文件上传下载传输状态为FAILED时如何知道错误/异常
How to know the error / exception when file upload download transfer state is FAILED
我正在使用 AWS SDK 中提供的传输管理器进行文件上传，download.Upload 和下载方法 returns 分别上传、下载对象。我正在使用 isDone() 方法检查 upload/download 是否为 finished.Now isDone() 方法 returns true，即使 TransferState 失败也是如此。我需要知道导致此失败的错误或异常。我该怎么做。
根据定义和documentation;
isDone Returns true if this transfer is finished (i.e. completed successfully, failed, or was canceled). Returns false if otherwise.
你可能会用到什么；
waitForCompletion: Waits for this transfer to complete. This is a blocking call; the current thread is suspended until this transfer completes. details here
也许是这个
waitForException: Waits for this transfer to finish and returns any error that occurred, or returns null if no errors occurred. This is a blocking call; the current thread will be suspended until this transfer either fails or completes successfully. details here
两者都是 blocking 调用，但抛出包含详细信息的异常。
我正在使用 AWS SDK 中提供的传输管理器进行文件上传，download.Upload 和下载方法 returns 分别上传、下载对象。我正在使用 isDone() 方法检查 upload/download 是否为 finished.Now isDone() 方法 returns true，即使 TransferState 失败也是如此。我需要知道导致此失败的错误或异常。我该怎么做。
根据定义和documentation;
isDoneReturns true if this transfer is finished (i.e.completed successfully,failed, or wascanceled). Returns false if otherwise.
你可能会用到什么；
waitForCompletion: Waits for this transfer to complete. This is a blocking call; the current thread is suspended until this transfer completes. details here
也许是这个
waitForException: Waits for this transfer to finish and returns any error that occurred, or returns null if no errors occurred. This is a blocking call; the current thread will be suspended until this transfer either fails or completes successfully. details here
两者都是 blocking 调用，但抛出包含详细信息的异常。