List<Foo> as form backing object using Spring 3 MVC, correct syntax?

Question

I want to do something like this, where Foo is a class with one String field name, and getter/setter:

<form:form id="frmFoo" modelAttribute="foos">    <c:forEach items="${foos}" var="foo">      <form:input path="${foo.name}" type="text"/> 

And then submit the complete list of Foos with updated names?

My controller looks like this:

@RequestMapping(value = "/FOO", method = RequestMethod.POST) public String getSendEmail(List<Foo> foos, Model model) {     // ... } 

Answer 1

Maybe this answersyour question:

CONTROLLER :

@Controller("/") public class FooController{      //returns the ModelAttribute fooListWrapper with the view fooForm     @RequestMapping(value = "/FOO", method = RequestMethod.GET)     public String getFooForm(Model model) {         FooListWrapper fooListWrapper = new FooListWrapper();         fooListWrapper.add(new Foo());         fooListWrapper.add(new Foo());          //add as many FOO you need          model.addAttribute("fooListWrapper", fooListWrapper);          return "fooForm";     }      @RequestMapping(value = "/FOO", method = RequestMethod.POST)     public String postFooList(@ModelAttribute("fooListWrapper")FooListWrapper fooListWrapper, Model model) {          //...........     }  } 

FOO LIST WRAPPER :

public class FooListWrapper {     private List<Foo> fooList;      public FooListWrapper() {          this.fooList = new ArrayList<Foo>();     }      public List<Foo> getFooList() {         return fooList;     }      public void setFooList(List<Foo> fooList) {         this.fooList = fooList;     }      public void add(Foo foo) {         this.fooList.add(foo);     } } 

FOO CLASS :

public class Foo {     private String name;      public Foo() {     }      public String getName() {         return name;     }      public void setName(String name) {         this.name = name;     } } 

JSP VIEW (name = fooForm):

<c:url var="fooUrl" value="/FOO"/> <form:form id="frmFoo" action="${fooUrl}" method="POST" modelAttribute="fooListWrapper">       <c:forEach items="${fooListWrapper.fooList}" varStatus="i">            <form:input path="fooList[${i.index}].name" type="text"/>     </c:forEach>       <button>submit</button> </form:form>