package?net.db;

import?java.sql.*;

public?class?DBManager?{
	public?static?Connection?openConnection（String?strDBType?String?strUrl
			String?strUserName?String?strPassword）?{
		Connection?con?=?null;
		try?{
			if?（“sqlserver“.equalsIgnoreCase（strDBType））?{
				//?裝載sqlserver驅動
				Class.forName（“com.microsoft.sqlserver.jdbc.SQLServerDriver“）;
			}?else?if?（“oracle“.equalsIgnoreCase（strDBType））?{
				//?裝載oracle驅動
				Class.forName（“oracle.jdbc.driver.OracleDriver“）;
			}?else?if?（“mysql“.equalsIgnoreCase（strDBType））?{
				//?裝載oracle驅動
				Class.forName（“org.gjt.mm.mysql.Driver“）;
			}
			//?獲得連接
			con?=?DriverManager.getConnection（strUrl?strUserName?strPassword）;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
		}
		return?con;
	}

	public?static?void?closeConnection（Connection?con）?{
		if?（con?!=?null）?{?//?連接非空
			try?{
				if?（!con.isClosed（））?{//?連接處于打開狀態
					con.close（）;
				}
			}?catch?（Exception?e）?{
				e.printStackTrace（）;
			}
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????226??2008-01-19?11:16??chap03\UDPSocket\.classpath

?????文件????????385??2008-01-19?11:16??chap03\UDPSocket\.project

?????文件???????2346??2008-01-19?11:16??chap03\UDPSocket\thread\udp\ClientBean.class

?????文件???????2434??2008-01-19?11:16??chap03\UDPSocket\thread\udp\ClientBean.java

?????文件???????2602??2008-01-19?11:16??chap03\UDPSocket\thread\udp\ServerBean.class

?????文件???????2498??2008-01-19?11:16??chap03\UDPSocket\thread\udp\ServerBean.java

?????文件???????1576??2008-01-19?11:16??chap03\UDPSocket\thread\udp\UDPClient.class

?????文件???????1061??2008-01-19?11:16??chap03\UDPSocket\thread\udp\UDPClient.java

?????文件????????732??2008-01-19?11:16??chap03\UDPSocket\thread\udp\UDPServer.class

?????文件????????304??2008-01-19?11:16??chap03\UDPSocket\thread\udp\UDPServer.java

?????文件????????967??2008-01-19?11:16??chap03\UDPSocket\udp\DataGramHelper.class

?????文件????????460??2008-01-19?11:16??chap03\UDPSocket\udp\DataGramHelper.java

?????文件???????1805??2008-01-19?11:16??chap03\UDPSocket\udp\UDPClient.class

?????文件???????1313??2008-01-19?11:16??chap03\UDPSocket\udp\UDPClient.java

?????文件???????2211??2008-01-19?11:16??chap03\UDPSocket\udp\UDPServer.class

?????文件???????1322??2008-01-19?11:16??chap03\UDPSocket\udp\UDPServer.java

?????文件????????295??2008-01-19?11:16??chap03\UDPSocket_readme.txt

?????文件????????726??2008-01-19?11:16??chap04\applet\.classpath

?????文件????????382??2008-01-19?11:16??chap04\applet\.project

?????文件?????????15??2008-01-19?11:16??chap04\applet\au.properties

?????文件???????4041??2008-01-19?11:16??chap04\applet\Audiapplet.class

?????文件???????3899??2008-01-19?11:16??chap04\applet\Audiapplet.java

?????文件?????????17??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\au.properties

?????文件???????4220??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\Audiapplet.class

?????文件???????3990??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\Audiapplet.java

?????文件?????238431??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\fresh.au

?????文件????????141??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\java.policy.applet

?????文件????????750??2008-01-19?11:16??chap04\applet\com\study\applet\Audiapplet\StartPageForAudiapplet.html

?????文件?????????17??2008-01-19?11:16??chap04\applet\com\study\applet\Imgapplet\image.properties

?????文件???????2330??2008-01-19?11:16??chap04\applet\com\study\applet\Imgapplet\Imgapplet.class

............此處省略603個文件信息