java - failed to show data in Struts2 dropdown -


when making select dropdownlist using struts2 tag. getting following error "the requested list key 'mylist' not resolved collection/array/map/enumeration/iterator type. example: people or people.{name}". requirement retrieve list of variable action class , display in dropdown in struts2. need make object. 

private list<string> mylist;  public string execute(){   mylist=new arraylist<string>();   mylist.add("first");   mylist.add("second");    mylist.add("third");   setname("arun");    return success; }  public list<string> getmylist() {    return mylist;  }  public void setmylist(list<string> mylist) {   this.mylist = mylist; }

jsp:

<s:select label="mylist" name="mylist" headerkey="-1"     headervalue="select value" list="mylist" />

to values in struts2 dropdown in jsp, need initialize list in action given below,

private string mylist;  // getter , setter

//logic list 

 showsearch drop=new showsearch();  service=drop.servicetype();  //value can db or manually set in list  setmylist(service);

and in jsp,

<s:select label="drop" name="mylist" headerkey="-1"     headervalue="--select--" value" list="mylist" />

note : name used list in jsp should same of initialized variable in action class.


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