JAVA网络编程技术与实践-清华大学出版社-光盘源码

清华大学出版社java网络编程经典书籍光盘源码

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）） {
				// 装载sqlserver驱动
				Class.forName（“com.microsoft.sqlserver.jdbc.SQLServerDriver“）;
			} else if （“oracle“.equalsIgnoreCase（strDBType）） {
				// 装载oracle驱动
				Class.forName（“oracle.jdbc.driver.OracleDriver“）;
			} else if （“mysql“.equalsIgnoreCase（strDBType）） {
				// 装载oracle驱动
				Class.forName（“org.gjt.mm.mysql.Driver“）;
			}
			// 获得连接
			con = DriverManager.getConnection（strUrl strUserName strPassword）;
		} catch （Exception e） {
			e.printStackTrace（）;
		}
		return con;
	}

	public static void closeConnection（Connection con） {
		if （con != null） { // 连接非空
			try {
				if （!con.isClosed（）） {// 连接处于打开状态
					con.close（）;
				}
			} catch （Exception e） {
				e.printStackTrace（）;
			}
		}
	}
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     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

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