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QNetworkaccessmanager - post

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  • F Offline
    F Offline
    fluca1978
    wrote on last edited by
    #5

    In your (truncated) for cycle you are assigning the same parameter multiple times. Is that what you really want to achieve? I believe you want to concat the values into a single variable.

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    • T Offline
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      toho71
      wrote on last edited by
      #6

      i want to post
      postData.append("m_iFuelSensor=") ;// Value
      as a list to the server.

      it could be one or many values
      not as a singel variabel;

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      • F Offline
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        fluca1978
        wrote on last edited by
        #7

        @ QByteArray postData;
        postData.append("m_iFuelSensor=");
        for (int i = 0; i < selectedToAck.size(); ++i)
        postData.append(model->item(index.row(),0)->data(Qt::DisplayRole).toString());
        @

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        • T Offline
          T Offline
          toho71
          wrote on last edited by
          #8

          No "?" ?
          Because now all the values are in the variabel and its gonna be a big number.
          Shouldn't i have some sort of delimiter maybe

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          • T Offline
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            toho71
            wrote on last edited by
            #9

            More errors
            I got the errorcode 302 unknown error when i do my post but it changes the value in the textbox.
            if I send one value.
            When i changed to get operation I got the errorcode 200 "OK"
            If someone have a simple example to show or some great hints to get me go on with this "Problem"
            I would be very happy.

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            • F Offline
              F Offline
              fluca1978
              wrote on last edited by
              #10

              [quote author="toho71" date="1324472734"]No "?" ?
              Because now all the values are in the variabel and its gonna be a big number.
              Shouldn't i have some sort of delimiter maybe[/quote]

              You are right, at each iteration you have to add a delimiter.

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              • T Offline
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                toho71
                wrote on last edited by
                #11

                Ok thank you but it still doesn't work as i expected.
                Same problems and no update of the webpage.
                Maybe I have to do it in another way becaus when I use ex. Wireshark I dont see the incoming values in my postoperation.
                Strange.

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                • F Offline
                  F Offline
                  fluca1978
                  wrote on last edited by
                  #12

                  What if you try to make a GET request? Just to see if the data is sent or not.

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                  • T Offline
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                    toho71
                    wrote on last edited by
                    #13

                    I got the errorcode 302 unknown error when i do my post but it changes the value in the textbox when i update the webpage and if I send one value?

                    When i changed to get operation I got the errorcode 200 == “OK”

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                    • F Offline
                      F Offline
                      fluca1978
                      wrote on last edited by
                      #14

                      I would start doing a post request with another tool, let say wget, and see how the request must be done and then reproduce it in Qt.

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                      • T Offline
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                        toho71
                        wrote on last edited by
                        #15

                        This can't be a problem in qt but I don't know how to do it properly.

                        It must be someone else who have done this before.

                        Maybe I have to use Qhttp instead

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                        • G Offline
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                          goetz
                          wrote on last edited by
                          #16

                          [quote author="toho71" date="1324560334"
                          Maybe I have to use Qhttp instead
                          [/quote]

                          You will run into the very same problems with constructing the URL and/or preparing the post data. You will need to understand HTTP protocol basics before using it in a class.

                          http://www.catb.org/~esr/faqs/smart-questions.html

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                          • T Offline
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                            toho71
                            wrote on last edited by
                            #17

                            I'm sorry but after reading more about this subject I'm still not able to go further so If some nice person would tell me a little more how to take the next step so I got this code working with Post request it would be great.

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                            • F Offline
                              F Offline
                              fluca1978
                              wrote on last edited by
                              #18

                              Do you have the exact list of parameters as they have to be sent to the server to perform a correct post request? How is your code working now and what is the exact problem?

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                              • T Offline
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                                toho71
                                wrote on last edited by
                                #19

                                I have a list in a table and when I check (Chkbox) some rows in that table I got a list of numbers that I want to post to a list on the server. It works with one value when I refresh the browserwindow but not with more values.

                                //T

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                                • F Offline
                                  F Offline
                                  fluca1978
                                  wrote on last edited by
                                  #20

                                  I suspect your cgi/web application does not allow you to set multiple values at once, or has a special formatting for such values. Do you have the specifics of the parameters your web application is accepting? Otherwise you have to guess and try.

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                                  • T Offline
                                    T Offline
                                    toho71
                                    wrote on last edited by
                                    #21

                                    Ok thank you for the tip.

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