java 带有响应参数的方法中的 IllegalStateException
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IllegalStateException within method with Response paramether
提问by VanDavv
I wrote a simple class to test response reading entity method (if it works as I expect). But it didn't worked well.
我写了一个简单的类来测试响应读取实体方法（如果它按我的预期工作）。但效果并不好。
When I launch my class I get following error at response.readEntity():
当我启动我的课程时，我收到以下错误response.readEntity()：
Exception in thread "main" java.lang.IllegalStateException: Method not supported on an outbound message. at org.glassfish.jersey.message.internal.OutboundJaxrsResponse.readEntity(OutboundJaxrsResponse.java:150)
Exception in thread "main" java.lang.IllegalStateException: Method not supported on an outbound message. at org.glassfish.jersey.message.internal.OutboundJaxrsResponse.readEntity(OutboundJaxrsResponse.java:150)
And here's the code I wrote
这是我写的代码
public static void main(String[] args) {
List<Entity> representations = new ArrayList<>();
representations.add(new Entity("foo", "baz", false));
representations.add(new Entity("foo1", "baz1", true));
representations.add(new Entity("foo2", "baz2", false));
Response build = Response.ok(representations).build();
printEntitesFromResponse(build);
}
public static void printEntitesFromResponse(Response response) {
response
.readEntity(new GenericType<List<Entity>>() {})
.stream()
.forEach(entity -> System.out.println(entity));
}
What am I doing wrong?
我究竟做错了什么？
回答by Paul Samsotha
There are two types of Responsees, inbound and outbound, though they still use the same interface. Outbound is when you are sending a response from the server
Responsees有两种类型，入站和出站，尽管它们仍然使用相同的接口。出站是当您从服务器发送响应时
Response response = Response.ok(entity).build();
Inbound is when you are receiving the response on the client side.
入站是您在客户端收到响应的时间。
Response response = webTarget.request().get();
The readEntitymethod is disabled on the server side outbound response, because you don't need it. It is only used when you need to _de_serialize the response from the response stream. But there is none when it's outbound.
该readEntity方法在服务器端出站响应中被禁用，因为您不需要它。它仅在您需要 _de_serialize 响应流中的响应时使用。但是出站时没有。
If you want the entity on the outbound response, just use Response#getEntity()
如果您想要出站响应中的实体，只需使用 Response#getEntity()
