flask之REDIS+Dplayer消息队列实现电影弹幕

一、安装Redis

官网下载地址：https://redis.io/download

Redis  centos安装过程：

yum -y install gcc gcc-c++
wget http://download.redis.io/releases/redis-4.0.10.tar.gz
tar -zxvf redis-4.0.10.tar.gz
cd redis-4.0.10
make && make install
./utils/install_server.sh
#测试redis是否运行
redis-cli
> ping #返回pong表示成功

安装flask-redis

#清华源
pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple flask-redis

 

二、安装开源插件Dplayer

Dplayer官网地址：http://dplayer.js.org/#/    (有时候会打不开哦)

Dplayer github地址:https://github.com/MoePlayer/DPlayer

#html引入css/js
<link rel="stylesheet" href="{{ url_for('static',filename='dplayer/dist/Dplayer.min.css') }}" >
<script src="{{ url_for('static',filename='dplayer/dist/DPlayer.min.js') }}"></script>
#引用到页面
<div id="dplayer" style="height: 500px;width: 774px"></div>
#弹幕和视频接口
 <script>
        var dp1 = new DPlayer({
            container: document.getElementById('dplayer'),
            video: {
                url: "{{ url_for('static',filename='uploads/'+movie.url) }}"
            },
            danmaku: {
                id: '{{ movie.id }}',
                api: "/tm/"
            }
        });
 </script>

#Python返回弹幕的处理方法
@home.route("/tm/v3/",methods=["GET","POST"])
def tm():
    import json
    if request.method=="GET":
        #获取弹幕消息队列
        mid = request.args.get("id")
        key="movie"+str(mid)
        if rd.llen(key):
            msgs=rd.lrange(key,0,2999)
            res={
                "code":0,
                "data":[json.loads(v) for v in msgs]
            }
        else:
            res={
                "code":1,
                "danmaku":[]
            }
        resp=json.dumps(res)
    if request.method=="POST":
        #添加弹幕
        data=json.loads(request.get_data())
        msg= {
        "__v": 0,
        "_id": datetime.datetime.now().strftime("%Y%m%d%H%M%S") + uuid.uuid4().hex,
        "author": data["author"],
        "time": data["time"],
        "text": data["text"],
        "color": data["color"],
        "type": data["type"],
        "ip": request.remote_addr,
        "player": data["id"]
        }
        res = {
            "code": 0,
            "danmaku":msg
        }
        resp=json.dumps(res)
        msg=[data["time"],data["type"],data["color"],data["author"],data["text"]]
        rd.lpush("movie"+str(data["id"]),json.dumps(msg))
    return Response(resp,mimetype="application/json")

 

播放效果：