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有沒有可能將文件（例如：圖片）上傳到網站並計算傳輸速率？使用Java在網站上上傳圖片
我有一些代碼，從下載指定網址的圖像和計算的傳輸速率，使用java.net.Url類，類似：
long startTime = System.currentTimeMillis(); //start time
System.out.println("Connecting site...\n");
System.out.println("Downloading......");
URL url = new URL("http://....");
url.openConnection();
InputStream reader = url.openStream();
FileOutputStream writer = new FileOutputStream("D:/imagine.jpg");
byte[] buffer = new byte[153600];
int totalBytesRead = 0;
int bytesRead = 0;
while ((bytesRead = reader.read(buffer)) > 0)
{
writer.write(buffer, 0, bytesRead);
buffer = new byte[153600];
totalBytesRead += bytesRead;
}
long endTime = System.currentTimeMillis();//end of download
long elapsedTime=(endTime-startTime)/1000;//from miliseconds in seconds
System.out.println("ElapsedTime is " +elapsedTime +" s");
int memory=new Integer(totalBytesRead);
double memoryFinal=memory * 0.0009765625; //file in Kb
System.out.println("File size: " +memoryFinal +"Kb");
System.out.println("Speed :" + memoryFinal/elapsedTime + "Kbps");
writer.close();
reader.close();
我需要的東西很容易和有益的。謝謝。