Apache Tomcat错误:请求的资源不可用

问题描述：

我正在按照本教程构建我的第一个Struts2示例.

I am following this tutorial to build my first Struts2 example.

我的项目名称(也包括war文件)为HelloWorld，并且每当我尝试访问时 http://localhost:8080/HelloWorld/index.jsp我知道

My project name (and war file also) is HelloWorld and whenever I try to access http://localhost:8080/HelloWorld/index.jsp I get

请求的资源不可用.

The requested resource is not available.

我的war文件在tomcat webapps目录中，并且tomcat运行良好.

I have my war file in tomcat webapps directory and tomcat is running fine.

我要去哪里错了?

答

该教程是旧的.

它仍然使用org.apache.struts2.dispatcher.FilterDispatcher，这是自Struts 2.1.8起已弃用的过滤器.

It still uses org.apache.struts2.dispatcher.FilterDispatcher , that is a deprecated filter since Struts 2.1.8.

您需要使用新的过滤器:org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.

You need to use the new filter: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.

然后确保在 web.xml 中正确设置了过滤器和过滤器映射:

Then ensure you have both the filter and the filter-mapping correctly set in your web.xml:

<filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>

<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

Apache Tomcat错误:请求的资源不可用

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