JDBC驱动程序不适用于GWT？ [英] JDBC Driver does not work with GWT?

问题描述

我想使用GWT从我的服务器访问外部MySQL服务器，我将mysql连接器jar添加到构建路径并在war / WEB-INF / lib中添加

尽管我得到这个异常：

java.lang.NoClassDefFoundError：
com.mysql.jdbc.Driver是一个限制
类。请参阅Google App
引擎开发人员指南了解更多
的详细信息。

有什么想法？请问jdbc驱动程序是否在黑名单中？

解决方案

App Engine不支持JDBC。也许您的项目设置为针对App Engine。如果您使用Eclipse，请右键单击该项目，选择属性，然后在Google> App Engine下取消选择使用Google App Engine。

I want to access to an external MySQL server from my server using GWT, I added the mysql-connector jar to the build path and in war/WEB-INF/lib

Although I get this exception:

java.lang.NoClassDefFoundError: com.mysql.jdbc.Driver is a restricted class. Please see the Google App Engine developer's guide for more details.

Any ideas? Would jdbc driver be on a black-list?

解决方案

App Engine doesn't support JDBC. Maybe your project is set to target App Engine. If you're using Eclipse, right click the project, choose properties, and under "Google>App Engine" deselect "Use Google App Engine".

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