How to test wireless connection speed using java?

Question

在我的编译器中，我将如何测试计算机的无线连接速度？

Answer 1

You can try downloading a file from the internet and simply use a start/end timer

Long start = System.nanoTime();

// download to file code goes here
URL website = new URL("http://central.maven.org/maven2/com/sun/jersey/jersey-client/1.0.2/jersey-client-1.0.2.jar");
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream("information.html");
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

// do some validation check here that the file is successfully downloaded
Long end = System.nanoTime();
// and then measure time. you get file size (bytes) which you can use to measure speed

Also worth reading about Neflix fast.com implementation here