基于RestEasy中SynchronousDispatcher的源码。
protected void writeResponse(HttpRequest request, HttpResponse response, Response jaxrsResponse) {
try {
ServerResponseWriter.writeNomapResponse((BuiltResponse)jaxrsResponse, request, response, this.providerFactory);
} catch (Exception var5) {
this.writeException(request, response, var5);
}
}
public void writeException(HttpRequest request, HttpResponse response, Throwable e) {
if (response.isCommitted()) {
throw new UnhandledException("Response is committed, can't handle exception", e);
} else {
Response handledResponse = (new ExceptionHandler(this.providerFactory, this.unwrappedExceptions)).handleException(request, e);
if (handledResponse == null) {
throw new UnhandledException(e);
} else {
try {
ServerResponseWriter.writeNomapResponse((BuiltResponse)handledResponse, request, response, this.providerFactory);
} catch (Exception var6) {
throw new UnhandledException(var6);
}
}
}
}
ContainerResponseFilter 不会执行。
如果你想在异常发生时设置 headers,你需要一个异常处理程序来处理它。