<script>
<c:forEach var="obj" items="${mulst} "> 
alert("${obj.屬性}"); 
</c:forEach> 
</script>

1. $.ajax({  
2.         type: 'post',  
3.         url: "maintain_findRoomByBuildingId.shtml",  
4.         cache: false
   ,  
5.         data: {"buildingId":buildingId},  
6.         dataType: 'json',  
7.         success: function(data){  
8.             jQuery.each(data.roomList, function(i,item){  
9.                 alert(item.id+","+item.name);  
10.             });  
11.         },  
12.         error: function(){  
13.             return;  
14.         }  
15.     });