hashmap - Spring mvc form:select path is custom map in model attribute -


how bind map property of model , send selected value controller?

i able populate drop down on submitting form getting error 400 - bad request.

mymodel.java:

public class mymodel{     private map<mysubmodel, string> submodel = new hashmap<mysubmodel, string>();     private submodel submodelsearched; }

submodel.java:

public class submodel{     public string id;     public string name; }

jsp:

<form:form action="/mysearch" modelattribute="mymodel" method="post">     <form:select path="submodelsearched">         <form:options items="${mymodel.submodel}/>     </form:select> ..... </form:form>


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