ajax轮询请求现实 ajax并发请求阻塞介绍( 二 )

return render_template('user_list.html',users=USERS)
@app.route('/vote',methods=['POST'])
def vote():
uid = request.form.get('uid')
USERS[uid]['count'] += 1
for q in QUEQUE_DICT.values():
q.put(USERS)
return "投票成功"
@app.route('/get/vote',methods=['GET'])
def get_vote():
user_uuid = session['current_user_uuid']
q = QUEQUE_DICT[user_uuid]
ret = {'status':True,'data':None}
try:
users = q.get(timeout=5)
ret['data'] = users
except queue.Empty:
ret['status'] = False
return jsonify(ret)
if __name__ == '__main__':
app.run(host='127.0.0.1',threaded=True)
# app.run(threaded=True)
\templates\user_list.html<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
li{
cursor: pointer;
}
</style>
</head>
<body>
<ul id="userList">
{% for key,val in users.items() %}
<li uid="{{key}}">{{val.name}} ({{val.count}})</li>
{% endfor %}
</ul>
<script src=https://www.wangchuang8.com/"https://cdn.bootcss.com/jquery/3.3.0/jquery.min.js">
<script>
$(function () {
$('#userList').on('click','li',function () {
var uid = $(this).attr('uid');
$.ajax({
url:'/vote',
type:'POST',
data:{uid:uid},
success:function (arg) {
console.log(arg);
}
})
});
get_vote();
});
/*
获取投票消息
*/
function get_vote() {
$.ajax({
url:'/get/vote',
type:"GET",
dataType:'JSON',
success:function (arg) {
if(arg.status){
$('#userList').empty();
$.each(arg.data,function (k,v) {
var li = document.createElement('li');
li.setAttribute('uid',k);
li.innerText = v.name + "(" + v.count + ')' ;
$('#userList').append(li);
})
}
get_vote();
}
})
}
</script>
</body>
【ajax轮询请求现实 ajax并发请求阻塞介绍】</html>