furyfish furyfish - 6 months ago 8
Java Question

how to get param in method post spring mvc?

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. 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.

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