415 error when submitting with form

I get a 415 error when submitting the form.

Front page:

<h2>consumes属性</h2>

<form action="user/addUser" method="post">

<input type="submit" value="normal form submission">

</form>

Backend controller:

@RequestMapping(value="/addUser",

method=RequestMethod.POST,

consumes="application/json")

public String addUser() {

return "success";

}

The reason for the 415 error is: The submitted content type of the processing request does not match.

Here, the browser's native <form> form, if the enctype attribute is not set, will eventually submit data in the form of application/x-www-form-urlencoded .

Change the background controller to:

@RequestMapping(value="/addUser",

method=RequestMethod.POST,

consumes=" application/x-www-form-urlencoded ")

public String addUser() {

return "success";

}