android从服务器获取图片

System.out.println("我进入图像解析函数啦~");
   System.out.println(path+"path");
URL url=new URL(path);
System.out.println(1);
HttpURLConnection conn=(HttpURLConnection) url.openConnection();
System.out.println(2);
InputStream in=conn.getInputStream();
System.out.println(3);
bitmap=BitmapFactory.decodeStream(in);
System.out.println(4);
return bitmap;