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epp/test-code/websocketTest.js

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'use strict';
const WebSocket = require('ws');
const webSocketUrl = 'ws://localhost:8002/websocket/1';
global.ws = null; // WebSocket 实例对象
/**
* 启动完毕,输出配置信息
*/
console.log("Start running ...", "process.env", process.env);
function createWebSocket() {
//申请一个WebSocket对象参数是服务端地址同http协议使用http://开头一样WebSocket协议的url使用ws://开头另外安全的WebSocket协议使用wss://开头
global.ws = new WebSocket(webSocketUrl);
// 当WebSocket创建成功时触发onopen事件
global.ws.onopen = function () {
console.log("webhook is open.");
}
// 当客户端收到服务端发送的关闭连接请求时触发onclose事件
global.ws.onclose = function (e) {
console.log("webhook is close.");
console.log("未知错误被关闭,等待 1s 尝试重新建立连接...");
setTimeout(function () {
createWebSocket();
}, 1000);
}
// 如果出现连接、处理、接收、发送数据失败的时候触发onerror事件
global.ws.onerror = function (e) {
console.log(e.error);
}
// 当客户端收到服务端发来的消息时触发onmessage事件参数e.data包含server传递过来的数据
global.ws.onmessage = function (e) {
var data = JSON.parse(e.data);
console.log(data);
}
}
// 创建连接
createWebSocket();