Reading from HTML 4.0 spec, page 224, The INPUT element:
"attribute name required for all but submit and reset"
Maros.
-----Original Message-----
From: Eric Noriega [mailto:[EMAIL PROTECTED]]
Sent: 19. j�la 2002 1:16
To: [EMAIL PROTECTED]
Subject: Re: Input hidden fields without name
I have found this to be correct. Browsers often don't bother to return
variables that have not been assigned a name in forms.
Tomer Cna'an wrote:
>As far as I know fields that don't have values are not sent by the browser.
>Try assigning the hidden field a value, and see if it works.
>
>Regards
>
>Tomer Cna'an
>
>----- Original Message -----
>From: "Luca Ventura" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Thursday, July 18, 2002 6:18 PM
>Subject: R: Input hidden fields without name
>
>
>>Hello!
>>
>>I tried to do it but the getParameterNames() method seems not to detect
>>
>the
>
>>hidden input field without a name !!! In fact using the
>>
>getParameterNames()
>
>>method I obtain all the parameters except those without a name....this is
>>the problem! :-(
>>
>>Let me know if you have a solution.
>>
>>Thanks,
>>
>> Luca
>>
>>-----Messaggio originale-----
>>Da: A mailing list for discussion about Sun Microsystem's Java Servlet
>>API Technology. [mailto:[EMAIL PROTECTED]]Per conto di
>>RBonazzo
>>Inviato: gioved� 18 luglio 2002 17.23
>>A: [EMAIL PROTECTED]
>>Oggetto: R: Input hidden fields without name
>>Priorit�: Alta
>>
>>
>>Hi Luca,
>>Why don't you try to create a form with this type of input field, send
>>it to a servlet and look the contain of the list of parameters you
>>receive in this case.
>>Use getParameterNames()
>>
>>Regards
>>Rinaldo
>>
>>
>>-----Messaggio originale-----
>>Da: A mailing list for discussion about Sun Microsystem's Java Servlet
>>API Technology. [mailto:[EMAIL PROTECTED]] Per conto di Luca
>>Ventura
>>Inviato: gioved� 18 luglio 2002 16.27
>>A: [EMAIL PROTECTED]
>>Oggetto: Input hidden fields without name
>>
>>
>>Hello everybody!
>>
>>Surfing in Internet I have seen that some html forms use input hidden
>>fields without name, like this:
>>
>><input type=hidden value="">
>>
>>It is very strange....what are they useful for??? :-(
>>
>>Anyway I would like to get in my Java servlets such type of parameters
>>but I don't know how to do because the getParameterNames() method of
>>HttpServletRequest object needs that the input field has a name to get
>>its value!
>>
>>Then I would ike to simulate an html form and I would like to be able to
>>send parameter without name (see above) to another servlet (called
>>"ServletB"): how can I do?
>>
>>To encode the parameters to send and their values I use this Java code:
>>
>>.
>>
>>String
>>ParamHtml=ParamName1+"="+URLEncoder.encode(ValueParam1)+"&"+ParamName2+U
>>RLEn
>>coder.encode(ValueParam2)+...;
>>HttpURLConnection Con = (HttpURLConnection)url.openConnection();
>>Con.setRequestMethod("POST");
>>Con.setDoOutput(true);
>>Con.setUseCaches(false);
>>Con.setRequestProperty("Content-Length",""+ParamHtml.length());
>>Con.setRequestProperty("Content-Type","application/x-www-form-urlencoded
>>");
>>ByteArrayOutputStream byteStream=new ByteArrayOutputStream(512);
>>PrintWriter out=new PrintWriter(byteStream,true); out.print(ParamHtml);
>>out.flush(); OutputStream Os=Con.getOutputStream();
>>byteStream.writeTo(Os);
>>
>>.
>>
>>In this case if ParamName1 is a parameter without name and without value
>>(<input type=hidden value="">)ParamNameHtml should have the following
>>value:
>>
>>=&ParamName2+URLEncoder.encode(ValueParam2)+...;
>>
>>Is it so? I tried to codify it in this way but when ServletB receives
>>the parameters it isn't able to read them because the syntax seems to be
>>wrong....:-(
>>
>>Can someone help me?
>>
>>Thanks in advance!
>>
>> Luca
>>
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