Passing parameters from jsp to Spring Controller method

Question

I am working in a Spring MVC application which uses Hibernate    In the JSP page I have a function which lists the values stored in the database currently all the value     I have written a method  where the list is only limited to an ID passed in the JSP file  I got the HQL query working right  so I know it is retrieving data based upon the ID as a parameter   Now  I would like to use this method in the controller  For that I have to pass a parameter of ID to the list  so in the controller side  the function is called which will retrieve list based upon that ID    Unfortunately I don t know how to pass parameters from a JSP file   JSP File       lt c url var  addAction  value   note add   gt  lt  c url gt   lt form form action    addAction   commandName  notices  gt       lt table gt           lt c if test     empty notices notetext   gt               lt tr gt                   lt td gt                       lt form label path  noticesid  gt                           lt spring message text  noticesid   gt                       lt  form label gt                   lt  td gt                   lt td gt                       lt form input path  noticesid  readonly  true  size  8   disabled  true    gt                       lt form hidden path  noticesid    gt                   lt  td gt               lt  tr gt           lt  c if gt           lt tr gt               lt td gt                   lt form label path  notetext  gt                       lt spring message text  notetext   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  notetext     gt               lt  td gt           lt  tr gt           lt tr gt               lt td gt                   lt form label path  notetag   gt                       lt spring message text  notetag   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  notetag   gt               lt  td gt           lt  tr gt           lt tr gt               lt td gt                   lt form label path  notecolor  gt                       lt spring message text  notecolor   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  notecolor    gt               lt  td gt           lt  tr gt            lt tr gt               lt td gt                   lt form label path  canvasid  gt                       lt spring message text  canvasid   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  canvasid    gt               lt  td gt           lt  tr gt            lt tr gt               lt td gt                   lt form label path  sectionid  gt                       lt spring message text  sectionid   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  sectionid     gt               lt  td gt           lt  tr gt            lt tr gt               lt td gt                   lt form label path  canvasnName  gt                       lt spring message text  canvasnName   gt                   lt  form label gt               lt  td gt               lt td gt                   lt form input path  canvasnName     gt               lt  td gt           lt  tr gt             lt tr gt               lt td colspan  2  gt                   lt c if test     empty notices noticesid   gt                       lt input type  submit                             value   lt spring message text  Edit note   gt     gt                   lt  c if gt                   lt c if test    empty notices notetext   gt                       lt input type  submit                             value   lt spring message text  Add note   gt     gt                   lt  c if gt               lt  td gt           lt  tr gt       lt  table gt   lt  form form gt   lt br gt   lt h3 gt Notes List lt  h3 gt    lt c url var  listAction  value   note list 2323   gt  lt  c url gt   lt c if test     empty notices noticesid   gt       lt table class  tg  gt           lt tr gt               lt th width  80  gt Notes ID lt  th gt               lt th width  120  gt Notes text lt  th gt               lt th width  120  gt Note Tag lt  th gt               lt th width  120  gt Note color lt  th gt               lt th width  120  gt Note section lt  th gt               lt th width  120  gt Canvas id lt  th gt               lt th width  120  gt Canvas name lt  th gt               lt th width  120  gt Other id lt  th gt               lt th width  60  gt Edit lt  th gt               lt th width  60  gt Delete lt  th gt           lt  tr gt           lt c forEach items    listNotes   var  notices  gt               lt tr gt                   lt td gt   notices noticesid  lt  td gt                   lt td gt   notices notetext  lt  td gt                   lt td gt   notices notetag  lt  td gt                   lt td gt   notices notecolor  lt  td gt                   lt td gt   notices sectionid  lt  td gt                   lt td gt   notices canvasid  lt  td gt                   lt td gt   notices canvasnName  lt  td gt                   lt td gt   notices personid  lt  td gt                   lt td gt  lt a href   lt c url value   editnote   notices noticesid     gt    gt Edit lt  a gt  lt  td gt                   lt td gt  lt a href   lt c url value   removenote   notices noticesid     gt    gt Delete lt  a gt  lt  td gt               lt  tr gt           lt  c forEach gt       lt  table gt   lt  c if gt    Controller file with list function     RequestMapping value     note list  id    method RequestMethod GET      public String listNotes  PathVariable int id Model model            Person person   personService getCurrentlyAuthenticatedUser            this setSectionid id           model addAttribute  person   new Person             model addAttribute  listPersons   this personService listPersons            model addAttribute  listNotes  this notesService listNotesBySectionId id person            return  note           RequestMapping value    note add       public String addNote  ModelAttribute  notices   Notes p Model model            Person person   personService getCurrentlyAuthenticatedUser            model addAttribute  listNotes  this notesService listNotes              int id   getSectionid            System out println  Section id is  id            model addAttribute  listNotes  this notesService listNotesBySectionId id person            this notesService addNote p  person           return  note           I tried looking up the net  but I don t know what it is called that I am looking for  so having a hard time  Any help would be good  Thank you

User · Answer

Use the  RequestParam to pass a parameter to the controller handler method   In the jsp your form should have an input field with name    id  like the following     lt input type  text  name  id    gt   lt input type  submit    gt    Then in your controller  your handler method should be like the following     RequestMapping  listNotes   public String listNotes  RequestParam  id   int id        Person person   personService getCurrentlyAuthenticatedUser        model addAttribute  person   new Person         model addAttribute  listPersons   this personService listPersons         model addAttribute  listNotes   this notesService listNotesBySectionId id  person        return  note       Please also refer to these answers and tutorial    Stackoverflow    How take the parameter value of a GET HTTP Request  Stackoverflow    Which Signature to use in spring s controller methods  Tutorial    Spring MVC Annotations

User · Answer

Your controller method should be like this    RequestMapping value       lt your mapping gt   id    method RequestMethod GET  public String listNotes  PathVariable  id  int id Model model        Person person   personService getCurrentlyAuthenticatedUser        int id   2323      Currently passing static values for testing     model addAttribute  person   new Person         model addAttribute  listPersons   this personService listPersons         model addAttribute  listNotes  this notesService listNotesBySectionId id person        return  note       Use the id in your code  call the controller method from your JSP as     your mapping   your id    UPDATE   Change your jsp code to    lt c forEach items    listNotes   var  notices  varStatus  status  gt       lt tr gt           lt td gt   notices noticesid  lt  td gt           lt td gt   notices notetext  lt  td gt           lt td gt   notices notetag  lt  td gt           lt td gt   notices notecolor  lt  td gt           lt td gt   notices sectionid  lt  td gt           lt td gt   notices canvasid  lt  td gt           lt td gt   notices canvasnName  lt  td gt           lt td gt   notices personid  lt  td gt           lt td gt  lt a href   lt c url value   editnote   listNotes status index  noticesid     gt    gt Edit lt  a gt  lt  td gt           lt td gt  lt a href   lt c url value   removenote   listNotes status index  noticesid     gt    gt Delete lt  a gt  lt  td gt       lt  tr gt   lt  c forEach gt

[spring] Passing parameters from jsp to Spring Controller method

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