java 严重：异常启动过滤器 CORS
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SEVERE: Exception starting filter CORS
提问by pointer
I have RESTful web service deployed on tomcat' the web service is working fine in the client/server on same domain scenario' but I am required to make the Web Service available from cross domain' for this purpose I have used CORS filter.
我在 tomcat 上部署了 RESTful Web 服务'该 Web 服务在同一域场景的客户端/服务器中工作正常'但我需要使 Web 服务从跨域可用'为此目的，我使用了 CORS 过滤器。
I have included filter's jars in both myProjects/lib and tomcat/lib' and also have included following in my web.xml file of web service project'
我在 myProjects/lib 和 tomcat/lib' 中都包含了过滤器的 jar，并且还在我的 web 服务项目的 web.xml 文件中包含了以下内容
<filter>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
</filter>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modified</param-value>
</init-param>
<filter-mapping>
<filter-name>CORS</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
But when I try to start the web service I get following error regarding CORS filter:
但是，当我尝试启动 Web 服务时，出现以下有关 CORS 过滤器的错误：
SEVERE: Exception starting filter CORS
java.lang.NoClassDefFoundError: com/thetransactioncompany/util/PropertyParseException
at com.thetransactioncompany.cors.CORSFilter.init(CORSFilter.java:100)
kindly guide me to figure out what is wrong with this situation'
请指导我弄清楚这种情况有什么问题'
回答by EvenStevens
You need to add java-properties-utils-1.7.1.jar file to the classpath too as the cors filter has a dependancy on it.
您还需要将 java-properties-utils-1.7.1.jar 文件添加到类路径中，因为 cors 过滤器依赖于它。
回答by FAZIL MAHAMMOOD ABDULLAH
In my case, adding these 2 jar files in the tomcat lib folder solved the issue:
就我而言，在 tomcat lib 文件夹中添加这 2 个 jar 文件解决了该问题：
- cors-filter-2.5.jar
- java-property-utils-1.10.jar
- cors-filter-2.5.jar
- java-property-utils-1.10.jar
回答by jmjm
I had same prob but in ma case, first, my server status was unbound, so I changed it through 'Build path' But still didn't work.. my friend checked and he found Eclipse's 'Build Automatically' function. then it worked well !
我有同样的问题，但在 ma 的情况下，首先，我的服务器状态未绑定，所以我通过“构建路径”对其进行了更改，但仍然无效..我的朋友检查并发现了 Eclipse 的“自动构建”功能。那么它运作良好！
回答by a1an
It might have been a version issue. I had the same problem and it turns out this filter requires at minimum Tomcat version 7.0.41 to work, according to: http://enable-cors.org/server_tomcat.html
可能是版本问题。我遇到了同样的问题，结果证明这个过滤器至少需要 Tomcat 7.0.41 版本才能工作，根据：http://enable-cors.org/server_tomcat.html
As reference, Debian 7.8 ships Tomcat 7.0.28, which does not support native CORS.
作为参考，Debian 7.8 附带不支持原生 CORS 的 Tomcat 7.0.28。
回答by user1419243
I had the same problem. In my case, the problem was that the maven dependencies had been deleted from the Deployment Assemblysection in project properties. Hope it helps someone.
我有同样的问题。就我而言，问题是 maven 依赖项已从Deployment Assemblyproject 中的部分删除properties。希望它可以帮助某人。
