Spring MVC : How to pass Model object from one method in controller to another method in same controller? -

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i have integrated spring security in application , , display error message user in case of bad credentials. jsp:

    <c:out value='${secerror}' /> //prints nothing on screen     <c:if test="${empty secerror}">     error empty or null. //always prints line on screen     </c:if>     <c:if test="${not empty secerror}">     <div class="errorblock">         login attempt not successful, try again.<br /> caused :         ${sessionscope["spring_security_last_exception"].message}     </div>     </c:if>      <c:set var = "url" value = "/j_spring_security_check" />     <form:form method="post" commandname="portallogin" action="${pagecontext.servletcontext.contextpath}${url}" name="f">

[update]: sorry all, realized model object getting overriden after redirect portallogin.html had created new model object created there previously. tried few easy options can pass model object 1 controller method method in same controller. nothing worked.

  1. i tried using forward: prefix instead of redirect prefix. this, didn't error message @ all.

  2. i tried below code in loginerror method.

        return new modelandview("portallogin","secerror","true");

i getting following error above code:

        java.lang.illegalstateexception: neither bindingresult nor plain target object bean name 'portallogin' available request attribute

i did come across this link, found lengthy solution , wasn't sure if iv'e write code.

i wasn't sure if can use model object @modelattribute annotations@modelattribute.

please provide me code snippets / examples can try out.

my controller method this:

    @requestmapping("/portallogin") public modelandview gotologin(model model) {     try {         system.out.println("enter gotologin************************");     } catch (exception exception) {      }     return new modelandview("portallogin", "portallogin", new loginmodel());     //return new modelandview("portallogin", model); }      @requestmapping(value="/loginfailed", method = requestmethod.get) public modelandview loginerror(modelmap model) {      //model.addattribute("secerror", "true");     //return "redirect:portallogin.html";     return new modelandview("portallogin","secerror","true");  }

[update]: work around added gotologin method logic inside loginerror method intention portallogin page. error thrown expected.

    @requestmapping(value="/loginfailed", method = requestmethod.get) public modelandview loginerror(model model) {      model.addattribute("secerror", "true");            return new modelandview("portallogin", "portallogin", new loginmodel());     }

but still know if can pass model object 1 controller method method in same controller through way.

you can try 

<c:if test="${not empty secerror == 'true'}"> <tr> <td colspan="2" align="center"><font style="color: red">your login attempt not successful, try again</font> </td></tr></c:if>

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