java连不上mysql_java连不上mysql数据库了= =

代码如下

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import javax.swing.JOptionPane;

public class mysql {public static void main(String[] args) {

String driver = "com.mysql.jdbc.Driver";

// URL指向要访问的数据库名

String url = "jdbc:mysql://localhost:3306/test";

// MySQL配置时的用户名

String user = "root";

// Java连接MySQL配置时的密码

String password = "123456";

try {

// 加载驱动程序

Class.forName(driver);

// 连续数据库

Connection conn = DriverManager.getConnection(url, user, password);

if(!conn.isClosed())

System.out.println("Succeeded connecting to the Database!");

} catch(ClassNotFoundException e) {

System.out.println("Sorry,can`t find the Driver!");

e.printStackTrace();

} catch(SQLException e) {

e.printStackTrace();

} catch(Exception e) {

e.printStackTrace();

}

}

}

然后提示错误，

Sorry,can`t find the Driver!

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:190)

at mysql.main(mysql.java:25)

，怎么解啊//、

代码如下 import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import javax.swing.JOptionPane; public class mysql {public static void main(String[] args) { String driver = "com.mysql.jdbc.Driver"; // URL指向要访问的数据库名 String url = "jdbc:mysql://localhost:3306/test"; // MySQL配置时的用户名 String user = "root"; // Java连接MySQL配置时的密码 String password = "123456"; try { // 加载驱动程序 Class.forName(driver); // 连续数据库 Connection conn = DriverManager.getConnection(url, user, password); if(!conn.isClosed()) System.out.println("Succeeded connecting to the Database!"); } catch(ClassNotFoundException e) { System.out.println("Sorry,can`t find the Driver!"); e.printStackTrace(); } catch(SQLException e) { e.printStackTrace(); } catch(Exception e) { e.printStackTrace(); } } } 然后提示错误， Sorry,can`t find the Driver! java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:190) at mysql.main(mysql.java:25) ，怎么解啊//、