java 加载MYSQL驱动 找不到类

Question

public class ConnectionDemo1
{
public static final String DBDriver="org.gjt.mm.mysql.Driver";
public static void main(String[] args)
{
try
{
Class div=Class.forName(DBDriver);
System.out.println("驱动加载成功!");
}
catch(ClassNotFoundException e)
{
System.out.println("驱动加载失败!");
e.printStackTrace();
}
}
}

驱动加载失败!
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at ConnectionDemo1.main(ConnectionDemo1.java:8)
环境变量 配置过了,

Answer 1

参考下：
public class DBConnection {
private static final String DBDRIVER = "com.mysql.jdbc.Driver"; // 驱动类类名
private static final String DBURL = "jdbc:mysql://127.0.0.1:3306/test";// 连接URL
private static final String DBUSER = "root"; // 数据库用户名
private static final String DBPASSWORD = "123"; // 数据库密码
public static Connection getConnection() {
Connection conn = null;
try {
Class.forName(DBDRIVER).newInstance(); // 注册驱动
conn = DriverManager.getConnection(DBURL, DBUSER, DBPASSWORD); // 获得连接对象
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}
｝