spring - th:if="${#fields.hasErrors()}" causes Exception evaluating SpringEL expression -


i'm trying validation on 1 field of form guys can see :

<div id ="editmodal" class="modal fade" role="dialog">             <form class="modal-dialog" th:action="@{/edit}" th:object="${person1}" method="post">                 <div class="modal-content">                     <div class="modal-header">                         <button type="button" class="close" data-dismiss="modal">&times;</button>                     </div>                         <div class="modal-body">                         <input type="hidden" id="edit-modal-person-id" name="id" value=""/>                         <input type="text" placeholder="name" id="edit-modal-person-name" name="name"/>                         <p th:if="${#fields.haserrors('name')}" th:errors="*{name}" th:class="'error'">something</p>                         <div>                             <a class="btn btn-default pull-right" id="phonenumberedit">edit phone number</a>                         </div>                     </div>                     <div class="modal-footer">                         <button type="submit" id="submitedit" class="btn btn-default" >submit</button>                         <button type="button" class = "btn btn-default" data-dismiss="modal">cancel</button>                     </div>                 </div>             </form>         </div>

the attribute th:if="${#fields.haserrors('name')}" causes 500 error me

my controller :

@requestmapping(value = "/edit", method = requestmethod.post)     public string editperson(@valid @modelattribute(value="person1") personrequest person, bindingresult result) {         if(result.haserrors()) {              return "redirect:all";         }         else {             personservice.update(person.getid(), person.getname());             return "redirect:all";         }     }

my entity :

public class personrequest {      @notnull     private long id;      @notempty     @name     private string name;      public long getid() {         return id;     }     public void setid(long id) {         this.id = id;     }     public string getname() {         return name;     }     public void setname(string name) {         this.name = name;     }     public personrequest() {         super();     } }

the console return following error: 

java.lang.illegalstateexception: neither bindingresult nor plain target object bean name 'person1' available request attribute.

but think doesnt have because if remove p tag runs normally.

the problem make redirect, (you make "redirect:all"). because of redirect, not pass object person1 error "java.lang.illegalstateexception: neither bindingresult nor plain target object bean name 'person1' available request attribute".

if want post code of /all requestmapping have

probably want this

@requestmapping(value = "/edit", method = requestmethod.post)     public string editperson(@valid @modelattribute(value="person1") personrequest person, bindingresult result) {         if(result.haserrors()) {              return "edit";//change name of html page want go         }         else {             //probably here return in page persons              personservice.update(person.getid(), person.getname());             return "redirect:all";         }     }

Comments

Post a Comment

Popular posts from this blog

angular - Ionic slides - dynamically add slides before and after -

hi i'm using ngfor create set of 3 slides while starting in middle i'm guaranteed able slide left or right on start. when slide right can simple listen reachedend , push slide array i'm looping. but have problem adding slide beginning. if same above , use e.g. array.unshift() or spread add item beginning, view think it's on position 0 , snaps view new slide. the code below work animates slide change index 1. slide = [0,1,2] //example loop slidechanged(event) { if(this.slides.isbeginning()){ this.slide = [this.slide[0]-1, ...this.slide]; this.slides.update(); this.slides.slideto(1) } } <ion-slides [initialslide]="1" (ionslidedidchange)="slidechanged($event)"> <ion-slide *ngfor="let item of slide"> <h1>slide {{item}}</h1> </ion-slide> </ion-slides> any appreciated! you can using ionslidenextend , ionslideprevend events slides . please
Read more

minify - Minimizing css files -

i want know how css files can minimized. currently, using external sites css minifier compress css files. however, after removing whitespaces, comments, etc, file sizes reduced 10-15%. how frameworks bootstrap manage make minimized versions kilobytes. as example, css is: body { background-color: #ff0; } the reduction goes 28 bytes 22 bytes other css files have lot more characters still smaller this. actually minifying code means it's remove thing code white space characters new line characters comments block delimiters it reduces amount of code has transferred on web , speed site load fastly.but unreadable format.
Read more

Add a dynamic header in angular 2 http provider -

i have http interceptor built via tutorial https://scotch.io/@kashyapmukkamala/using-http-interceptor-with-angular2 the problem need have dynamic header changes automatically once changes 'mode' in app. service able tell interceptor change header, or have interceptor pull header (which string)from service each request. able throwing away patch method, call http.patch('new header string') set header string. call in service controls 'mode' setting. wondering if there way interceptor pull recent value service each request or if can add method http provider via interceptor? i've tried call service in interceptor each request returns undefined. because creating new instance of service or copying value before service fired , loaded/changed data. i don't want pass header string every http provider call because defeats purpose of having interceptor, id able set once changes or have provider fetch service before makes request. tl;dr : need add autom
Read more