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有没有可能将文件（例如：图片）上传到网站并计算传输速率？使用Java在网站上上传图片
我有一些代码，从下载指定网址的图像和计算的传输速率，使用java.net.Url类，类似：
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();
我需要的东西很容易和有益的。谢谢。