InputStream对象无法获取Urlconnection对象.getInputSteam的值

虽然没有错不报错，但是却抓不到数据，同时异常里可以捕抓到IO异常，但是没有提示

 @Override
        protected Bitmap doInBackground(String... params) {
            String url=params[0];
            Bitmap bitmap=null;         
            URLConnection connection;
            InputStream is;
            //通过URL.openConnection方法获得一个URLConnection对象         
            try {
                URL myurl = new URL(url);
                connection=myurl.openConnection();
                connection.connect();
                is=connection.getInputStream();

                //包装一下
                //BufferedInputStream bis=new BufferedInputStream(is);
                //将一个输入流解析为一个BitMap对象
                bitmap=BitmapFactory.decodeStream(is);
                //关闭输入流
                is.close();
                //bis.close();
            } catch (MalformedURLException e) {
                Log.i("info", "MalformedURLException");
                e.printStackTrace();
            } catch (IOException e) {
                Log.i("info", "IOException:"+e.toString());
                e.printStackTrace();
            }




            return bitmap;
        }

 private String URL = "http://image.sinajs.cn/newchart/monthly/n/sh601003.gif"; 

刚刚调试获得一个异常
IOException:java.net.UnknownHostException: Unable to resolve host "image.sinajs.cn": No address associated with hostname

url不对，你看下这个域名http://image.sinajs.cn问下你们那边的工作人员。