public static void saveContentToFile(URL url, File file) throws IOException {
        InputStream is = url.openStream();
        FileOutputStream fos = new FileOutputStream(file);
        byte[] b = new byte[1024];
        int len;
        while ((len = is.read(b)) != -1) {
            fos.write(b, 0, len);
        }
        fos.flush();
        fos.close();
        is.close();
    }
public static void saveContentToFile(URL url, File file) throws IOException {
        InputStream is = url.openStream();
        FileOutputStream fos = new FileOutputStream(file);
        byte[] b = new byte[1024];
        int len;
        while ((len = is.read(b)) != -1) {
            fos.write(b, 0, len);
        }
        fos.flush();
        fos.close();
        is.close();
    }
public static void saveContentToFile ( URL url , File file ) throws IOException { InputStream is = url . openStream ( ) ; FileOutputStream fos = new FileOutputStream ( file ) ; byte [ ] b = new byte [ 1024 ] ; int len ; while ( ( len = is . read ( b ) ) != - 1 ) { fos . write ( b , 0 , len ) ; } fos . flush ( ) ; fos . close ( ) ; is . close ( ) ; }
保存网络文件到指定文件

@param url  文件地址
@param file 文件
@throws IOException io exception
保存网络文件到指定文件