<?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>  
  <typeAliases>  
    <typeAlias alias="User" type="com.mybatis.User"></typeAlias>  
  </typeAliases>  
  <environments default="development">  
    <environment id="development">  
      <transactionManager type="JDBC"></transactionManager>  
      <dataSource type="POOLED">  
        <property name="driver" value="oracle.jdbc.driver.OracleDriver" />  
        <property name="url" value="jdbc:oracle:thin:@192.168.0.87:1526:entegor" />  
        <property name="username" value="ideal" />  
        <property name="password" value="ideal" />  
      </dataSource>  
    </environment>  
  </environments>  
  <mappers>  
    <mapper resource="user.xml"/>  
  </mappers>  
</configuration>

<?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="User">  
  <select id="selectUser" parameterType="int" resultType="User">  
    SELECT * FROM user WHERE id = #{id}  
  </select>  
  <select id="selectUsers" resultType="User">  
    SELECT * FROM user  
  </select>  
</mapper>

package com.mybatis;
public class User {
  private int iid;
  private String ifullname;
  private String iloginname;
  private String ipassword;
  public User(){}  
  public User(int id, String name) {  
    this.iid = id;  
    this.ifullname = name;  
  }  
  public String getIfullname() {
    return ifullname;
  }
  public int getIid() {
    return iid;
  }
  public void setIid(int iid) {
    this.iid = iid;
  }
  public void setIfullname(String ifullname) {
    this.ifullname = ifullname;
  }
  public String getIloginname() {
    return iloginname;
  }
  public void setIloginname(String iloginname) {
    this.iloginname = iloginname;
  }
  public String getIpassword() {
    return ipassword;
  }
  public void setIpassword(String ipassword) {
    this.ipassword = ipassword;
  }
}

package com.controller;
import java.io.IOException;
import java.io.Reader;
import java.util.List;
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 com.mybatis.User;
public class Test {
  public static void main(String[] args) throws IOException {
    // TODO Auto-generated method stub
    String resource = "configuration.xml";  
    Reader reader = Resources.getResourceAsReader(resource);  
    SqlSessionFactory ssf = new SqlSessionFactoryBuilder().build(reader);  
    SqlSession session = ssf.openSession();  
    try{  
      User user = session.selectOne("selectUser", 2);  
      System.out.println(user.getIfullname());  
      System.out.println(user);  
      System.out.println("--------------分隔线---------------");  
      List<User> users = session.selectList("selectUsers");  
      for(int i=0; i<users.size(); i++) {  
        System.out.println(users.get(i).getIfullname());  
      }  
    } catch (Exception e) {  
      e.printStackTrace();  
    } finally {  
      session.close();  
    }  
  }
}