HttpURLConnection 获取图片

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private class MyRunnable implements Runnable {    private final String imageUrl;    private final int position;    public MyRunnable(String imageUrl, int position) {        this.imageUrl = imageUrl;        this.position = position;    }    @Override    public void run() {        try {            URL url = new URL(imageUrl);            HttpURLConnection connection = (HttpURLConnection) url.openConnection();            connection.setConnectTimeout(4000);            connection.setReadTimeout(4000);            connection.connect();            if (connection.getResponseCode() == 200) {                InputStream is = connection.getInputStream();                Bitmap bitmap = BitmapFactory.decodeStream(is);                Message msg = Message.obtain();                msg.what = SUCCESS;                msg.arg1 = position;                msg.obj = bitmap;                handler.sendMessage(msg);                Log.e("success", "成功");                localCacheUtils.putBitmapFromUrl(imageUrl,bitmap);            }        } catch (Exception e) {            Log.e("fail", "失败" + e.toString());        }    }}

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