Java中的import

例:
package servlet;
 
 import javax.naming.Context;
 import javax.sql.DataSource;
 import javax.naming.InitialContext;
 //import org.apache.log4j.Logger;
 import org.apache.*;
 import java.sql.*;
 public  class Dbconn{
  //private static Logger log=Logger.getLogger(Dbconn.class);
  public static Connection conn = null;
  public Context initCtx = null;
  public static  Connection getConn() {
    try {
     conn = DriverManager.getConnection("proxool.cityrcPool");
     if(conn==null){System.out.print("+++++++++++++++++++++++");}else{
      System.out.print("________________________");
     }
     //log.info("============获取Connection===========");
    } catch (Exception e) {
     //log.info("============不能获取Connectiot========");
     e.printStackTrace();
    }
    finally{
    }
    return conn;
 
  }
}
我在另一个类中:
import servlet.*;
我就可以调用了:
Connection con=Dbcon.getConn()