是否可以重试ASIHTTPRequest？ [英] Can an ASIHTTPRequest be retried?

问题描述

有没有办法重试ASIHTTPRequest？我在REST服务中使用自定义身份验证而不是基本HTTP身份验证，如果会话已过期，我想重试请求。在请求上第二次调用startAsynchronous会导致异常。我想做这样的事情：

Is there a way to retry an ASIHTTPRequest? I'm using custom authentication in a REST service instead of basic HTTP authentication and I would like to retry a request if the session has expired. Calling startAsynchronous a second time on a request causes an exception. I would like to do something like this:

[request setCompletionBlock:^{
        if ([request responseStatusCode] == 500)
        {
            // try to login again in case token expired
            [server loginAndRetryRequest:request];
        } else {
            // parse response
        }
    }];

loginAndRetryRequest：将执行另一个ASIHTTPRequest登录，一旦完成，它将再次从原始请求开始它是CompletionBlock（假设这可能以某种方式）？

loginAndRetryRequest: will do another ASIHTTPRequest to login and when it is complete it will start the original request again from it's CompletionBlock (assuming this is possible somehow)?

推荐答案

应该可以复制请求然后执行 -startAsynchronous 再次复制。

It should be possible to make a copy of the request and then execute -startAsynchronous again on the copy.

在版本1.5中添加了对NSCopying协议的支持，其中还包括自动重试超时的情况（选择器 -setNumberOfTimesToRetryOnTimeout：。

Support for NSCopying protocol was added in release 1.5, which also includes automatic retry in case of timeout (selector -setNumberOfTimesToRetryOnTimeout:.

另一个选项可能是检查他们的源代码，看看自动如何在超时的情况下进行重试，但复制和重新发出请求应该有效（这是首先添加对NSCopying的支持的原因）。

Another option could be checking their source code to see how the automatic retry is done in case of timeout, but copying and re-issuing the request should work (that was the reason to add support for NSCopying in the first place).

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