bootstrap下拉框动态赋值方法

 <script type="text/javascript">
 /** 
  */ 

  window.onload = function () {
   showsmsselect(); 
  }

  function showsmsselect() { 
   $.ajax({ 
    url : "${pageContext.request.contextPath}/user/finduserRealName.do", //所需要的列表接口地址 
    type : "get", 
    dataType : "json", 
    success : function(result) { 
      var h = ""; 
      $.each(result, function(key, value) {

       h += "<option value='" + value.id + "'>" + value.realname //下拉框序言的循环数据
       + "</option>"; 
      }); 
      $("#addrole").append(h);//append 添加进去并展示 
      $("#addrole").on( 
        "change", 
        function(a, b, c) { 
         $("#contentID").val( 
           $("#addrole option:selected").val());

         $("#contentName").val( 
           $("#addrole option:selected").text());

        }) 
    } 
   }); 
  } 

 </script>