为什么我的 servlet 在 TomCat 6.0.18 上无法加载，但在 5.5 上加载正常
我有一个使用 TomCat 5.5 的开发环境，并且我的应用程序运行良好。一旦将所有内容传输到运行 TomCat 6.0.18 的部署服务器，名为 DeviceComm 的 servlet 类似乎就不会加载。我在“资源不可用”中遇到的错误。
我最近对这个类进行了修改。转移只是更新，之前一切正常。基本上，问题是：什么可以使 servlet 在 tomcat 版本 6 上无法工作而在 5.5 上正常工作？
谢谢！
I have a development environment where i use TomCat 5.5 and my application works fine. As soon as a transfer everything to a deployment server, that's running TomCat 6.0.18, a servlet class called DeviceComm doesn't seem to load. The error that i'm getting in "Ressource not available".
I have brought modifications to this class recently. The transfer was only an update, everything was working fine before. Basically, the question is: what can make a servlet not work on version 6 of tomcat and work fine on 5.5 ?
Thanks!
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问题解决了！部署 .class 文件与开发环境中的文件不同。 SourceSafe 中的错误！
Problem solved! The deployment .class files were not the same as the ones on the development environment. Bug in SourceSafe!
如果 Tomcat 5.5 在 Java 5 上运行而 Tomcat 6 在 Java 6 上运行，也可能是 JDK 版本不匹配
Could also be a JDK version mismatch if your Tomcat 5.5 runs on Java 5 and the Tomcat 6 runs on Java 6
确保您没有将
server.xml文件从 5.5 复制到 6.0。 6.0 中有很多细微的差异，导致 5.5server.xml无法加载。确保将配置更改应用到 tomcat 发行版附带的 6.0 模板。
Make sure you just did not copy your
server.xmlfile from 5.5 to 6.0. There are quite a few subtle differences in 6.0 that makes 5.5server.xmlto not load.Make sure that you apply your configuration changes to 6.0 template that comes with tomcat distribution.
这可能是由一切原因造成的。阅读服务器启动日志。它位于
/logs文件夹中，文件名为domainname.yyyy-MM-dd.log。它将包含服务器启动和 servlet 初始化期间发生的任何异常/问题。That can be caused by everything. Read the server startup logs. It's located in the
/logsfolder with the filenamedomainname.yyyy-MM-dd.log. It'll contain any exceptions/problems which are occurred during server startup and servlet initialization.