使用 alamofire 下载不完整的文件

Posted 2023-02-24

【中文标题】使用 alamofire 下载不完整的文件

【英文标题】：Incomplete files download with alamofire

【发布时间】：2015-10-13 23:57:57

【问题描述】：

我有一个包含 60 个远程文件（图像）的列表，我想下载所有这些文件，但是当我尝试在这里下载 15 个图像时，我的代码

    let destination = Alamofire.Request.suggestedDownloadDestination(directory: .DocumentDirectory, domain: .UserDomainMask)

    for var i = 1; i < 61; i++ 

        Alamofire.download(.GET, "https://domain.com/folder/\(i).jpg", destination: destination)
            .progress  bytesRead, totalBytesRead, totalBytesExpectedToRead in
                dispatch_async(dispatch_get_main_queue()) 
                    print("Total bytes read on main queue: \(totalBytesRead)")
                
            
            .response  _, _, _, error in
                if let error = error 
                    print("Failed with error: \(error)")
                 else 
                    print("Downloaded file successfully")
                
        

    

有什么想法？？？

【问题讨论】：

不知道alamofire是什么，但是看起来你下载太快了，我一次下载一个，我会把它放在答案中，这样代码会更好

【参考方案1】：

func doDownload(i:int)

    if(i > 60)
    
        return;
    
    let destination = Alamofire.Request.suggestedDownloadDestination(directory: .DocumentDirectory, domain: .UserDomainMask)

    Alamofire.download(.GET, "https://domain.com/folder/\(i).jpg", destination: destination)
        .progress  bytesRead, totalBytesRead, totalBytesExpectedToRead in
            dispatch_async(dispatch_get_main_queue()) 
                print("Total bytes read on main queue: \(totalBytesRead)")
            
        
        .response  _, _, _, error in
            if let error = error 
                print("Failed with error: \(error)")
             else 
                print("Downloaded file successfully")
                doDownload(i + 1); //If you only want to download on success do it here
            
            //Otherwise doDownload(i + 1)here;
    
 

【讨论】：

@KnightOfDragon 谢谢，我试试看结果告诉你