java - How to pass key-value pair from jsp to servlet? -


I have a faculty institution, subject and mark unit, each faculty has a list of elementary topics

When the applicant wants to apply for some faculty, then he should enter his marks in the initial subjects and his school diploma (college, whatever).

And I like this value as key-value pair such as subject-mark .

So for now I have apply.jsp page two list & lt; Subject & gt; In the list , go to the form of request attributes in the all topics - this is for the diploma, and in another list Faculty topics - they are preliminary

My apply.jsp Pages listed below: 

  & lt;% @ Page language = "java" contentType = "text / html; charset = UTF-8" page encoding = "UTF-8"%> & Lt ;! DOCTYPE HTML PUBLIC "- // W3C // DTD HTML 4.01 Transcription // N" "http://www.w3.org/TR/html4/loose.dtd"> & Lt;% @ taglib prefix = "c" yur = "http://java.sun.com/jsp/jstl/core"% & gt; & Lt; Html & gt; & Lt; Top & gt; & Lt; Meta http-equiv = "content-type" content = "text / html; charset = UTF-8" & gt; & Lt; Title & gt; Apply for $ {faculty.name} & lt; / Heading & gt; & Lt; / Head & gt; & Lt; Body & gt; You are applying to the client for the Faculty View! & Lt; H1 & gt; $ {Name} & lt; / H1> & Lt; Ul & gt; & Lt; Li & gt; & Lt; Label & gt; Name of Faculty: & lt; / Labels & gt; & Lt; C: Out value = "$ {name}" & gt; & Lt; / C: Out & gt; & Lt; / Li & gt; & Lt; Li & gt; & Lt; Label & gt; Total seats: & lt; / Labels & gt; & Lt; C: out value = "$ {total_seats}" & gt; & Lt; / C: Out & gt; & Lt; / Li & gt; & Lt; Li & gt; & Lt; Label & gt; Budget Seat: & lt; / Labels & gt; & Lt; C: Out value = "$ {budget_seats}" & gt; & Lt; / C: Out & gt; & Lt; / Li & gt; & Lt; / Ul & gt; & Lt; Form action = "controller" method = "post" & gt; & Lt; Input type = "hidden" name = "command" value = "applicable faculty" /> & Lt; Input type = "hidden" name = "show" value = "wrong" /> & Lt; Input type = "hidden" name = "faculty subjects" value = "$ {faculty topics}" /> & Lt; Input type = "hidden" name = "all topics" value = "$ {all topics}" /> & Lt; H1 & gt; Your starting issue & lt; / H1> & Lt; Table ID = "Initial" & gt; & Lt; C: forEach var = "faculty subject" item = "$ {faculty topics}" & gt; & Lt; TR & gt; & Lt; Td> & Lt; C: Out value = "$ {faculty.Subject.name}" & gt; $ {FacultySubject.name} & lt; / C: out & gt; & Lt; / TD & gt; & Lt; Td> & Lt; Input type = "text" name = "primary mark" value = "" /> gt; & Lt; / Td> & Lt; / TR & gt; & Lt; / C: foreach & gt; & Lt; / Table & gt; & Lt; H1 & gt; Your Diploma Issue & lt; / H1> & Lt; Table id = "diploma" & gt; & Lt; C: forEach var = "subject" item = "$ {allSubjects}" & gt; & Lt; TR & gt; & Lt; Td> & Lt; C: Out value = "$ {subject.id}" & gt; $ {Subject.name} & lt; / C: Out & gt; & Lt; / Td> & Lt; Td> & Lt; Input type = "text" name = "diploma mark" value = "" /> gt; & Lt; / Td> & Lt; / TR & gt; & Lt; / C: foreach & gt; & Lt; / Table & gt; & Lt; P & gt; & Lt; Input type = "submit" value = "OK" & gt; & Lt; / P & gt; & Lt; / Form & gt; & Lt; / Body & gt; & Lt; / Html & gt;

So how should I convert it to get the required functionality?

PS If this is easy to do - actually in the topic id field for the required information in the insert

Please try something like the following: 

  Lt; C: Each Variable = "Faculty Subject" item = "$ {faculty topics}" & gt; & Lt; TR & gt; & Lt; Td> & Lt; C: Out value = "$ {faculty.Subject.name}" & gt; $ {FacultySubject.name} & lt; / C: out & gt; & Lt; / TD & gt; & Lt; Td> & Lt; Input type = "text" name = "topic_ $ {faculty.Subject.id}" value = "" /> gt; & Lt; / Td> & Lt; / TR & gt; & Lt; / C: foreach & gt;

And do the following in your servlet: 

  Maps & lt; String, string []> Parametermap = request.getParameterMap (); (String key: parametermap.cset ()) {if (key.startsWith ("subject_")) / / what ever you want here}}

Hope that helps is. / P>


Comments

Post a Comment

Popular posts from this blog

python - Overriding the save method in Django ModelForm -

I'm having trouble overriding a ModelForm save method. I get this error I'm: Exception type: TypeErier Exception Value: Save () found an unexpected keyword argument 'committed' My intentions include a form 3 fields Submit several values ​​for, then create an object for each combination of those areas, and to save each object file models.py class collarsult type (models.Model): id = model. AutoField (db_column = 'icontact_result_code_type_id', primary_key = true) callResult = models.ForeignKey ( 'CallResult', db_column = 'icontact_result_code_id') campaign = models.ForeignKey ( 'campaign', db_column = 'icampaign_id') CALLTYPE = models.ForeignKey ( 'CALLTYPE', db_column = 'icall_type_id') agent = models.BooleanField (db_column = 'bagent', default = true) teamLeader = models.BooleanField (db_column = 'bTeamLeader', default = true) active = models.BooleanField (db_column = Django.form...
Read more

html - CSS autoheight, but fit content to height of div -

I have a div in which there are three children- div in the left and middle div: float: left while true: float: true because it is my layout Actually will spoil, I've used ClearFix Hack: .cf {zoom: 1; }. Cf: First,. Cf: {content: ""; Display: Table; }. Cf: After {clear: both; } It still works, but I want to be the right div an indicator. So it should fill 100% of the parent unit of height. How can I complete this? PS is the full code: & Lt; / Div & gt; & Lt; Div class = "mobile_content" & gt; & Lt; H5 & gt; {{Data.titel}} & lt; / H5> & Lt; Table & gt; & Lt; TR & gt; & Lt; Th & gt; Komponist: & lt; / Th & gt; & Lt; TD & gt; {{Data.komponist}} & lt; / TD & gt; & Lt; / TR & gt; & Lt; TR & gt; & Lt; Th & gt; Instrument: & lt; / Th & gt; & Lt; TD & gt; {{Data.instrumente}} & lt; / TD & gt; & Lt; / TR & gt;...
Read more

qt - How to prevent QAudioInput from automatically boosting the master volume to 100%? -

I have been trying to use Qt5 multimedia to record audio with QAudioInput, however, when I see If QAudioInput is started, it increases the master volume of my sound device to 100%. How can I prevent QAudioInput from changing the master volume? My current development platform is Linux with PalsAdio (with flat audio disabled). How can I use QAudioInput : QAudioDeviceInfo device_info = QAudioDeviceInfo :: defaultInputDevice (); QAudio format format; Format.setSampleRate (44100); Format.setChannelCount (1); Format.setSampleSize (16); Format.setCodec ("Audio / PCM"); Format.setSampleType (QAudioFormat :: SignedInt); Format.setByteOrder (QAudioFormat :: LittleEndian); Std :: cout & lt; & Lt; Device_info.deviceName (). ToUtf8 (). ConstData () & lt; & Lt; Std :: endl; QAudioInput * default_device = new QAudioInput (device_info, format); QIODevice * default_io_device = default_device-> Start (); a QAudioInput.setVolume () method is not you I ...
Read more