Persist radio checked value in Thymeleaf Spring -


when searching, if select given field search within , submit, our choice forgotten. how modify view template keep previous search field selected when displaying results?

i have read many other questions , thymeleaf documentation here have not found suitable answer yet.

one can hard code string (like employer) following:

search.html snippet

<span th:each="column : ${columns}">   <input     type="radio"     name="searchtype"     th:id="${column.key}"     th:value="${column.key}"     th:checked="${column.key == 'employer'}"/>      <label th:for="${column.key}" th:text="${column.value}"></label>  </span>

searchcontroller.html snippet

@requestmapping(value = "") public string search(model model) {     model.addattribute("columns", columnchoices);     return "search"; }

how can persist user selected radio value upon post in thymeleaf spring? (and default first, value on get)

http://www.thymeleaf.org/doc/tutorials/3.0/thymeleafspring.html#creating-a-form

command object.

public class search {     // default "employer"     private string type = "employer";      public string gettype() {         return type;     }      public void settype(string type) {         this.type = type;     } }

controller

@getmapping public string search(model model) {     model.addattribute("columns", columnchoices);     model.addattribute("search", new search());     return "search"; }  @postmapping public string search(@modelattribute search search) {     // search's attributes match form selections. }

with search command object, radio buttons should this:

<form th:object="${search}">     <th:block th:each="column: ${columns}">         <input type="radio" th:value="${column.key}" th:id="${column.key}" th:field="*{type}" />         <label th:for="${column.key}" th:text="${column.value}" />     </th:block> </form>

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