POST请求未考虑NSMutableURLRequest超时间隔 [英] NSMutableURLRequest timeout interval not taken into consideration for POST requests

问题描述

我有以下问题。在 NSMutableURLRequest 上使用 HTTP 方法 POST 超时间隔为连接设置被忽略。如果互联网连接有问题（错误的代理，坏dns），网址请求在大约2-4分钟后失败，但没有 NSLocalizedDescription =超时;

I have the following problem. On a NSMutableURLRequest using the HTTP method POST the timeout interval set for the connection is ignored. If the internet connection has a problem (wrong proxy, bad dns) the url request fails after about 2-4 minutes but not with NSLocalizedDescription = "timed out";

NSUnderlyingError = Error Domain=kCFErrorDomainCFNetwork Code=-1001 UserInfo=0x139580 "The request timed out.

如果使用的 http 方法是 GET 它工作正常。
连接 async 超过 https 。

If the http method used is GET it works fine. The connection is async over https.

    NSURL *url = [NSURL URLWithString:urlString];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];    

    [request setTimeoutInterval:10];

    //Set the request method to post
    [request setHTTPMethod:@"POST"];

    if (body != nil) {
        [request setHTTPBody:body];
    }

    // Add general parameters to the request
    if (authorization){
        [request addValue: authorization forHTTPHeaderField:@"Authorization"];
    }
    [request addValue: WS_HOST forHTTPHeaderField:@"Host"];
    [request addValue:@"text/xml" forHTTPHeaderField:@"Content-Type"];

    [[NSURLCache sharedURLCache] setDiskCapacity:0];

    [self addToQueueRequest:request withDelegate:delegate];

'

推荐答案

根据在Apple开发者论坛上发布的帖子，POST的最短超时间隔为240秒。忽略任何短于此的超时间隔。

According to a post on the Apple developer forum, the minimum timeout interval for POST is 240 seconds. Any timeout interval shorter than that is ignored.

如果您需要更短的超时间隔，请使用异步请求和计时器，并根据需要在NSURLConnection上调用取消。

If you require a shorter timeout interval, use an async request along with a timer and call cancel on the NSURLConnection as needed.

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