DataSource问题
package tourism.db.util;
import java.sql.SQLException;
import java.sql.Connection;
import javax.sql.DataSource;
public class ConnectionPool
{
private DataSource ds;
private static ConnectionPool mySelf;
private ConnectionPool(DataSource ds){
this.ds=ds;
}
public static void init(DataSource ds){
myself=new ConnectionPool(ds);
}
public static ConnectionPool getInstance(){
if(mySelf==null) {
throw new IllegalStateException("Pool not initialized");
}
return mySelf;
}
public Connection getConnection() throws SQLException{
return ds.getConnection();
}
}
这个程序为什么编译不过,说找不到
import javax.sql.DataSource;