我们可以使用@RequestParam（“ custCode”）获得id =“ CodeTxt”

Question

jsp:

<form:input mandatory="true" id="CodeTxt" path="custCode" cssClass="txtfield
 controlWidth" readonly="false"jsValidation="checkAlphaNumeric" />

Controller class:

public @ResponseBody JsonResult fetchCustomerList(@ModelAttribute("customer")Customer customer,@RequestParam("custCode") String customerCode

do we fetch our parameters with name or id if yes then how we are fetching the values from @RequestParam("custCode") .Are we mapping our parameter with path="custCode" ?? did JsonResult has done some thing behind the screen?? this is a code snippet and running properly.

Answer 1

When you send a form request to a server, form data are available as key / value pairs, where the key is the name of the form field (HTML attribute name="custCode" is generated for you when you use: path="custCode" ). Id attribute is not relevant in this case and you cannot reference form field by its id instead of name attribute.

If you need to retrieve value of the id you can store it as an additional hidden field value for example:

<input type="hidden" name="custCodeFieldId" value="codeTxt"  /> 

and then retrieve the value of id using additional @RequestParam("custCodeFieldId") String custCodeFieldId