I did not find any information for multi-threaded download of FtpWebRequest on the Internet. I wrote one myself. The test results are as follows:
// 1 thread downloads 133 M 18 seconds
// 5 threads download 133 M 40 seconds
// Download 133 MB for 12 seconds in a single thread
Hope you can give me some advice. The following is the complete code
First, namespace
Using System. Collections. Generic;
Using System. IO;
Using System. Threading;
Using System. Net;
Class subject:
Code Public class MultiFtpService
{
# Region variable
Private string _ Server; // Server address
Private string _ UserName; // User Name
Private string _ Password; // Password
Private int _ Port; // Port
Private long _ FileSize; // File Size
Private string _ FileUrl; // file address
Private string _ SavePath; // Save the path
Private string _ SaveFileName; // save the file name
Private string _ SaveExtName; // save the file extension
Private int _ ThreadNum; // Number of threads
Private short _ ThreadCompleteNum; // number of completed threads
Private bool _ IsComplete = false; // whether the process is complete
Private volatile int _ DownloadSize; // current download size
Private Thread [] _ Thread; // Thread Array
Private Li
