SpringMVC RequestMapping for GET parameters

Question

How to make the RequestMapping to handle GET parameters in the url  For example i have this url  http   localhost 8080 userGrid  search false amp nd 1351972571018 amp rows 10 amp page 1 amp sidx id amp sord desc    from jqGrid   how should my RequestMapping look like  I want to get the parameters using HttpReqest  Tried this    RequestMapping   userGrid       public  ResponseBody GridModel getUsersForGrid HttpServletRequest request    but it doesn t work

User · Answer

If you are willing to change your uri  you could also use PathVariable    RequestMapping value   mapping foo  foo   bar    method RequestMethod GET  public String process  PathVariable String foo  PathVariable String bar          Perform logic with foo and bar     NB  The first foo is part of the path  the second one is the PathVariable

User · Answer

You can add  RequestMapping like so    RequestMapping   userGrid   public  ResponseBody GridModel getUsersForGrid      RequestParam   search   String search      RequestParam String nd      RequestParam int rows      RequestParam int page      RequestParam String sidx       RequestParam String sord

User · Answer

This works in my case    RequestMapping value     savedata               params     textArea    localKey    localFile         ResponseBody     public void saveData  RequestParam value    textArea   String textArea                            RequestParam value    localKey   String localKey                            RequestParam value    localFile   String localFile

User · Answer

This will get ALL parameters from the request  For Debugging purposes only    RequestMapping  value     promote   method    RequestMethod POST  RequestMethod GET   public ModelAndView renderPromotePage  HttpServletRequest request        Map lt String  String   gt  parameters   request getParameterMap         for String key   parameters keySet              System out println key           String   vals   parameters get key           for String val   vals              System out println   - gt      val              ModelAndView mv   new ModelAndView        mv setViewName  test        return mv

User · Answer

You should write a kind of template into the  RequestMapping   http   localhost 8080 userGrid  search   search  amp nd   nd  amp rows   rows  amp page   page  amp sidx   sidx  amp sord   sord    Now define your business method like following    RequestMapping   userGrid  search   search  amp nd   nd  amp rows   rows  amp page   page  amp sidx   sidx  amp sord   sord    public  ResponseBody GridModel getUsersForGrid   RequestParam value    search   String search    RequestParam value    nd   int nd    RequestParam value    rows   int rows    RequestParam value    page   int page    RequestParam value    sidx   int sidx    RequestParam value    sort   Sort sort                        So  framework will map   foo  to appropriate  RequestParam    Since sort may be either asc or desc I d define it as a enum   public enum Sort       asc  desc     Spring deals with enums very well

User · Answer

Use  RequestParam in your method arguments so Spring can bind them  also use the  RequestMapping params array to narrow the method that will be used by spring  Sample code    RequestMapping   userGrid    params      search    nd    rows    page    sidx    sort    public  ResponseBody GridModel getUsersForGrid   RequestParam value     search   String search    RequestParam value    nd   int nd    RequestParam value    rows   int rows    RequestParam value    page   int page    RequestParam value    sidx   int sidx    RequestParam value    sort   Sort sort       Stuff here     This way Spring will only execute this method if ALL PARAMETERS are present saving you from null checking and related stuff

[java] SpringMVC RequestMapping for GET parameters

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