根据URL抓取并生成缩略图的Java代码，url抓取缩略图java,public stati

根据URL抓取并生成缩略图的Java代码，url抓取缩略图java,public stati

public static Bitmap loadImageFromUrl(String url, int sc) {        URL m;        InputStream i = null;        BufferedInputStream bis = null;        ByteArrayOutputStream out = null;        byte isBuffer[] = new byte[1024];        if (url == null)            return null;        try {            m = new URL(url);            i = (InputStream) m.getContent();            bis = new BufferedInputStream(i, 1024 * 4);            out = new ByteArrayOutputStream();            int len = 0;            while ((len = bis.read(isBuffer)) != -1) {                out.write(isBuffer, 0, len);            }            out.close();            bis.close();        } catch (MalformedURLException e1) {            e1.printStackTrace();            return null;        } catch (IOException e) {            e.printStackTrace();        }        if (out == null)            return null;        byte[] data = out.toByteArray();        BitmapFactory.Options options = new BitmapFactory.Options();        options.inJustDecodeBounds = true;        BitmapFactory.decodeByteArray(data, 0, data.length, options);        options.inJustDecodeBounds = false;        int be = (int) (options.outHeight / (float) sc);        if (be <= 0) {            be = 1;        } else if (be > 3) {            be = 3;        }        options.inSampleSize = be;        Bitmap bmp = null;        try {            bmp = BitmapFactory.decodeByteArray(data, 0, data.length, options); // 返回缩略图        } catch (OutOfMemoryError e) {            // TODO: handle exception            System.gc();            bmp = null;        }        return bmp;    }