ajax传数组

 var vehicleIdArray = new Array();
 if(undefined != nodes){
     $(nodes).each(function (ind,val){
         vehicleIdArray.push(val.id);// 把数据放入到数组里面去
     });
 }
 var vehicleName=$("#vehicleName").val();
 $.ajax({
     url : "tripReplay!tripReplay.action",
     type : "post",
     traditional:true,//必须设成 true
     data:{"vehicleIds":vehicleIdArray},//设置上传名，上传数据。
     dataType : "text",
                     success : function(msg) {
         alert(msg);
     }
 });

 private List vehicleIds;//必须写成和上传名一样，写好get 与 set 方法 ，也可以写  String[] vehicleIds

 public void tripReplay() throws Exception{
     HttpServletResponse response = super.getResponse();
     PrintWriter out = response.getWriter();

     String tripJson = tripReplayService.getTripInfo(vehicleIds, startTime, endTime,startDay,endDay);
     out.print(tripJson);
     out.flush();
     out.close();
 }