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求助JAVA连接MYSQL数据库的问题

热度:288   发布时间:2008-06-08 19:25:05.0
求助JAVA连接MYSQL数据库的问题
//DatabaseConnection.java

package mypackage;

import java.sql.*;

public class DatabaseConnection {

    public static void main(String [] args)
    {
        String driver = "com.MySQL.jdbc.Driver";
        String url = "jdbc:MySQL://localhost/mydatabase";
        String  user = "root";
        String password = "123456";
            
        
        try
        {
            Class.forName(driver);
            Connection con = DriverManager.getConnection(url,user,password);                        
            String insert = "insert friends(id,name) values(?,?)";
            PreparedStatement prestatement = con.prepareStatement(insert);
           String [] names = {"Rachel","Rose","Phoebe","Monica","Chandler","Joey"};
           for(int i = 0;i < 6;i++ )
           {
            prestatement.setInt(1,i);
            prestatement.setString(2,names);
            prestatement.execute();
            }            
            
            String query = "select * from friends";
            ResultSet result = prestatement.executeQuery(query);
            
            System.out.println("The Results is:");
            while (result.next())
            {
                System.out.println(result.getString("name"));
            }
            con.close();
            
        }catch(SQLException e)
        {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }
   
}



错误信息如下:
java.lang.ClassNotFoundException: com.MySQL.jdbc.Driver
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at mypackage.DatabaseConnection.main(DatabaseConnection.java:17)

请各位高手帮忙看看这个错误是什么原因导致的好吗/??
谢谢哈~~~~~~~~~~~
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----------------解决方案--------------------------------------------------------
你下载了  mysql-connector-java-5.1.6-bin.jar  么?

当然不一定要这个版本

附件放到  java安装目录的jre\lib\ext下,要解压先

[[it] 本帖最后由 freish 于 2008-6-8 19:40 编辑 [/it]]
----------------解决方案--------------------------------------------------------
谢谢你哈~~~~~~~~~~`
----------------解决方案--------------------------------------------------------
怎么好象还是不可以呢??
好象还是一样的啊~~~~~~~~~~~~
还是选择了这个驱动的
还是不行
郁闷啊~~~~~~~~~~~~~~~~~~``
----------------解决方案--------------------------------------------------------
你是用什么的开发工具?如果是用开发工具如:Eclipse的话,请把mysql的数据库驱动把这一个jar包加载到自己的项目工程中,错误是提示说找不到com.MySQL.jdbc.Driver这一个驱动,
还有的是,是不是com.MySQL.jdbc.Driver这一个类名路径写错了?是不是应该是com.mysql.jdbc.Driver才对啊
----------------解决方案--------------------------------------------------------
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