Java 问题 Resteasy 3.09 CorsFilter
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Problems Resteasy 3.09 CorsFilter
提问by puzste
I tried to use the new CorsFilterwhich is available in Resteasy 3.0.9. I found an example at the bottom of this page:
Ajax request with JAX-RS/RESTEasy implementing CORS
我尝试使用CorsFilterResteasy 3.0.9 中提供的新功能。我在本页底部找到了一个示例：
Ajax request with JAX-RS/RESTEasy implementation CORS
If I define this filter in the method getSingletons()(of the Applicationsubclass) , then my Resources don't get scanned anymore. That means that no Resources will be found and the following error occurs:
如果我在getSingletons()（Application子类的）方法中定义此过滤器，则不会再扫描我的资源。这意味着将找不到资源并出现以下错误：
javax.ws.rs.NotFoundException: Could not find resource for full path Error Occures
javax.ws.rs.NotFoundException: Could not find resource for full path Error Occures
On the following page i found a description: javax.ws.rs.NotFoundException: Could not find resource for full path Error Occures
在以下页面上，我找到了一个描述： javax.ws.rs.NotFoundException：找不到完整路径的资源错误发生
But basically, what this deployment option does is scan for annotations of @Path, @Provider, etc for the application. The reason is that JAX-RS will first look for classes and object in overridden getClasses() and getSingletons(), respectively. If then return empty sets, this tell JAX-RS to do scanning (per the spec).
但基本上，此部署选项的作用是扫描应用程序的@Path、@Provider 等注释。原因是 JAX-RS 将首先分别在重写的 getClasses() 和 getSingletons() 中查找类和对象。如果然后返回空集，这会告诉 JAX-RS 进行扫描（根据规范）。
So JAX-RS doesn't do a scanning if i overwrite the getSingletons()method? Is there another way to configure this CorsFilterand enable the resource scanning`?
因此，如果我覆盖该getSingletons()方法，JAX-RS 不会进行扫描？还有另一种方法来配置它CorsFilter并启用资源扫描吗？
采纳答案by Paul Samsotha
"Is there another way to configure this CorsFilter and enable the resource scanning?"
“还有其他方法可以配置这个 CorsFilter 并启用资源扫描吗？”
One way to keep the scanning is just to implement a javax.ws.rs.core.Feature
保持扫描的一种方法是实现一个 javax.ws.rs.core.Feature
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;
import javax.ws.rs.ext.Provider;
import org.jboss.resteasy.plugins.interceptors.CorsFilter;
@Provider
public class CorsFeature implements Feature {
@Override
public boolean configure(FeatureContext context) {
CorsFilter corsFilter = new CorsFilter();
corsFilter.getAllowedOrigins().add("*");
context.register(corsFilter);
return true;
}
}
This feature will get scanned for just like all other @Providers and @Paths.
此功能将像所有其他@Providers 和@Paths一样被扫描。
Test with only
只用测试
@ApplicationPath("/api")
public class RestApplication extends Application {
}
C:\>curl -i http://localhost:8080/api/simple -H "Origin:stackoverflow.com" HTTP/1.1 200 OK Date: Wed, 01 Apr 2015 12:07:22 GMT Access-Control-Allow-Credentials: true Access-Control-Allow-Origin: stackoverflow.com Content-Type: application/octet-stream Content-Length: 15 Server: Jetty(9.2.4.v20141103)
Hello Response!
C:\>curl -i http://localhost:8080/api/simple -H "Origin:stackoverflow.com" HTTP/1.1 200 OK Date: Wed, 01 Apr 2015 12:07:22 GMT Access-Control-Allow-Credentials: true Access-Control-Allow-Origin: stackoverflow.com Content-Type: application/octet-stream Content-Length: 15 Server: Jetty(9.2.4.v20141103)
Hello Response!
