ibatis3初步学习

sqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//ibatis.apache.org//DTD Config 3.0//EN"
                       "http://ibatis.apache.org/dtd/ibatis-3-config.dtd">  
<configuration>
	<properties resource="com/ibatis3/conf/jdbc.properties" />
	<settings>
		<setting name="cacheEnabled" value="true"/>
		<setting name="lazyLoadingEnabled" value="true"/>
		<setting name="multipleResultSetsEnabled" value="true"/>
		<setting name="useColumnLabel" value="true"/>
		<setting name="useGeneratedKeys" value="false"/>
		<!-- <setting name="enhancementEnabled" value="false"/> -->
		<setting name="defaultExecutorType" value="SIMPLE"/>
		<setting name="defaultStatementTimeout" value="25000"/>
	</settings>
    <typeAliases>
    	<typeAlias type="com.ibatis3.bean.BookBean" alias="bookBean"/>
    </typeAliases>	
    <environments default="development">  
        <environment id="development">  
            <transactionManager type="JDBC"/>  
            <dataSource type="UNPOOLED">  
                <property name="driver" value="${oracle.driver}"/>  
                <property name="url" value="${oracle.url}"/>  
                <property name="username" value="${oracle.username}"/>  
                <property name="password" value="${oracle.password}"/>  
            </dataSource>  
        </environment>  
    </environments>  
    <mappers>  
        <mapper resource="com/ibatis3/dao/sql/bookSqlMapper.xml"/>  
    </mappers>  
</configuration>

bookSqlMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper  
    PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN"  
    "http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd">
<mapper namespace="book">
	<select id="selectBook" resultType="bookBean">
		select 
		BOOKID AS book_id,
		BOOKNAME AS book_name,
		BOOKAUTHER AS book_author
		from BOOKS 
	</select>
</mapper>

BookBean.java

package com.ibatis3.bean;

import java.io.Serializable;

public class BookBean implements Serializable{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private String book_id;
	private String book_name;
	private String book_author;
	public String getBook_id() {
		return book_id;
	}
	public void setBook_id(String book_id) {
		this.book_id = book_id;
	}
	public String getBook_name() {
		return book_name;
	}
	public void setBook_name(String book_name) {
		this.book_name = book_name;
	}
	public String getBook_author() {
		return book_author;
	}
	public void setBook_author(String book_author) {
		this.book_author = book_author;
	}
	
}

BookDao.java

package com.ibatis3.dao;

import java.util.List;

import com.ibatis3.bean.BookBean;

public interface BookDao {

	public BookBean selectBook(String id);
	
	public List<BookBean> queryBook();
	
}

BookDaoImpl.java

package com.ibatis3.dao.impl;

import java.util.List;

import com.ibatis3.bean.BookBean;
import com.ibatis3.dao.BookDao;
import com.ibatis3.utils.IbatisSessionFactory;

public class BookDaoImpl extends IbatisSessionFactory implements BookDao{

	@Override
	public List<BookBean> queryBook() {
		return this.getSession().selectList("book.selectBook");
	}

	@Override
	public BookBean selectBook(String id) {
		// TODO Auto-generated method stub
		return null;
	}

}

IbatisSessionFactory.java

package com.ibatis3.utils;

import java.io.Reader;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class IbatisSessionFactory {
	
    public SqlSessionFactory buildSqlSessionFactory() {
        try {
            String resource = "com/ibatis3/conf/sqlMapConfig.xml";
            Reader reader = Resources.getResourceAsReader(resource);
            return new SqlSessionFactoryBuilder().build(reader);
        } catch (Exception e) {
            logger.warn("failed to build SqlSessionFactory: ", e);
            e.printStackTrace();
            return null;
        }
    }

    public SqlSession getSession(){
    	return buildSqlSessionFactory().openSession();
    }
    
    private static Logger logger = LoggerFactory.getLogger(IbatisSessionFactory.class);
}

IbatisTest.java

package com.ibatis3.test;

import java.util.Iterator;
import java.util.List;

import com.ibatis3.bean.BookBean;
import com.ibatis3.dao.BookDao;
import com.ibatis3.dao.impl.BookDaoImpl;

public class IbatisTest {

	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		BookDao bookDao = new BookDaoImpl();
		List<BookBean> list = bookDao.queryBook();
		for(Iterator<BookBean> it = list.iterator();it.hasNext();){
			BookBean bean = it.next();
			System.out.print(bean.getBook_id()+" , ");
			System.out.print(bean.getBook_name()+" , ");
			System.out.println(bean.getBook_author()+" , ");
		}
	}

}