Question

我可以通过宁静的电话与我的后端通过我的AngularJS应用程序进行通信。 JAX-RS呼叫工作，例如从后端登录或获取数据。这是因为我在应用程序中有一个CORSResponseFilter：

@Provider    
public class CORSResponseFilter implements ContainerResponseFilter { 
    @Override
    public void filter( ContainerRequestContext requestCtx, ContainerResponseContext responseCtx ) throws IOException {
        responseCtx.getHeaders().add( "Access-Control-Allow-Origin", "*" );
        responseCtx.getHeaders().add( "Access-Control-Allow-Credentials", "true" );
        responseCtx.getHeaders().add( "Access-Control-Allow-Methods", "GET, POST, DELETE, PUT" );
        responseCtx.getHeaders().add( "Access-Control-Allow-Headers", "Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With");
    }
}

我遇到的问题是JAX-RS调用出现问题时。如果存在内部服务器错误或抛出BadRequest异常，则前端响应：

请求的资源上没有“Access-Control-Allow-Origin”标头。因此不允许来源“http://localhost:9000” 访问。响应的HTTP状态代码为500。

在GlassFish日志中，我得到：

警告：StandardWrapperValve [ServletAdaptor]：servlet ServletAdaptor的Servlet.service（）抛出异常 org.project.dashboard.exceptions.BadRequestException：（400）：无效的日期格式应为yyyy-MM-dd

正如您在GlassFish日志中看到的那样，异常被映射到正确的错误和响应代码，但不会渗透到前端。我只得到“No'Access-Control-Allow-Origin'标题”错误。当响应代码为200时，我没有收到此错误。

更新

如果没有抛出异常，则会使用ResponseFilter，但有时会触及ResponseFilter。

以下是我的异常映射器的代码，可能导致问题：

@Provider
public class DashboardExceptionMapper implements ExceptionMapper<DashboardException> {

@Override
public Response toResponse(DashboardException e) {
    ErrorMessage error = new ErrorMessage();
    error.setStatus(e.getHttpStatusCode());
    error.setCode(e.getClass().getSimpleName());
    error.setMessage(e.getShortMessage());

    return Response.status(e.getHttpStatusCode()).entity(error)
            .build();
}
}

更新2

抛出异常的代码：

public class BadRequestException extends DashboardException{
private static final long serialVersionUID = 1L;

public BadRequestException(String message) {
    super(HttpURLConnection.HTTP_BAD_REQUEST, message);
}

}

更新3

请求其中一个例外的完整堆栈跟踪：

        Warning:   StandardWrapperValve[ServletAdaptor]: Servlet.service() for servlet ServletAdaptor threw exception
    org..dashboard.exceptions.AuthenticationException: (403) : An invalid sessionID has been provided
        at org..dashboard.exposed.DashboardREST.getRoutes(DashboardREST.java:330)
        at sun.reflect.GeneratedMethodAccessor191.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
        at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
        at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4695)
        at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:630)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
        at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
        at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:46)
        at sun.reflect.GeneratedMethodAccessor170.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
        at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
        at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
        at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
        at sun.reflect.GeneratedMethodAccessor172.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
        at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
        at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
        at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
        at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
        at com.sun.proxy.$Proxy414.getRoutes(Unknown Source)
        at org.dashboard.exposed.__EJB31_Generated__DashboardREST__Intf____Bean__.getRoutes(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor191.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:125)
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:195)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:91)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:346)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:341)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:101)
        at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:224)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198)
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946)
        at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:323)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:372)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:335)
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:218)
        at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
        at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
        at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
        at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
        at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
        at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
        at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
        at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
        at java.lang.Thread.run(Thread.java:745)

Answer 1

您的过滤器无效，因为您的自定义ExceptionMapper无效。使用@Provider注释对其进行注释是不够的，您还应该包含它驻留在提供程序包配置中的包，或者手动注册此自定义异常映射器。

例如：

<servlet>
    <servlet-name>jersey-serlvet</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
         <param-name>jersey.config.server.provider.packages</param-name>
         <param-value>org.dashboard.exposed,org.dashboard.exceptions</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

请注意，<init-param>名称的确切值取决于您使用的版本。

Answer 2

一般情况下ContainerResponseFilter将始终执行，请参阅Server filters：

在执行资源方法之后的大多数情况下，将针对每个响应执行过滤器。即使没有运行资源方法，也会执行响应过滤器，例如，当找不到资源方法时，404＆＃34; Not found＆＃34;响应代码由Jersey运行时返回。在这种情况下，将执行过滤器并处理404响应。

另请参阅：Filter and interceptor execution order和JAX_RS_SPEC-230。

但提供商必须为public，请参阅JERSEY-2094，JERSEY-2096和JERSEY-2097。

在某些情况下，@PreMatching会停用ContainerResponseFilter，请参阅ContainerResponseFilter not working。

此外，您必须知道，如果响应已经committed，则无法添加标头。

在JAX-RS请求的异常期间，“没有'Access-Control-Allow-Origin'标头”错误

2 个答案: