我有一组对象,我试图通过 POST 发送到 API。第一个对象将按原样通过,然后我得到:
java.net.ProtocolException: cannot write request body after response has been read
我相当肯定这只是我做事的顺序,但我仍在学习 Android 并且一直试图弄清楚一个小时和一点。
以为我会向你们寻求帮助!我需要接收对 POST 的每个响应,以便我可以将其 psrse 用于稍后使用的 ID 字段。你会看到我在我的 FOR 循环中解析它,然后将 ID 存储在一个列表中,稍后我将循环访问。
下面的 POST 代码:
try {
url = new URL("##Edited Out##");
conn = (HttpsURLConnection) url.openConnection();
// Create the SSL connection
sc = SSLContext.getInstance("TLS");
sc.init(null, null, new SecureRandom());
conn.setSSLSocketFactory(sc.getSocketFactory());
// Use this if you need SSL authentication
String userpass = "##Edited Out##:##Edited Out##";
String basicAuth = "Basic " + Base64.encodeToString(userpass.getBytes(), Base64.DEFAULT);
conn.setRequestProperty("Authorization", basicAuth);
conn.setRequestProperty("Content-Type", "application/json;odata=verbose");
// set Timeout and method
conn.setReadTimeout(7000);
conn.setConnectTimeout(7000);
conn.setRequestMethod("POST");
conn.setDoInput(true);
conn.setDoOutput(true);
conn.connect();
JSONObject juo = new JSONObject();
for (int i = 0; i<objects.size(); i++){
juo.put("Field1", "Data for field 1 here");
juo.put("Field2", "Data for field 2 here");
juo.put("Field3", "Data for field 3 here");
wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(juo.toString());
wr.flush();
wr.close();
Log.d("ITEM STRING", juo.toString());
BufferedReader br = new BufferedReader(new InputStreamReader(
conn.getInputStream(), "utf-8"));
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
br.close();
Log.d("HTTP BR", "" + sb.toString());
jObject = XML.toJSONObject(sb.toString());
Log.d("JSON OBJECT", jObject.toString());
JSONObject menuObject = jObject.getJSONObject("entry");
JSONObject contentObject = menuObject.getJSONObject("content");
JSONObject propertiesObject = contentObject.getJSONObject("m:properties");
JSONObject productObject = propertiesObject.getJSONObject("d:Product_Id");
String retProId = productObject.getString("content");
partIDs.add(retProId);
Log.d("PART ID", retProId);
}
int HttpResult = conn.getResponseCode();
Log.d("HTTP RESULT", String.valueOf(HttpResult));
Log.d("HTTP RESPONSE", conn.getResponseMessage());
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (KeyManagementException e) {
e.printStackTrace();
} catch (ProtocolException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return null;
编辑:关于下面的重复评论我收到的错误略有不同。我理解它的原理,但我的 .getRespondeCode 不在我的 for 循环之外,它应该循环通过。但事实并非如此。
如果 objects.size>=2 会发生此错误
我需要为每个发布的对象获取服务器响应字符串,因为它包含我需要解析的 ID。