连接MYSQL数据库问题

[liyuncdc]

Class.forName("org.gjt.mm.mysql.Driver").newInstance();
String url =new String();
url ="mysql://localhost:3306/jb_test?user=root&password=19850503&useUnicode=true&characterEncoding=gb2312";
//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 t1";

ResultSet rs=stmt.executeQuery(sql);
String tt="";
while(rs.next()){
tt = rs.getString("name");
jLabel1.setText(tt);

}


调试时当“Connection conn = DriverManager.getConnection(url);”进入异常
DRIVER已经设置正确..请问是什么问题

[wizardblue2]

异常贴出来看

[liyuncdc]

可以了。。THANKS ALL THE SAME
我 把url ="jdbc:mysql://localhost:3306/jb_test?
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
改为Class.forName("mysql.Driver").newInstance();就可以

[fiore]

建议使用连接池

[火龙果被占用了]

应该是 com.jdbc.mysql.Driver 吧，org.gjt.mm.mysql.Driver 是为了兼容以前版本的 JDBC 而保留的，可能不支持游标操作。

[free_zk]

package test;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class T1 {
public static void main(String[] args) throws Exception {
Class.forName("com.mysql.jdbc.Driver").newInstance();
String url = "jdbc:mysql://localhost:3306/test?user=root&password=xfu5188";
Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
}
}