ClassNotFoundException：com.microsoft.sqlserver.jdbc [英] ClassNotFoundException: com.microsoft.sqlserver.jdbc

问题描述

当我在Eclipse IDE下运行我​​的Web应用程序时，一切正常。
但是当我将项目导出到war-file并在tomcat中部署时，我得到以下消息：

When I ran my web application under Eclipse IDE everything worked fine. But when I exported my project into war-file and deployed in tomcat I've got following message:

java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc

我试过把sqljdbc4.jar放到各处：

I've tried putting sqljdbc4.jar everywhere:

• catalina-home \lib dir


• WEB-INF \lib dir


• 他们两人

我缺少什么？
环境：tomcat 6.0.20，sql server 2005

What I'am missing? Environment: tomcat 6.0.20, sql server 2005

推荐答案

您的驱动程序类名称是错的。异常文本指向包，而不是实际的驱动程序类。并且不要忘记在更改各种lib目录的内容后重新启动Tomcat。

Your driver class name is wrong. The exception text points to a package, not an actual driver class. And don't forget to restart Tomcat after changing the contents of various lib directories.

编辑：您的IDE可能使用与部署不同的配置战争。或者以静默方式失败但是驱动程序本身已经通过其他方式加载 - 然后实际连接才起作用。

Your IDE might use different configuration than your deployed war. Or fail with the same exception silently but the driver itself was already loaded by other means - then the actual connection just works.

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