MyBatis入门实例 ——DaoImpl.java

import java.util.ArrayList;
import java.util.List;

import org.apache.ibatis.session.SqlSession;

import com...common.db.MyBatisUtil;
import com...common.exception.CodeConstant;
import com...common.exception.DAORuntimeException;
import com...common.utils.Paged;

public class UserDaoImpl {
 /**
  * @Title: deleteUser
  * @Description: 删除用户
  * @param userId
  * @return void
  * @throws
  */
 public void deleteUser(String userId) {
             // 获得SqlSession的实例
             // 每个线程都应该有它自己的SqlSession实例。SqlSession的实例不能被共享，也是线程不安全的。因此最佳的范围是请求或方法范围。
  SqlSession sqlSession = MyBatisUtil.getSqlSessionFactory().openSession();
  try {
              UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
              userMapper.deleteUser(userId);
              sqlSession.commit();
         }

 catch (Exception e) {
               throw new DAORuntimeException("");
        }

  finally {
                sqlSession.close();
       }
   }

}