uniapp如何发送websocket请求

方法1：

onLoad() {
        uni.connectSocket({
            url: 'ws://127.0.0.1:8000/ws/stat/realTimeStat/',
            success: (res) => {
                console.log('connect success', res);
            }
        });
        uni.onSocketOpen(function (res) {
            console.log('WebSocket连接已打开！');
            uni.sendSocketMessage({
                data: JSON.stringify({'username': 'realTimeStat', 'msg': 'stat'}),
                success: (res) => {
                    console.log('send success', res);
                }
            });
        });
        uni.onSocketMessage(function (res) {
            console.log('收到服务器内容：' + res.data);
        })
        uni.onSocketError(function (res) {
            console.log('WebSocket连接打开失败，请检查！');
        });
        uni.onSocketClose(function (res) {
            console.log('WebSocket 已关闭！');
        });
    },

方法2

onLoad() {
        const socketTask = uni.connectSocket({
            url: 'ws://127.0.0.1:8000/ws/stat/realTimeStat/',
            success: (res) => {
                console.log('connect success', res);
            }
        });
        socketTask.onOpen(function (res) {
            console.log('WebSocket连接已打开！');
            socketTask.send({
                data: JSON.stringify({'username': 'realTimeStat', 'msg': 'stat'}),
                success: (res) => {
                    console.log('send success', res);
                }
            });
        });
        socketTask.onMessage(function (res) {
            console.log('收到服务器内容：' + res.data);
        })
        socketTask.onError(function (res) {
            console.log('WebSocket连接打开失败，请检查！');
        });
        socketTask.onClose(function (res) {
            console.log('WebSocket 已关闭！');
        });
    },