[求助]为什么驱动程序找不到??
我装的是MySQL,用java做的连接数据库
package db;
import java.sql.*;
public class opendb
{
String DBDriver = "com.mysql.jdbc.Driver";
String ConnStr = "jdbc:mysql://localhost:3306/sample_db?user=root&password=star&useUnicode=true&characterEncoding=GB2312";
Connection conn = null;
ResultSet rs = null;
public opendb()
{
try{
Class.forName(DBDriver);
}catch(java.lang.ClassNotFoundException e)
{
System.err.println("opendb(): "+e.getMessage());
}
catch(Exception ex)
{
System.err.println(ex.getStackTrace());
}
}
public ResultSet executeQuery(String sql)
{
rs = null;
try{
conn = DriverManager.getConnection(ConnStr);
Statement stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
}
catch(SQLException sqle)
{
System.err.println("SQL.exception: "+sqle.getMessage());
}
return rs;
}
public static void main(String args[])
{
opendb db = new opendb();
ResultSet rs1 = db.executeQuery("select * from custom");
}
}
但是显示:
opendb(): com.mysql.jdbc.Driver
SQL.exception: No suitable driver
驱动找不到,我在classpath中已经设置了
c:\lib\mysql-connector-java-3.0.9-stable-bin.jar
这是为什么?谢谢!