基于IOS的FTP详解(四)上传

最新推荐文章于 2021-08-06 23:51:05 发布

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最新推荐文章于 2021-08-06 23:51:05 发布 · 3.5k 阅读

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#CFNetwork #FTP #IOS #网络编程

iOS中FTP上传文件与下载类似，涉及读写流。本地文件通过读流打开，远程文件使用写流。在回调函数中，从读流读取数据到缓冲区，再用`write`函数将缓冲区内容推送到写流。当写流能接受字节时，重复此过程直到上传完成。文中提供了一个FTP上传的示例代码和参考资料。

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上传和下载非常相似

Uploading a File

Uploading a file is similar to downloading a file. As with downloading a file, you need a read stream and a write stream. However, when uploading a file, the read stream will be for the local file and the write stream will be for the remote file. Follow the instructions in “Setting up the Streams,” but wherever it refers to the read stream, adapt the code for a write stream and visa versa.

In the callback function, rather than looking for the kCFStreamEventHasBytesAvailable event, now look for the event kCFStreamEventCanAcceptBytes. First, read bytes