java为什么我的特例apper会被扔进泽西/灰熊？

2 月，4 周 Questions & Answers 945

目前我在灰熊2.3.16和泽西2.14中工作。我试图让服务器处理一个自定义异常，并将其返回给客户端。相反，我似乎得到了一般的Grizzly错误，尽管似乎调用了正确的代码

这是filter方法（具有“@Provider”装饰的类的一部分）

@Override
public void filter(ContainerRequestContext context) throws IOException 
{
    throw new MappableException(
        new CustomAuthenticationException(
            "Custom Error message"));
}

以下是整个ExceptionMapper实现：

@Provider
public class CustomAuthenticationExceptionMapper
    implements ExceptionMapper<CustomAuthenticationException>
{
    public Response toResponse(CustomAuthenticationException e)
    {
        return Response.status(Status.UNAUTHORIZED.getStatusCode()).
                header("WWW-Authenticate", "Basic realm=\"Custom\"").
                type("text/plain").entity(e.getMessage()).build();
    }
}

下面是我如何得到回复并阅读的：

response = invocationBuilder.method(requestMethod.toString(), Response.class);
System.out.println(response.readEntity(String.class));

当我得到实体时，它是来自Grizzly的HTML，而不是我的自定义消息

这是调用toResponse之前的堆栈跟踪——我可以验证代码是否被调用，但看起来Jersey或Grizzly只是在丢弃它，并最终被默认的Grizzly消息替换

at org.glassfish.jersey.server.ServerRuntime$Responder.mapException(ServerRuntime.java:528)
    at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:409)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
    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:297)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:254)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1030)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:377)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    at org.glassfish.grizzly.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:147)
    at org.glassfish.grizzly.servlet.FilterChainImpl.invokeFilterChain(FilterChainImpl.java:106)
    at org.glassfish.grizzly.servlet.ServletHandler.doServletService(ServletHandler.java:221)
    at org.glassfish.grizzly.servlet.ServletHandler.service(ServletHandler.java:169)
    at org.glassfish.grizzly.http.server.HttpHandler$1.run(HttpHandler.java:219)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Unknown Source)

我不确定还有哪些部分是相关的，但可以根据需要提供

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java为什么我的特例apper会被扔进泽西/灰熊？

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