android http通讯(一) HttpURLConntection

android http通信(一) HttpURLConntection

举例：从网络上下载图片

public static byte[] readStreamtoBytes(InputStream instream) throws IOException{        ByteArrayOutputStream outstream =new ByteArrayOutputStream();        int len=-1;    byte[] b = new byte[1024];while((len = instream.read(b)) != -1){     outstream.write(b, 0, len);    } outstream.flush(); outstream.close(); instream.close();  return outstream.toByteArray();        }

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