根据地址下载文件
public static final String HTTp_URL="http:下载链接"; public static void main(String[] args) { Dol(); } public static void Dol(){ BufferedInputStream bis=null; BufferedOutputStream bos=null; try { URL url = new URL(HTTp_URL); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.connect(); InputStream is = connection.getInputStream(); bis = new BufferedInputStream(is); File file = new File("D:/test/"+HTTp_URL.substring((HTTp_URL.lastIndexOf("/"))));//名字截取 可以省略 FileOutputStream fos = new FileOutputStream(file); bos = new BufferedOutputStream(fos); int b = 0; byte[] byArr = new byte[1024*4]; while((b=bis.read(byArr))!=-1){ bos.write(byArr, 0, b); } } catch (Exception e) { e.printStackTrace(); }finally{ try { if(bis!=null){ bis.close(); } if(bos!=null){ bos.close(); } } catch (IOException e) { e.printStackTrace(); } } } }