dbcp写连接池 Demo

 1 public static DataSource ds;//变量
 2     public TestBasicDataSource() {}    //私有化构造函数
 3     static{
 4         try{
 5         Properties p=new Properties();
 6         p.load(TestBasicDataSource.class.getClassLoader().getResourceAsStream("pro.properties"));//读取配置文件（TestBasicDataSource为所在类）
 7         ds=new BasicDataSourceFactory().createDataSource(p);//获取DataSource
 8         }
 9         catch (Exception e){}
10     }
11     
12     public static Connection getConn()
13     {
14         Connection conn=null;
15         try {
16             conn= ds.getConnection();//获取连接
17         } catch (SQLException e) {
18             e.printStackTrace();
19         }
20         
21         return conn;
22     }
23     
24     public static DataSource GetDataSource()
25     {
26         return ds;//返回DataSource
27     }