Java 403尝试从Android建立连接时出现响应错误

当我尝试在Android上发布HTTP帖子时，会出现以下异常：

java.io.FileNotFoundException

然而，在桌面上通过浏览器浏览时，同样的功能也可以正常工作

执行此行时显示异常：

InputStream inputStream = httpURLConnection.getInputStream();

这是我的日志：

我已尝试使用以下代码：

@Override
        protected String doInBackground(String... args) {

            try {
                // setting the URL
                URL url = new URL(baseUrl+args[1]);
                HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
                httpURLConnection.addRequestProperty("User-Agent", "RealTimeApps/1.0");
                // setting the method type
                httpURLConnection.setRequestMethod(args[0]);
                httpURLConnection.setChunkedStreamingMode(0);
                httpURLConnection.setDoInput(true);
                httpURLConnection.setDoOutput(true);
                OutputStream outputStream = httpURLConnection.getOutputStream();
                BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));

                Log.v("Url",args[2]);
                // setting the identification key name with query params
                bufferedWriter.write(args[2]);
                bufferedWriter.flush();
                bufferedWriter.close();

                Log.v("GetPostA", url.toString());

                int getPostStatus = httpURLConnection.getResponseCode();

                Log.v("GetPostSts", String.valueOf(getPostStatus));

                String line = "";
                String res = "";
//                if(getPostStatus == 200){

                    // prepare the output buffer
                    InputStream inputStream = httpURLConnection.getInputStream();
                    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));

                    while ((line = bufferedReader.readLine()) != null) {

                        res += line;

                    }

                    inputStream.close();

//                }

                httpURLConnection.disconnect();

                switch (args[3]){
                    case "1":
                        responseStrLogin = res.toString();
                        break;
                    case "2":
                        responseStrSignUp = res.toString();
                        break;
                    case "3":
                        responseStrFriendList = res.toString();
                        break;
                    case "4":
                        responseStrUpdateLocation = res.toString();
                        break;
                    case "5":
                        responseStrSettings = res.toString();
                        break;
                    case "6":
                        responseStrSearchFriendForRequest = res.toString();
                        break;
                    case "7":
                        responseStrSendFriendRequest = res.toString();
                        break;
                    case "8":
                        responseStrUserFriendRequestList = res.toString();
                        break;
                    case "9":
                        responseStrApproveFriendRequest = res.toString();
                        break;
                    case "10":
                        responseStrProfileDetails = res.toString();
                        break;
                    case "11":
                        responseStrCarDetails = res.toString();
                        break;
                    case "12":
                        responseStrCorporateDetails=res.toString();
                        break;
                    case "13":
                        responseStrPasswordChange=res.toString();
                        break;
                    case "14":
                        responseStrLocationShareToggle=res.toString();
                        break;
                    case "15":
                        responseStrToggleStatus=res.toString();
                        break;
                    case "16":
                        responseStrForgetPassword=res.toString();
                        break;
                    case "17":
                        responseStrSearchResult=res.toString();
                        break;
                    case "18":
                        responseStrDeleteFriend=res.toString();
                        break;
                    case "19":
                        responseStrSearchResultFriendList=res.toString();
                        break;
                    case "20":
                        responseStrShowFriendList=res.toString();
                        break;
                    case "21":
                        responseStrShowFriendProfileDetails=res.toString();
                        break;
                    case "22":
                        responseStrTimeSetForIndividuals=res.toString();
                        break;
                    case "23":
                        responseStrFriendListPeriod=res.toString();
                        break;

                    case "24":
                        responseStrFriendsRouteLatLng=res.toString();
                        break;

                    default:
                       responseStr = res.toString();
                        break;
                }
                Log.v("ResD", res.toString());
                return res.toString();

            } catch (MalformedURLException e) {

                e.printStackTrace();
                Log.v("GetPostCatchMal",e.toString());

            } catch (IOException e) {
                e.printStackTrace();
                Log.v("GetPostCatchIOE", e.toString());
            }

            return null;

        }

---

您没有连接url连接

加

就在

int getPostStatus = httpURLConnection.getResponseCode();

仅当url连接响应正常时才执行其余操作，如

if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
  //do your stuff
}

你也可以在这里查看我的答案：

更新

---

如果添加了

httpURLConnection.connect（）。我尝试了你的URL，但发现该文件不可用。请提供一个特定的文件地址（如systechdigital.com/projects/friendLocation/login/checkLogin/index.php）作为url，然后重试。
多次尝试后，问题就解决了。我在下面提到的行中得到了403的响应：
httpURLConnection.setChunkedStreamingMode（0）；我强制设置了块长度0，这就是问题所在。谢谢大家的合作。
有关更多信息，请访问以下链接：
服务器在哪里？它在你的本地桌面上吗？HTTP代码403是禁止的。不，它是公共服务器：操作url：我使用Fiddler从我的桌面发了一篇帖子，也返回了200。您是否授予在de android设备上访问internet的权限？是的，我授予了，下面是我在我的应用程序中使用的权限列表：您能否解释为什么添加此“httpURLConnection.addRequestProperty（“用户代理”，“RealTimeApps/1.0”）请给我你的新日志03-20 10:54:01.541 9066-9602/com.tracker.systechdigital.realtimetracking和monitoring V/GetPostSts:403 03-20 10:54:01.551 9066-9602/com.tracker.systechdigital.realtimetracking和monitoring V/getpostchioe:java.io.filenotfound异常：我检查了你的服务器。它在php中也不可用。所以试着给出一个特定的php文件地址作为url。您是否在checkLogin文件夹中提供了index.php文件？亲爱的#测试这是一个MVC应用程序，这就是（.php）不可用的原因。“login”是控制器，checkLogin是该控制器的方法。
int getPostStatus = httpURLConnection.getResponseCode();

if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
  //do your stuff
}