在带有选择字段的帖子上时，SpringMVC4错误错误请求

Question

I am getting an 400 Error - Bad Request

Type Status Report

Description The server cannot or will not process the request due to something that is perceived to be a client error (eg, malformed request syntax, invalid request message framing, or deceptive request routing).

The problem part on the form is comming from:

<form:select path="farm" required="required">
    <form:option value="NONE">--SELECT--</form:option>
    <form:options items="${farms}" itemValue="key" itemLabel="name"/>
</form:select>

this is the controller

@RequestMapping(value = "/saveUser", method = RequestMethod.POST)
public ModelAndView saveUser(@ModelAttribute User user) {
    if(user.getKey() == null) {
        user.setDateCreated(new Date());
        userService.addUser(user);
    }

    else userService.updateUser(user);

    return new ModelAndView("redirect:/users");
}

If I remove the select everything works correctly. Any help would be greatly appreciated.

Answer 1

Please check the value parameter inside select tag. Most of the times it creates a problem with the values containing hyphen or spaces etc. Eg value = "value - one" Browser doesn't recognize this. It should be like this value = "valueone" . Inspect the page element on browser and verify the select tag option values.