根据值设置select的选中项

$(‘.selector‘).attr("checked", true);

            <s:iterator value="jobSelect" id="jobLink2">
                  <s:iterator value="jobLink2" id="job2">
                  var arr = $(‘.selector‘);
                  var a = ${job2.id};
                  $(‘.selector‘).each(function(){

                     if($(this).val()== ${job2.id}){
                       $(this).attr("checked", true);
                     }
               });
                 </s:iterator>
            </s:iterator>