<%@page contentType="text/html;charset=gb2312"%>
<%
//声名
java.sql.Connection sqlConn;
java.sql.Statement sqlStmt;
java.sql.ResultSet sqlRst;
//regiester jdbc driver
String DBUser="sa";
String DBPassword="123456";
String DBServer="192.168.0.73"; // Can't use localhost , you must use IP or CNAME
String DBNAME="learn"; // change to your db name
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
//connect to the database
sqlConn=java.sql.DriverManager.getConnection
("jdbc:mysql://"+DBServer+":3306/"+DBNAME+"?useUnicode=true&characterEncoding=gb2312", DBUser,DBPassword);
//create the driver handle
sqlStmt=sqlConn.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
//excute sql
//sqlRst=sqlStmt.executeQuery("select * from test");
%>
<html>
<head>
</head>
<body>
</body>
</html>
上面这段代码无法运行。。
<%
//声名
java.sql.Connection sqlConn;
java.sql.Statement sqlStmt;
java.sql.ResultSet sqlRst;
//regiester jdbc driver
String DBUser="sa";
String DBPassword="123456";
String DBServer="192.168.0.73"; // Can't use localhost , you must use IP or CNAME
String DBNAME="learn"; // change to your db name
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
//connect to the database
sqlConn=java.sql.DriverManager.getConnection
("jdbc:mysql://"+DBServer+":3306/"+DBNAME+"?useUnicode=true&characterEncoding=gb2312", DBUser,DBPassword);
//create the driver handle
sqlStmt=sqlConn.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
//excute sql
//sqlRst=sqlStmt.executeQuery("select * from test");
%>
<html>
<head>
</head>
<body>
</body>
</html>
上面这段代码无法运行。。
("jdbc:mysql://127.0.0.1:3306/learn?useUnicode=true&characterEncoding=gb2312", "sa","123456"); 1 .我不知道为什么你有这么句话:// Can't use localhost , you must use IP or CNAME 其实 本地服务器一般是写loclahost 或者127.0.0.1 ,非本地的就直接写IP,不过要保证连接。2 .mysql的驱动是要放在comcat的commom>lib下的。最好也放在你的工程的wen-inf>lib目录下, 他是不需要安装的。
这段也不行
已经把那个驱动文件复制到comcat的commom>lib下和工程的wen-inf>lib下了。。<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*"%>
<html>
<body>
<%
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
String url ="jdbc:mysql://localhost/test?user=sa&password=123456&useUnicode=true&characterEncoding=8859_1" ;
//testDB为你的数据库名
Connection conn= DriverManager.getConnection(url);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from table1";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()) {%>
您的第一个字段内容为:<%=rs.getString(1)%>
您的第二个字段内容为:<%=rs.getString(2)%>
<%}%>
<%out.print("数据库操作成功,恭喜你");%>
<%rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
http://www.blogjava.net/rickhunter/category/3664.html