同一个数据库，为啥我用ACCESS和MYSQL访问时两次结果不一样
用MSSQL:<%@ page language="java" import="java.sql.*" pageEncoding="gb2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>IV型驱动访问MySQL数据库</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head>
<body>
<%
String driverClass="com.mysql.jdbc.Driver";
String url="jdbc:mysql://localhost:3306/db_database08?"+
"useUnicode=true&characterEncoding=GBK";
String username = "root";
String password = "";
Class.forName(driverClass); // 加载数据库驱动
Connection conn=DriverManager.getConnection(url, username, password); //建立连接
Statement stmt=conn.createStatement();
ResultSet rs = stmt.executeQuery("select * from tb_user"); //执行SQL语句
while(rs.next()){
out.println("<br>用户名："+rs.getString(2)+" 密码:"+rs.getString(3));
}
rs.close();
stmt.close();
conn.close();
%>
</body>
</html>得出结果为：
用户名：wgh 密码:111
用户名：?? 密码:111
用户名：?? 密码:123456
用MSSQL:<%@ page language="java" import="java.sql.*" pageEncoding="gb2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>IV型驱动访问MySQL数据库</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head>
<body>
<%
String driverClass="com.mysql.jdbc.Driver";
String url="jdbc:mysql://localhost:3306/db_database08?"+
"useUnicode=true&characterEncoding=GBK";
String username = "root";
String password = "";
Class.forName(driverClass); // 加载数据库驱动
Connection conn=DriverManager.getConnection(url, username, password); //建立连接
Statement stmt=conn.createStatement();
ResultSet rs = stmt.executeQuery("select * from tb_user"); //执行SQL语句
while(rs.next()){
out.println("<br>用户名："+rs.getString(2)+" 密码:"+rs.getString(3));
}
rs.close();
stmt.close();
conn.close();
%>
</body>
</html>得出结果为：
用户名：wgh 密码:111
用户名：?? 密码:111
用户名：?? 密码:123456
E:\jsp\.metadata\.me_tcat\webapps\visitDB URL:jdbc:odbc:driver={Microsoft Access Driver (*.mdb)};DBQ=E:\jsp\.metadata\.me_tcat\webapps\visitDB\db_database08.mdb
用户名：wgh11 密码：111
用户名：3sg 密码：111
而我的数据库就是上面两个数据，用MYSQL怎么会得出3个数据呢。
mysql写的代码？我理解是这个意思，连接mysql的代码能否连接和操作access如果用ado的话，修改下数据库连接参数，应该还是可以的
omg!!!