how to get param in method post spring mvc?

Question

I'm using spring mvc. And I can't get param from url when method = post. But when I change method to GET, so I can get all param.

This is my form:

<form method="POST" action="http://localhost:8080/cms/customer/create_customer" id="frmRegister" name ="frmRegister" enctype="multipart/form-data">     <input class ="iptRegister" type="text" id="txtEmail" name="txtEmail" value="" />     <input class ="iptRegister" type="password" id="txtPassword" name="txtPassword" value="" />     <input class ="iptRegister" type="text" id="txtPhone" name="txtPhone" value="" />      <input type="button" id="btnRegister" name="btnRegister" value="Register" onclick="" style="cursor:pointer"/> </form> 

This is my controller:

@RequestMapping(value= "/create_customer", method = RequestMethod.POST) @ResponseBody public String createCustomer(HttpServletRequest request,          @RequestParam(value="txtEmail", required=false) String email,          @RequestParam(value="txtPassword", required=false) String password,          @RequestParam(value="txtPhone", required=false) String phone){      ResultDTO<String> rs = new ResultDTO<String>();     rs.setStatus(IConfig.SHOW_RESULT_SUCCESS_ON_MAIN_SCREEN);     try{         Customer c = new Customer();         c.setEmail(email);         c.setPassword(password);         c.setPhone(phone);         customerService.insert(c);         rs.setData("Insert success");     }catch(Exception ex){         log.error(ex);         rs.setStatus(IConfig.SHOW_RESULT_ERROR_ON_MAIN_SCREEN);         rs.setData("Insert failure");     }     return rs.toString(); } 

How can I resolved this?

Answer 1

1. Spring annotations will work fine if you remove enctype="multipart/form-data".

   @RequestParam(value="txtEmail", required=false) 

2. You can even get the parameters from the request object .

   request.getParameter(paramName); 

3. Use a form in case the number of attributes are large. It will be convenient. Tutorial to get you started.

4. Configure the Multi-part resolver if you want to receive enctype="multipart/form-data".

   <bean id="multipartResolver"   class="org.springframework.web.multipart.commons.CommonsMultipartResolver">     <property name="maxUploadSize" value="250000"/> </bean> 

Refer the Spring documentation.

Answer 2

It also works if you change the content type

    <form method="POST"     action="http://localhost:8080/cms/customer/create_customer"     id="frmRegister" name="frmRegister"     enctype="application/x-www-form-urlencoded"> 

In the controller also add the header value as follows:

    @RequestMapping(value = "/create_customer", method = RequestMethod.POST, headers = "Content-Type=application/x-www-form-urlencoded")