iBATIS入门实例

先写一个小例子入门一下，对iBATIS有一个认识

步骤：

1 建立数据库，创建表（user表，有userid,name,password,department，其中userid为主键，而且自动增长）

2 创建工程，加入相关jar包（常用的，数据库连接的，ibatis相关jar包）

3 创建xml文件（sql-map-config.xml,user.xml）

4 编写代码，测试运行

sql-map-config.xml

Xml代码

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
<transactionManager type="JDBC">
<dataSource type="SIMPLE">
<property value="com.mysql.jdbc.Driver" name="JDBC.Driver"/>
<property value="jdbc:mysql://localhost:3306/ibatis" name="JDBC.ConnectionURL"/>
<property value="root" name="JDBC.Username"/>
<property value="root" name="JDBC.Password"/>
</dataSource>
</transactionManager>
<sqlMap resource="user.xml" />
</sqlMapConfig>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
    "http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<!--(properties?,settings?,resultObjectFactory?,typeAlias*,typeHandler*,transactionManager?,sqlMap+)+-->
<sqlMapConfig>
<transactionManager type="JDBC">
    <dataSource type="SIMPLE">
      <property value="com.mysql.jdbc.Driver" name="JDBC.Driver"/>
      <property value="jdbc:mysql://localhost:3306/ibatis" name="JDBC.ConnectionURL"/>
      <property value="root" name="JDBC.Username"/>
      <property value="root" name="JDBC.Password"/>
    </dataSource>
  </transactionManager>
<sqlMap resource="user.xml" />
</sqlMapConfig>

user.xml

Xml代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap>
<select id="getAllUsers" resultClass="hashmap"
parameterClass="string">
SELECT * FROM USER WHERE DEPARTMENT=#department#
</select>
</sqlMap>

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

<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
   "http://ibatis.apache.org/dtd/sql-map-2.dtd">

<sqlMap>
	<select id="getAllUsers" resultClass="hashmap"
		parameterClass="string">		
		SELECT * FROM USER WHERE DEPARTMENT=#department#
	</select>
</sqlMap>

代码及测试Test.java

Java代码

import com.ibatis.sqlmap.client.*;
import com.ibatis.common.resources.*;
import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;
public class Test {
/**
* @param args
* @throws SQLException
*/
public static void main(String[] args) throws SQLException {
String resource ="SqlMapConfig.xml";
Reader reader;
try {
reader = Resources.getResourceAsReader(resource);
SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);
List list= sqlMap.queryForList("getAllUsers", "Market");
for (int i=0;i<list.size();i++){
System.out.println(list.get(i));
}
} catch (IOException e) {
e.printStackTrace();
}
}
}

import com.ibatis.sqlmap.client.*;
import com.ibatis.common.resources.*;

import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;
public class Test {

	/**
	 * @param args
	 * @throws SQLException 
	 */
	public static void main(String[] args) throws SQLException {
		String resource ="SqlMapConfig.xml";
		Reader reader;
		try {
			reader = Resources.getResourceAsReader(resource);
			SqlMapClient sqlMap = SqlMapClientBuilder.buildSqlMapClient(reader);
			List list= sqlMap.queryForList("getAllUsers", "Market");
			
			for (int i=0;i<list.size();i++){
				System.out.println(list.get(i));
			}			
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

}

sqlMapClient的注入有多种，在实际开发中，可以和spring结合，在dao层注入

转载自： http://crazycat03.iteye.com/blog/537393