java实现新浪微博Oauth接口发送图片和文字的方法

/*** 发表带图片的微博* @param token* @param tokenSecret* @param aFile* @param status* @param urlPath* @return*/public String uploadStatus(String token, String tokenSecret, File aFile, String status, String urlPath) {  httpOAuthConsumer = new DefaultOAuthConsumer(consumerKey,consumerSecret);  httpOAuthConsumer.setTokenWithSecret(token,tokenSecret);  String result = null;  try {   URL url = new URL(urlPath);   HttpURLConnection request = (HttpURLConnection) url.openConnection();   request.setDoOutput(true);   request.setRequestMethod("POST");   HttpParameters para = new HttpParameters();   para.put("status", URLEncoder.encode(status,"utf-8").replaceAll("//+", "%20"));   String boundary = "---------------------------37531613912423";   String content = "--"+boundary+"/r/nContent-Disposition: form-data; name=/"status/"/r/n/r/n";   String pic = "/r/n--"+boundary+"/r/nContent-Disposition: form-data; name=/"pic/"; filename=/"image.jpg/"/r/nContent-Type: image/jpeg/r/n/r/n";   byte[] end_data = ("/r/n--" + boundary + "--/r/n").getBytes();   FileInputStream stream = new FileInputStream(aFile);   byte[] file = new byte[(int) aFile.length()];   stream.read(file);   request.setRequestProperty("Content-Type", "multipart/form-data; boundary="+boundary); //设置表单类型和分隔符   request.setRequestProperty("Content-Length", String.valueOf(content.getBytes().length + status.getBytes().length + pic.getBytes().length + aFile.length() + end_data.length)); //设置内容长度   httpOAuthConsumer.setAdditionalParameters(para);   httpOAuthConsumer.sign(request);   OutputStream ot = request.getOutputStream();   ot.write(content.getBytes());   ot.write(status.getBytes());   ot.write(pic.getBytes());   ot.write(file);   ot.write(end_data);   ot.flush();   ot.close();   request.connect();   if (200 == request.getResponseCode()) {    result = "SUCCESS";   }  } catch (FileNotFoundException e1) {   e1.printStackTrace();  } catch (IOException e) {   e.printStackTrace();  } catch (OAuthMessageSignerException e) {   e.printStackTrace();  } catch (OAuthExpectationFailedException e) {   e.printStackTrace();  } catch (OAuthCommunicationException e) {   e.printStackTrace();  }  return result;}