【Spring+JDBC+DBCP】JdbcTemplate使用例子

引用

1. BaseDAO.java

public interface BaseDAO {
	public void updatePerson(Person person);
	public List<Map<String, Object>> searchPersons();
	public Map<String, Object> searchPerson(Person person);
}

2. PersonDAO.java

import java.util.Map;
import javax.sql.DataSource;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import springinaction.base.BaseDAO;
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:section5/sec5.xml"})

public class PersonDAO implements BaseDAO{

	@Autowired
	@Qualifier("dataSource")
	private DataSource dataSource;
	private static final String SEARCH_ALL = "select * from person";
	private static final String SEARCH_BY_ID = "select * from person where id = ?";
	private static final String UPDATEBYID = "update person set age = ? where id = ?";
	   
	private JdbcTemplate jdbcTemplate;
	   
	public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}

	public void updatePerson(Person person) {
		jdbcTemplate.update(UPDATEBYID, new Object[]{person.getAge(), person.getId()});
	}

	public List<Map<String, Object>> searchPersons() {
		return jdbcTemplate.queryForList(SEARCH_ALL);
	}  
	
	public Map<String, Object> searchPerson(Person person) {
		return jdbcTemplate.queryForMap(SEARCH_BY_ID, person.getId());
	}
	
}

3. PersonTest.java

import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import springinaction.base.BaseDAO;
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:section5/sec5.xml"})

public class PersonTest {

	   @Autowired
	   @Qualifier("person")
	   private Person person;

	   @Autowired
	   @Qualifier("personDAO")
	   private BaseDAO personDAO;
	   
	   List<Map<String, Object>> resultList = null;
	   Map<String, Object> resultmap = null;
	   
	   @Test
	   public void updatePersonTest() {
		   person.setId(2);
		   person.setAge(3);
		   personDAO.updatePerson(person);
		   
		   resultmap = personDAO.searchPerson(person);
		   System.out.println(resultmap);
	   }

	   @Test
	   public void searchPersonsTest() {
		   resultList = personDAO.searchPersons();
		   System.out.println(resultList);
	   } 
}

4.sec5.xml

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
   		<property name="url" value="jdbc:mysql://localhost/test" />
   		<property name="username" value="root" />
   		<property name="password" value="1111" />
   		<property name="initialSize" value="5" />
   		<property name="maxActive" value="10" />
	</bean>
       
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource" ref="dataSource" />
	</bean>
    
    <bean id="person" class="springinaction.section5.Person"/>
    
    <bean id="personDAO" class="springinaction.section5.PersonDAO">
    	<property name="jdbcTemplate" ref="jdbcTemplate"/>
    </bean>