Read images from remote paths for Base64 transcoding

public static byte[] Getimagefromnetbyurl (String strurl) {try {URL url = new URL (strurl);              HttpURLConnection conn = (httpurlconnection) url.openconnection ();              Conn.setrequestmethod ("GET");              Conn.setconnecttimeout (5 * 1000); InputStream instream = Conn.getinputstream ();//Get Picture data by the input stream byte[] btimg = Readinputstream (instream);//Get the image of the binary          System data return btimg;          } catch (Exception e) {e.printstacktrace ();      } return null; }
Since the reading takes a certain amount of time, it cannot be read in a byte array, so it is necessary to determine whether to read public static byte[] Readinputstream (InputStream instream) throws exception{
Store all byte arrays read Bytearrayoutputstream OutStream = new Bytearrayoutputstream ();          byte[] buffer = new byte[1024];          int len = 0;          while ((Len=instream.read (buffer))! =-1) {outstream.write (buffer, 0, Len);          } instream.close ();      return Outstream.tobytearray ();        } private static string Getimagestr (String imgurl) {byte[] data = null;        try {data =getimagefromnetbyurl (imgurl);;        } catch (Exception e) {e.printstacktrace ();        } Base64encoder encoder = new Base64encoder ();    return Encoder.encode (data); }

　　

Read images from remote paths for Base64 transcoding