let websocket: WebSocket;
/** websocket测试 */
function connectWebsocket() {if (typeof WebSocket === "undefined") {console.log("您的浏览器不支持WebSocket");return;}// let ip = window.location.hostname + ":8080";let ip = "10.192.30.161:8080";let url = `ws://${ip}/websocket/download`;// 打开一个websocketwebsocket = new WebSocket(url);// 建立连接websocket.onopen = () => {console.log("websocket已连接");// websocket.send("ping");};// 客户端接收服务端返回的数据websocket.onmessage = (evt) => {let data = evt.dataconsole.log("websocket返回的数据：", data);if (data.length > 0) {handleSearch();}};// 发生错误时websocket.onerror = (evt) => {console.log("websocket错误：", evt);};// 关闭连接websocket.onclose = (evt) => {console.log("websocket关闭：", evt);};
}
connectWebsocket();// 监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
window.onbeforeunload = function () {websocket.close();
}