java 下载代码

  • 2018-05-31
  • 浏览 (28)

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("http://www.seaxiang.com/", "test.txt", "D:\\");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

正文到此结束