 코드

Framework/Spring

by H_Develop 2022. 9. 7. 18:39

본문

controller > DeptController.java

package controller;

import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import dao.DeptDAO;
import vo.DeptVO;

@Controller // Annotation이 없으면 controller역할을 못한다.
// @Controller annotation이 붙으면 servlet-context.xml 에서만 객체 생성 가능하다
public class DeptController {
	// 부서 DAO로 접근을 목표로 하는 컨트롤러
	DeptDAO dept_dao;
	
	public DeptController(DeptDAO dept_dao) {
		System.out.println(" 컨트롤러 생성됨 ! ");
		this.dept_dao = dept_dao;
	}
	
	@RequestMapping(value= {"/", "/list.do"}) 
	// value= {"/", "/list.do"}, 첫페이지는 항상 m_list.do가 뜨게 만듦
	public String list(Model model) {
		List<DeptVO> list = dept_dao.select();
		model.addAttribute("m_list", list); //DB에서 가져온 list를 model에 저장(바인딩)
		
		return "/WEB-INF/views/dept/dept_list.jsp"; // model이 바인딩 해둔 정보를 dept_list로 전달 (포워딩)
	}

	
}

 

dao > DeptDAO.java

package dao;

import java.util.List;

import org.apache.ibatis.session.SqlSession;

import vo.DeptVO;

public class DeptDAO {
	
	// 맵퍼 접근을 위한 SqlSession 객체가 필요
	SqlSession sqlSession;
	
	public DeptDAO (SqlSession sqlSession) { // 생성자
		this.sqlSession = sqlSession;
		System.out.println("-- DeptDAO의 생성자 --");
		System.out.println("sql : " + this.sqlSession);
		// sqlSession이 null이 아닌지 확인하기 위해 this.sqlSession 프린트
	}
	
	public void setSqlSession(SqlSession sqlSession) {
		this.sqlSession = sqlSession;
	}
	
	//부서목록 조회
	public List<DeptVO> select() {
		// sqlSession. 이후에 붙는 것은 update select delete 상황에 따라 맞춰서 붙여줌
		List<DeptVO> list = sqlSession.selectList("dept.dept_list");
		return list; // 부서 목록이 담긴 list를 controller로 반환
	}

	
}

 

vo > DeptVO.java

package vo;

public class DeptVO {
	// Dept table의 정보를 저장할 클래스
	private int deptno;
	private String dname, loc;
	
	public int getDeptno() {
		return deptno;
	}
	public void setDeptno(int deptno) {
		this.deptno = deptno;
	}
	public String getDname() {
		return dname;
	}
	public void setDname(String dname) {
		this.dname = dname;
	}
	public String getLoc() {
		return loc;
	}
	public void setLoc(String loc) {
		this.loc = loc;
	}
	
}

 

config.mybatis > db.properties, mybatis-config.xml

db.properties

driver=oracle.jdbc.OracleDriver
url=jdbc:oracle:thin:@localhost:1521:xe
user=hr
password=rootoor

 

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "HTTP://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>
	<settings>
		<setting name="cacheEnabled" value="false" />
		<setting name="useGeneratedKeys" value="true" />
		<setting name="defaultExecutorType" value="REUSE" />
	</settings>
	
	<typeAliases>
		<!-- <typeAlias type="vo.BoardVo" alias="board"/> -->
	</typeAliases>
	
	<mappers>
		<mapper resource="config/mybatis/mapper/dept.xml" />
	</mappers>
</configuration>

 

config.mybatis.mapper > dept.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="dept">
	<!-- 부서 목록 조회 -->
	<select id="dept_list" resultType="vo.DeptVO">
		select * from dept
	</select>
</mapper>

 

config.spring.context > context-1-datasource.xml, context-2-mybatis.xml, context-3-dao.xml

context-1-datasource.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"
	xsi:schemaLocation="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-3.1.xsd">
	
	<context:property-placeholder location="classpath:config/mybatis/db.properties"/>
	
	<!-- 
	class 생성, spring이기에 bean / BasicDataSource ds = new BasicDataSource() - <bean id="ds" class="org.apache.commons.dbcp.BasicDataSource">
	ds.setDriverClassName(?) - <property name="driverClassName" />
	db.properties 파일에 driver=oracle.jdbc.OracleDriver - value="${driver}를 가져옴, 
	아래 property도 위와 같음
	-->
	<bean id="ds" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="${driver}" />
		<property name="url" value="${url}" />
		<property name="username" value="${user}" />
		<property name="password" value="${password}" />
		<property name="maxActive" value="10" /> <!-- 최대 접속자 10명으로 지정 -->
	</bean>
	
</beans>

 

context-2-mybatis.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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
	
	<!--
	SqlSessionFactoryBean : Mybatis 서버로 연결
	context-1-datasource.xml 에서 만든 ds 객체 가져오기
	name="configLocation"에 mybatis-config.xml 경로
	-->
	<bean id="factoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
		
		<property name="dataSource" ref="ds"/>
		<property name="configLocation" value="classpath:config/mybatis/mybatis-config.xml"/>
	</bean>
		
	<!-- jsp의 SqlSession을 대체하는 SqlSessionTemplate : mapper로 접근하기 위한 객체 -->
	<bean id="sqlSessionBean" class="org.mybatis.spring.SqlSessionTemplate">
		<constructor-arg ref="factoryBean"/>
	</bean>	
	
</beans>

 

context-3-dao.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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">


	<bean id="dept_dao" class="dao.DeptDAO">
	
	<!-- 
	setter injection : setter를 통해 값을 주입한다.
	<property name="sqlSession" ref="sqlSessionBean" />작성을 해주면
	DeptDAO의 	
	public void setSqlSession(SqlSession sqlSession) {
		this.sqlSession = sqlSession; 코드에 데이터가 생성되면서 노란 밑줄이 사라진다.
		<property name="sqlSession" ref="sqlSessionBean" />
	-->
	
		<!-- constructor injection : 생성자를 통해 값을 주입한다. -->
		<constructor-arg ref="sqlSessionBean"/>
	</bean>
		
		
</beans>

 

config.spring.mvc > servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:beans="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd
		http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

	<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
	
	<!-- Enables the Spring MVC @Controller programming model -->
	<annotation-driven />

	<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
	<resources mapping="/resources/**" location="/resources/" />

	<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<!--
	<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<beans:property name="prefix" value="/WEB-INF/views/" />
		<beans:property name="suffix" value=".jsp" /> 
		
		perfix 경로의 파일은 .jsp를 안붙여도 된다.
		단점은 views 파일에만 다 만들어야 한다. 그래서 위 코드는 안쓴다. 
		
	</beans:bean>
 -->
<!-- 
 	com.korea.db 패키지의 컨트롤러를 자동으로 만들어주는 코드
	<context:component-scan base-package="com.korea.db" />
-->

	<!-- 컨트롤러 수동생성, 생성자로 받아야 하기에 수동으로 생성할 수 밖에 없다. 그래서 위에 코드 삭제 -->
	<beans:bean id="dept_controller" class="controller.DeptController">
<!-- context 3번에서 만든 dept_dao를 DeptDAO 파라미터로 넣어줘야한다. -->
		<beans:constructor-arg ref="dept_dao" />
	</beans:bean>
	
</beans:beans>

 

 

views > dept > dept_list.jsp

<%@ page language="java" contentType="text/html; charset=EUC-KR"
    pageEncoding="EUC-KR"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!-- scriptlib 안쓰려고 위에 짧은 코드로 작성 -->
<!DOCTYPE html>
<html>
<head>
<meta charset="EUC-KR">
<title>Insert title here</title>
</head>
<body>
	부서목록 <br>
	<table border="1">
		<tr>
			<th>부서번호</th>
			<th>부서이름</th>
			<th>부서위치</th>
		</tr>
	
		<c:forEach var="vo" items="${ m_list }">
			<tr>
				<td>${vo.deptno}</td> <!-- getDeptno를 가져오는 것이다 DAO가 아님 -->
				<td>${vo.dname}</td>
				<td>${vo.loc}</td>
			</tr>
		</c:forEach>
	</table>	
</body>
</html>

 

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.edu</groupId>
	<artifactId>app</artifactId>
	<name>2022_0907_SpringDB</name>
	<packaging>war</packaging>
	<version>1.0.0-BUILD-SNAPSHOT</version>
	<properties>
		<java-version>1.6</java-version>
		<org.springframework-version>3.1.1.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>4.7</version>
			<scope>test</scope>
		</dependency>
		
		<!-- commons dbcp -->
		<dependency>
		    <groupId>commons-dbcp</groupId>
		    <artifactId>commons-dbcp</artifactId>
		    <version>1.4</version>
		</dependency>
		
		<!-- mybatis -->
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis</artifactId>
		    <version>3.4.5</version>
		</dependency>
		
		<!-- mybatis spring -->
		<dependency>
		    <groupId>org.mybatis</groupId>
		    <artifactId>mybatis-spring</artifactId>
		    <version>1.3.1</version>
		</dependency>
		
		<!-- spring-jdbc -->
		<dependency>
		    <groupId>org.springframework</groupId>
		    <artifactId>spring-jdbc</artifactId>
		    <version>3.2.2.RELEASE</version>
		</dependency>
		
	</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>1.6</source>
                    <target>1.6</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>

 

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