群聊的前台主要代码:
{%block content%} <!--<p class=‘text-success h3‘>测试版本,每天凌晨4:00清水,enjoy it~~:-)</p>--> <ul> {%for i in content[19*int(num)-19:19*int(num)]%} <li class=‘text-info‘><a href=‘/user/{{i[1]}}‘ class=‘text-success h4‘>【{{i[1]}}】</a> ({{i[3]}}) : {{i[2]}}</li> {%end%} </ul> <ul class=‘pagination‘> {%for i in range(1,pages+1)%} <li {%if int(num)==i%}class=‘active‘{%end%}><a href=‘/chat/{{i}}‘>{{i}}</a></li> {%end%} </ul> </br> </br> <form action=‘/chat/1‘ method=‘post‘ class=‘well form-search‘> <label class=‘sr-only‘>发表新贴</label><input type=‘text‘ name=‘topic‘ placeholder=‘发表新贴...‘/> <button type=‘submit‘ class=‘btn btn-danger‘>发送</button> </form> {%end%}
class chatHandler(tornado.web.RequestHandler): def get(self,num): #num第几页 name=self.get_cookie(‘hackerName‘) chats=showChat() n=len(chats) if n%20==0: pages=n//20 #pages总页数 else: pages=n//20+1 self.render(‘chat.html‘,cookieName=name,content=chats,pages=pages,num=num) def post(self,num): name=self.get_cookie(‘hackerName‘) if not name: return #在javascript 中判断是否已登录 newTopic=self.get_argument(‘topic‘) insertChat(name,newTopic) self.redirect(‘/chat/1‘)
def showChat(): c.execute(‘select * from chat‘) tmp=c.fetchall() return tmp[::-1] #逆序,最新贴放在最上面
def insertChat(name,content): now=getTime() c.execute(‘insert into chat(name,content,time) values("‘+name+‘","‘+content+‘","‘+now+‘")‘) db.commit()
群聊内容是按时间逆序排的,最新的在最上面,满20条就增加一页,默认的群聊首页就是/chat/1,即第一页。这里实现的只是基本功能,之后还要加上实时刷新ajax,新消息提示,都是前端的东西,在基本功能全部实现后加上去。
转载请注明:转自http://blog.csdn.net/littlethunder/article/details/25560003
【从0开始Tornado建站】群聊,布布扣,bubuko.com
原文地址:http://blog.csdn.net/littlethunder/article/details/25560003