TimeoutDeferredResultProcessingInterceptor (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.web.context.request.async.TimeoutDeferredResultProcessingInterceptor

所有已实现的接口:
DeferredResultProcessingInterceptor
```
public class TimeoutDeferredResultProcessingInterceptor
extends Object
implements DeferredResultProcessingInterceptor
```
Sends a 503 (SERVICE_UNAVAILABLE) in case of a timeout if the response is not already committed. As of 4.2.8 this is done indirectly by returning AsyncRequestTimeoutException as the result of processing which is then handled by Spring MVC's default exception handling as a 503 error.
Registered at the end, after all other interceptors and therefore invoked only if no other interceptor handles the timeout.
Note that according to RFC 7231, a 503 without a 'Retry-After' header is interpreted as a 500 error and the client should not retry. Applications can install their own interceptor to handle a timeout and add a 'Retry-After' header if necessary.
从以下版本开始:
3.2
作者:
Rossen Stoyanchev

构造器概要
构造器
构造器说明
TimeoutDeferredResultProcessingInterceptor()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`<T> boolean`	`handleTimeout(NativeWebRequest request, DeferredResult<T> result)`	Invoked from a container thread when an async request times out before the `DeferredResult` has been set.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.springframework.web.context.request.async.DeferredResultProcessingInterceptor
afterCompletion, beforeConcurrentHandling, handleError, postProcess, preProcess

- 构造器详细资料
  - TimeoutDeferredResultProcessingInterceptor
```
public TimeoutDeferredResultProcessingInterceptor()
```
- 方法详细资料
  - handleTimeout
```
public <T> boolean handleTimeout(NativeWebRequest request,
                                 DeferredResult<T> result)
                          throws Exception
```
    从接口复制的说明: DeferredResultProcessingInterceptor
    Invoked from a container thread when an async request times out before the DeferredResult has been set. Implementations may invoke setResult or setErrorResult to resume processing.
    指定者:
    handleTimeout 在接口中 DeferredResultProcessingInterceptor
    参数:
    request - the current request
    result - the DeferredResult for the current request; if the DeferredResult is set, then concurrent processing is resumed and subsequent interceptors are not invoked
    返回:
    true if processing should continue, or false if other interceptors should not be invoked
    抛出:
    Exception - in case of errors