ajax 长轮询

未完成，因为需要换成webscoket来做，该ajax长轮询有待完善

function poll(){$.ajax({type:"POST",url:"ajax",async:true,data:{"receiverType":"single","receiverId":"${receiverId}","senderId":"${senderId}",},success:function(data){$("#content").append("<p><span>${receiverId}:"+data+"</span></p>");console.log(data);}});setTimeout(poll,5000);}$(function(){poll();}

　　

 

@RequestMapping("/ajax")@ResponseBodypublic String ajaxMessage(String receiverType,String receiverId,String senderId) throws InterruptedException {System.out.println("receiverType = " + receiverType);System.out.println("receiverId = " + receiverId);System.out.println("senderId = " + senderId);String content = null;int i =0;boolean end = false;while (!end) {if(messages!=null) {System.out.println(messages.size()+"====================================");i++;for(Message m : messages){if(m.getReceiver().getType().equals(receiverType) &&m.getFromUserName().equals(receiverId)&& m.getReceiver().getId().equals(senderId)){System.out.println("temp = " + m.getContent());return  m.getContent();}}if(i==20){end = true;}}Thread.sleep(5000);}return content;}