二、工具类

 1 public class MyBatisUtil {
 2     private static SqlSessionFactory factor = null;
 3 
 4     static {
 5         try {
 6             factor = new SqlSessionFactoryBuilder()
 7                     .build(Resources.getResourceAsStream("mybatis.xml"));
 8         } catch (IOException e) {
 9             e.printStackTrace();
10         }
11     }
12 
13     public static SqlSession getSession(){
14         SqlSession session = null;
15         if(factor!=null) {
16             session = factor.openSession();
17         }
18         return session;
19     }
20 
21     public static void commit(int num,SqlSession session){
22         if(num>0){
23             // 提交事务
24             session.commit();
25             System.out.println("SUCCESS!");
26         }else {
27             // 回滚事务
28             session.rollback();
29             System.out.println("FAILED!");
30         }
31     }
32 }