javascript Tomcat 5.5 跨域资源共享
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Cross-origin resource sharing for Tomcat 5.5
提问by Pablo
I am new to Cross-origin resource sharing and I want to enable it in a Tomcat 5.5 server. Anybody can give me some hint how can this be achieved?
我是跨域资源共享的新手，我想在 Tomcat 5.5 服务器中启用它。任何人都可以给我一些提示，这是如何实现的？
I want to set the header universally for all requests, and to allow all origins (Access-Control-Allow-Origin: *)
我想为所有请求普遍设置标头，并允许所有来源 ( Access-Control-Allow-Origin: *)
回答by Johannes Jander
If it's a static site, then starting with Tomcat 7.0.41, you can easily control CORS behavior via a built-in filter.
如果是静态站点，那么从 Tomcat 7.0.41 开始，您可以通过内置过滤器轻松控制 CORS 行为。
Pretty much the only thing you have to do is edit the global web.xmlin CATALINA_HOME/confand add the filter definition:
您几乎唯一要做的就是编辑全局web.xml输入CATALINA_HOME/conf并添加过滤器定义：
<!-- ================== Built In Filter Definitions ===================== -->
...
<filter>
<filter-name>CorsFilter</filter-name>
<filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>CorsFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- ==================== Built In Filter Mappings ====================== -->
Be aware, though, that Firefox does not like Access-Control-Allow-Origin: *and requests with credentials (cookies): when responding to a credentialed request, server must specify a domain, and cannot use wild carding.
但是请注意，Firefox 不喜欢Access-Control-Allow-Origin: *使用凭据 (cookie) 请求：响应凭据请求时，服务器必须指定域，并且不能使用通配符。
回答by monsur
Here is a Tomcat filter for adding CORS support: https://bitbucket.org/jsumners/corsfilter
这是用于添加 CORS 支持的 Tomcat 过滤器：https: //bitbucket.org/jsumners/corsfilter
