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>> 连接MySQL数据库 [<a href=http://www.jsp001.com/forum/showthread.php?goto=newpost&threadid=66>查看别人的评论</a>]<br>
<hr><p>由 webmaster 发布于: 2001-01-20 16:43</p><p> </p><p>程序来源：iamafan@263.net<br><br><br>（编者按：由于是网上剪贴而来，html标记少了<...>，我没有补上）<br><br> <br><br>与数据库联接是做为WEB程序最基本的功能之一，JSP作为稳定的WEB PROGRAM，其数据库联接部分继承了JAVA的JDBC接口。使用起来与JDBC可以说是完全一致的。下面给出相应的例程，数据库服务器使用MYSQL，联接的驱动使用 mm.mysql.driver ，可以到 java.sun.com 的驱动程序库中查找相应的下载站点。 <br><br><br>使用JSP插入数据的例程 <br><br>html <br>head <br>titleThis is title/title <br>/head <br>body <br><%@ page import="java.sql.*" %> <br><% <br>//告诉编译器使用SQL包 <br>%> <br><% <br>try{ <br>Class.forName("org.gjt.mm.mysql.Driver"); <br>//加载 mm.mysql.driver <br>} catch (java.lang.ClassNotFoundException e) <br>//如果加载时出错，给出相应的错误信息 <br>{ <br>out.print("Class not found exception occur. Message is:"); <br>out.print(e.getMessage()); <br>} <br><br>try{ <br>Connection con; <br>Statement stmt; <br>ResultSet rs; <br>con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test?user=root;password="); <br>//创建数据库联接，这样的做法类似于M$的ASP中的创建数据库联接。 <br>stmt = con.createStatement(); <br>stmt.executeUpdate("INSERT INTO mytable (col1,col2) VALUES ('This is a test string',32)"); <br>//执行插入数据的操作 <br>rs = stmt.executeQuery("SELECT * FROM mytable"); <br>//把数据库中所有的数据读出来 <br>while (rs.next()) <br>{ <br>String s1 = rs.getString(1); <br>String s2 = rs.getString(2); <br>out.println("col1="+s1+"--col2="+s2+"br"); <br>//打印所显示的数据 <br>} <br>} catch (SQLException e) { <br>//如果SQL语句执行的过程中出错，则显示出相应的错误信息 <br>out.print("SQL Exception occur. Message is:"); <br>out.print(e.getMessage()); <br>} <br>%> <br><br>/body <br>/html<br><br></p></td>
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