没有找到适合jdbc： mysql的驱动程序

Question

试图连接到允许远程连接的免费mysql数据库主机，但我遇到了以下错误：

未找到适合jdbc的驱动程序：mysql://xx2-23-x1-2x1-172.compuxe-1.xmazonaws.com:3306
我使用下面的代码。

 try{
      Class.forName("com.mysql.jdbc.Driver");
    System.out.println("Driver loaded");
    }
    catch(ClassNotFoundException e){
        System.out.println(e.getMessage());
    }
    try{
       String host = "jdbc:mysql://xx2-23-x1-2x1-172.compuxe-1.xmazonaws.com:3306/xxxxx";
        conn = DriverManager.getConnection(host,"xxxxx","xxxxx");
        System.out.println("Connection Established");
    }

编辑

Stack Trace显示在下面：

java.sql.SQLException: No suitable driver found for jdbc:mysql://xx2-23-x1-2x1-172.compuxe-1.xmazonaws.com:3306
    at java.sql.DriverManager.getConnection(DriverManager.java:604)
    at java.sql.DriverManager.getConnection(DriverManager.java:221)
    at DatabaseConnectivityModule.(DatabaseConnectivityModule.java:21)
    at UserFrontEnd.(UserFrontEnd.java:34)
    at UserFrontEnd$8.run(UserFrontEnd.java:399)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:701)
    at java.awt.EventQueue.access$000(EventQueue.java:102)
    at java.awt.EventQueue$3.run(EventQueue.java:662)
    at java.awt.EventQueue$3.run(EventQueue.java:660)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:671)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

Answer 1

你应该让你的代码看起来如下：

try {
    Class.forName("com.mysql.jdbc.Driver");
    String host = "jdbc:mysql://xx2-23-x1-2x1-172.compuxe-1.xmazonaws.com:3306/xxxxx";
    conn = DriverManager.getConnection(host,"xxxxx","xxxxx");
} catch (Exception e) {
    e.printStackTrace();
}

还要验证MySQL JDBC库是否在类路径中。图书馆可以从这里下载。