java 下载代码
java从网络下载的简单例子
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
public class DownUtil {
public static void download(String urlString, String filename, String savePath) throws Exception {
URL url = new URL(urlString);
URLConnection con = url.openConnection();
con.setConnectTimeout(60 * 1000);
InputStream is = con.getInputStream();
byte[] bs = new byte[1024];
int len;
File sf = new File(savePath);
if (!sf.exists()) {
sf.mkdirs();
}
OutputStream os = new FileOutputStream(sf.getPath() + File.separator + filename);
while ((len = is.read(bs)) != -1) {
os.write(bs, 0, len);
}
os.close();
is.close();
}
public static void main(String[] args) {
try {
download("https://www.seaxiang.com/", "test.txt", "D:\\");
} catch (Exception e) {
e.printStackTrace();
}
}
}
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