package cn.javase.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
public class Download {
public static void download(String downloadPath, File toFile) {
InputStream in = null;
OutputStream out = null;
try {
URL url = new URL(downloadPath);
URLConnection connection = url.openConnection();
System.out.println(connection.getContentLength());
in = connection.getInputStream();
out = new FileOutputStream(toFile);
byte[] bytes = new byte[8192];
while (in.read(bytes) != -1) {
out.write(bytes);
}
out.flush();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
} catch (IOException e) {
}
}
}
}
package cn.javase.util;
import java.io.File;
public class Test {
public static void main(String[] args) {
String downPath = "http://localhost/JavaSE/upload/課程.png" ;
Download.download(downPath, new File("D:/")) ;
}
}