QNetworkAccessManager 超时 [英] QNetworkAccessManager timeout

问题描述

目前我正在开发一个从远程服务器发送和接收文件的应用程序.为了进行网络操作，我使用 QNetworkAccessManager.

Presently I am working on an application which sends and receives file from remote server. To do network operation I am using QNetworkAccessManager.

上传文件我使用 QNetworkAccessManager::put() 下载我使用 QNetworkAccessManager::get() 函数.

To upload a file I am using QNetworkAccessManager::put() and to download I am using QNetworkAccessManager::get() functions.

上传文件时，我将初始化一个计时器，超时时间超过 15 秒.如果我上传一个小文件，它将在超时时间内完成.但是，如果我尝试上传非常大的文件，则会超时.那么如何决定上传大文件的超时时间.

While uploading a file I will initialize a timer with time out of 15 sec. if I upload a small file it will complete it within the time out period. But if I try to upload a file which is very large in size get time out. So how to decide time out for uploading of large file.

下载大文件时也是如此.我在 readyread() 信号中逐块获取文件.在这里，如果我下载一个大文件，我也会超时.那么如何决定上传大文件的超时时间.

Same in case of downloading of a large file. I get file in chunk by chunk in readyread() signal. Here also if I download a large file I get time out. So how to decide time out for uploading of large file.

推荐答案

使用 QNetworkReply::uploadProgress()(或downloadProgress) 信号，提醒您操作正在进行中.然后，在最后一个 uploadProgress/downloadProgress 通知后设置一个 15 秒的计时器(在下载/上传开始时启动计时器.)如果下载停止，您可以上次更新后 15 秒取消操作.

Use the QNetworkReply::uploadProgress() (or downloadProgress) signal to alert you that the operation is progressing. Then, set a timer for 15 seconds after the last uploadProgress/downloadProgress notification (with the timer started when the download/upload commenced.) If the download ever stops, you can cancel the operation 15 seconds after the last update.

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