JDBC
在以前的文章中,豆腐曾经讲过一种用JDBC-ODBC Bridge 来连接数据库的文章 一个 连接数据库的 javaBean(可在 Jsp 中调用),由于这样连接数据库的效率是 很低的,所以大家其实实际在使用的时候都是用的JDBC,现在我就给大家来说说如何在Win2K下使用JDBC 来连接 MySql的文章
首先是mySQL的JDBC驱动程序的下载,下载地址在:http://download.sourceforge.net/pub/mirrors/mysql/Downloads/Contrib/mm.mysql.jdbc-1.2c.tar.gz
下载结束后,把这个zip文件随意解压到任意的目录,我们假设目录是:d:\jdbc,ok!下面我们来设置ClassPAth 以保证我们的WebServer能够访问到这个驱动程序
设置方法如下:
1.我的电脑->系统->设置环境变量 如果已经有ClassPAth 就编辑,否则增加一个ClassPAth
2.设置ClassPAth的值:d:\jdbc\mm.mysql.jdbc-1.2c\mysql_comp.jar
3.重新启动 服务器
等到启动完成后,即可
JDBC 设置完成以后,很多的人可能还不是很清楚我们的JDBC 是否真正的安装成功了,我们就用一个JDBC联结MySQl的程序来检测一下 看我们是否是真正的安装成功了 代码如下:
java.sql.Connection conn;
java.lang.String strConn;
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
sqlConn= java.sql.DriverManager.getConnection("jdbc:mysql://localhost/test","root","");
%>
代码虽然简单,但是却已经完成了我们测试MySql JDBC 安装的成功与否。
本篇文章的完成,多亏了 东方一蛇 的大力帮助,在此 表示感谢。
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