Display hashmap values in HTML dropdown box [closed]

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Closed 5 years ago.

How to display hashmap values in an HTML dropdown box using Java?

HashMap<Integer,String> hm =new HashMap<Integer,String>();
hm.put(1,"abc");
hm.put(2,"def");
hm.put(3,"ghi");

Using the jEasyUI framework with jQuery.

回答1:

<%
    HashMap<Integer,String> hm =new HashMap<Integer,String>();
    hm.put(1,"abc");
    hm.put(2,"def");
    hm.put(3,"ghi");

     for(int i=1;i<hm.size();i++){
%>
      <option value="<%= i%>"><%= hm.get(i) %></option>
<% } %>

回答2:

You can use list returned from hm.values()

回答3:

Take a for loop and build options like below

"<option value="+hm.getKey()+">"+hm.getValue()+"</option>";

HashMap doc.

来源：https://stackoverflow.com/questions/22912859/display-hashmap-values-in-html-dropdown-box