Spring MVC: How to redirect to a page with error?

Question

I am trying to make my Controller to redirect to a page with a custom error message:

    @RequestMapping(method=RequestMethod.POST)
    public String process         


        

Answer 1

There's something wrong in your controller method. It would be better way to call getAllErrors() method from result than the getFieldErrors(). Of course if the result is BindingResult type . Like this:

model.addAttribute("errors", result.getAllErrors());

Answer 2

You can add the following section in your jsp--

<c:choose>
<c:when test="${not empty  errors}">
    <div class="error">
    <c:forEach items="${errors}" var="err">
        ${err.defaultMessage}
        <br/>
    </c:forEach>
    </div>
</c:when>
</c:choose>

Here c is nothing but this--

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

Also you need to pass the errors into the model and view like this inside the if block in your controller method--

model.addAttribute("errors",result.getFieldErrors());

error class in the DIV is nothing but my custom css to display as a red block--

.error{
    color: red;
    border:2px solid red;
    padding:10px;

}

You can also have a look at this
Hope my answer has helped you..