spring - 400 the request sent by the client was syntactically incorrect -

i have gone through many examples of nature , proposed solutions site, none of solutions provided thereon apply problem. believe error message, 400, shows when information sent controller mulformed. spent last 2 days cross referrencing project worked on in past, works, cannot pick problem.

@requestmapping(value = {"/", "/home"}, method = requestmethod.get)     public string homepage(modelmap model) {        model.addattribute("user", getprincipal());     catalog catalog = catalogservice.getcatalogbycategory(catalog.catalogcategory.all);      model.addattribute("catalog", catalog);     return "welcome"; } 

this sends data jstl spring form on jsp follows:

<form:form method="post" modelattribute="catalog">         <form:hidden path="id"/>         <form:hidden path="name"/>         <form:hidden path="category"/>         <form:hidden path="orderitems"/>           <div id="products" class="row list-group">             <c:foreach var="orderitem" items="${catalog.orderitems}">                  <div class="item  col-xs-4 col-lg-4">                     <div class="thumbnail">                         <img class="group list-group-image" src="http://placehold.it/400x250/000/fff" alt=""/>                          <div class="caption">                             <h4 class="group inner list-group-item-heading">                                     ${orderitem.name}</h4>                              <p class="group inner list-group-item-text">                                     ${orderitem.description}                             </p>                              <div class="row">                                 <div class="col-xs-12 col-md-6">                                     <p class="lead">                                         r ${orderitem.price}</p>                                 </div>                                 <div class="col-xs-12 col-md-6">                                     <label for="${orderitem.id}" class="btn btn-primary">add cart <input                                             type="checkbox" id="${orderitem.id}" name="orderitem.addedtocart"                                             class="badgebox"><span class="badge">&check;</span></label>                                 </div>                             </div>                         </div>                     </div>                 </div>             </c:foreach>         </div>          <div class="row">             <div class="form-group">                 <div class="col-sm-12 pull-right">                 </div>                 <div class="col-sm-2 pull-right">                      <input type="submit"                            class="btn btn-default btn-block btn-primary"                            value="next" name="action" formmethod="post"                            formaction="confirmlist"/>                  </div>             </div>         </div>     </form:form>` 

at point submit form following listener in controller:

@requestmapping(value = "/confirmlist", method = requestmethod.post) public string confirmlist(@modelattribute catalog catalog, @modelattribute     string numberofitemsadded) {       list<orderitem> selecteditems = new arraylist<orderitem>();     (orderitem orderitem : catalog.getorderitems()) {         if (orderitem.isaddedtocart()) {             selecteditems.add(orderitem);         }     }     //model.addattribute("numberofitemsadded", selecteditems.size());     return "welcome"; } 

that's it, execution flow not reach controller. exhausting bug because not understand doing wrong here. thank in advance

edit:

catalog.java

 @entity  @table(name="catalogs")  public class catalog{   private long id; //generated value using hibernate ...  private string name; //column annotated @column  private string category;// column annotated @column  private list<orderitem> orderitems;// 1 many mapping    //getters , setters here } 

i tested code , got http 400 too. thing browser sends not match whith controller method confirmlist expects:

this form data saw in chrome's network tab:

id:1 name:the catalog category:category orderitems:[com.eej.ssba2.model.test.catalog.orderitem@82ea8a, com.eej.ssba2.model.test.catalog.orderitem@f441ae, com.eej.ssba2.model.test.catalog.orderitem@40a13, com.eej.ssba2.model.test.catalog.orderitem@1316c95, com.eej.ssba2.model.test.catalog.orderitem@1cfc05a, com.eej.ssba2.model.test.catalog.orderitem@5d725c, com.eej.ssba2.model.test.catalog.orderitem@ff32b9, com.eej.ssba2.model.test.catalog.orderitem@5b49a4, com.eej.ssba2.model.test.catalog.orderitem@13faf31, com.eej.ssba2.model.test.catalog.orderitem@6d64d] orderitem.addedtocart:on orderitem.addedtocart:on orderitem.addedtocart:on orderitem.addedtocart:on action:next 

but controller cannot understand this, orderitems shows tostring() of each orderitem instance , addedtocart not binded orderitem of orderitems list.

you must modify jsp way:

<form:form method="post" modelattribute="catalog">         <form:hidden path="id"/>         <form:hidden path="name"/>         <form:hidden path="category"/>         <!-- form:hidden path="orderitems"/-->           <div id="products" class="row list-group">             <c:foreach var="orderitem" items="${catalog.orderitems}" varstatus="status">                  <div class="item  col-xs-4 col-lg-4">                     <div class="thumbnail">                         <img class="group list-group-image" src="http://placehold.it/400x250/000/fff" alt=""/>                          <div class="caption">                             <h4 class="group inner list-group-item-heading">                                     ${orderitem.name}</h4>                                     <form:hidden path="orderitems[${status.index}].name" />                             <p class="group inner list-group-item-text">                                     ${orderitem.description}                                     <form:hidden path="orderitems[${status.index}].description" />                             </p>                              <div class="row">                                 <div class="col-xs-12 col-md-6">                                     <p class="lead">                                         r ${orderitem.price}</p>                                         <form:hidden path="orderitems[${status.index}].price" />                                 </div>                                 <div class="col-xs-12 col-md-6">                                     <label for="${orderitem.id}" class="btn btn-primary">add cart <input                                             type="checkbox" id="${orderitem.id}" name="catalog.orderitems[${status.index}].addedtocart"                                             class="badgebox"><span class="badge">&check;</span></label>                                 </div>                             </div>                         </div>                     </div>                 </div>             </c:foreach>         </div>          <div class="row">             <div class="form-group">                 <div class="col-sm-12 pull-right">                 </div>                 <div class="col-sm-2 pull-right">                      <input type="submit"                            class="btn btn-default btn-block btn-primary"                            value="next" name="action" formmethod="post"                            formaction="confirmlist"/>                  </div>             </div>         </div>     </form:form> 

if so, see message changes in chrome's network tab (or browser using). form data right now:

id:1 name:the catalog category:category orderitems[0].name:orderitemname#0 orderitems[0].description:orderitemdesc#0 orderitems[0].price:0.0 orderitems[1].name:orderitemname#1 orderitems[1].description:orderitemdesc#1 orderitems[1].price:0.43645913001303904 orderitems[2].name:orderitemname#2 orderitems[2].description:orderitemdesc#2 orderitems[2].price:1.7151992716801088 orderitems[3].name:orderitemname#3 orderitems[3].description:orderitemdesc#3 orderitems[3].price:1.303683806806788 orderitems[4].name:orderitemname#4 orderitems[4].description:orderitemdesc#4 orderitems[4].price:2.507039003743686 orderitems[5].name:orderitemname#5 orderitems[5].description:orderitemdesc#5 orderitems[5].price:3.173744751378154 orderitems[6].name:orderitemname#6 orderitems[6].description:orderitemdesc#6 orderitems[6].price:3.183771167856446 catalog.orderitems[6].addedtocart:on orderitems[7].name:orderitemname#7 orderitems[7].description:orderitemdesc#7 orderitems[7].price:6.73370053587355 catalog.orderitems[7].addedtocart:on orderitems[8].name:orderitemname#8 orderitems[8].description:orderitemdesc#8 orderitems[8].price:2.0266022634803216 orderitems[9].name:orderitemname#9 orderitems[9].description:orderitemdesc#9 orderitems[9].price:5.251986962977732 catalog.orderitems[9].addedtocart:on action:next 

and see returns http 200 request in fact reaches controller. delete @modelattribute in controller method too, have been suggested to:

    @requestmapping(value = "/confirmlist", method = requestmethod.post)     public string confirmlist(catalog catalog, string numberofitemsadded) {          list<orderitem> selecteditems = new arraylist<orderitem>();         (orderitem orderitem : catalog.getorderitems()) {             if (orderitem.isaddedtocart()) {                 selecteditems.add(orderitem);             }         }         //model.addattribute("numberofitemsadded", selecteditems.size());         return "catalog";     }