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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                **1. WebSocket 對象** ```js //url:websocket服務地址 //protocol:子協議 var socket = new WebSocket(url, [protocol] ); ``` **2. WebSocket屬性** ```js //只讀屬性 readyState 表示連接狀態,共有如下4個值: //0 - 表示連接尚未建立 //1 - 表示連接已建立,可以進行通信 //2 - 表示連接正在進行關閉 //3 - 表示連接已經關閉或者連接不能打開 socket.readyState //只讀屬性 bufferedAmount 已被 send() 放入正在隊列中等待傳輸,但是還沒有發出的 UTF-8 文本字節數 socket.bufferedAmount ``` **3. WebSocket事件** ```js socket.onopen = () => { console.log("已經與服務器建立連接時被觸發.") } socket.onmessage = (e) => { console.log("\n獲取到服務器響應的數據時被觸發.") console.log(e.data) } socket.onclose = () => { console.log("已關閉與服務器的連接時被觸發.") } socket.onerror = (e) => { console.log("連接發生異常時被觸發.") console.log(e) } ``` **4. WebSocket方法** ```js //發送數據到服務端 socket.send(data) //關閉與服務端的連接 //code:關閉的代碼,可以自定義,但是必須在[3000, 4999]之間,可選 //reason:關閉的理由,一個字符串,可選 socket.close(code, reason) ```
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