未找到类[org.apache.derby.jdbc.ClientDriver]异常 [英] Class [org.apache.derby.jdbc.ClientDriver] not found Exception

问题描述

！[缺少JAVADB_DRIVER_LABEL库] [1]

![JAVADB_DRIVER_LABEL library missing][1]

我试图通过Windows 7上的netbeans 8 IDE连接到JavaDB。我可以使用DB连接它经理在服务面板中提供了netbeans。但是当我尝试通过我的代码连接它时，我得到了org.apache.derby.jdbc.ClientDriver类的ClassNotFoundException。

I am trying to connect to a JavaDB through netbeans 8 IDE on Windows 7. i can connect it using the DB manager provided with netbeans in Services panel. But when trying to connect it through my code I get ClassNotFoundException for the org.apache.derby.jdbc.ClientDriver class.

我无法在我的上运行Apache tomcat服务器机器，所以我使用netbeans附带的Glassfish服务器4.

I could not run the Apache tomcat server on my machine, so I am Using the Glassfish server 4 that comes with netbeans.

我连接数据库的代码如下：

my code to connect to the DB is as follows:

String url = "jdbc:derby://localhost:1527/sample;UID=app;PWD=app";
Class.forName("org.apache.derby.jdbc.ClientDriver");
conn = DriverManager.getConnection(url);

这个类似的代码适用于SQL服务器，MS Access。

This similar code worked with SQL server, MS Access.

推荐答案

您需要将 derbyclient.jar 添加到类路径中。您可以在此处的derby下载包中找到此jar。这个jar包含你的 org.apache.derby.jdbc.ClientDriver 。

You need to add derbyclient.jar to your classpath. You can find this jar in the download package of derby from here. This jar contains your org.apache.derby.jdbc.ClientDriver.

有关更多信息，请参阅以下答案： org.apache.derby.jdbc.ClientDriver在哪里？

For more information, see this answer : where is org.apache.derby.jdbc.ClientDriver?

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