在前后端分离的项目中,使用websocket,为了区分调用后台的那个窗口,需要前后台协定传参约定,用一个参数来识别端口名称。在本次的项目中,使用
interface
作为接口的识别参数。在websocket接收数据时,根据协商的接口识别名称进行判断,保存请求回传的数据。
1. websocket服务端地址配置
websocket服务端配置地址写在index.html入口文件中。
<script>
window.config = {
Host: {
production: 'http://10.20.5.200:8088',
development: 'http://192.168.1.105:8088',
// websocket 配置地址
websocket: 'ws://192.168.1.105:8088/websocket',
test: 'http://10.20.5.20:8085'
}
}
</script>
2. Socket类的定义
class Socket {
constructor() {
this.initWebSocket()
}
// 初始化weosocket
initWebSocket() {
// ws地址
const wsuri = window.config.Host.websocket
if ('WebSocket' in window) {
this.websock = new WebSocket(wsuri)
console.log(this.websock)
} else {
alert('Not support websocket')
}
window.websocketUserInfo = {
XM: null
}
this.websock.onmessage = this.webSocketOnMessage
this.websock.onclose = this.sendMessage
this.websock.onerror = this.webSocketError
}
// 接收数据
webSocketOnMessage(e) {
// 打印接收到的数据 用于调试
if (e.data.connector === 'getFileInfo') {
console.log('---------> file info')
} else {
console.log(e.data)
}
const res = JSON.parse(e.data)
if (res.connector === 'userLogin') {
// 用户登陆后保存的用户信息
window.websocketUserInfo = res.result
// type 用于检测是否是第一次登陆 是就跳转页面
window.websocketUserInfo.type = 1
console.log('window.websocketUserInfo', window.websocketUserInfo)
} else if (res.connector === 'getUserLogin') {
// 获取登陆二维码数据 用于生成二维码
window.websockQRCode = res
console.log('window.websockQRCode', window.websockQRCode)
} else if (res.connector === 'printerLogin') {
// 终端打印机注册
window.websockClientInfo = res
console.log('window.websockClientInfo', window.websockClientInfo)
} else if (res.connector === 'getFileInfo') {
// 获取文件模板列表信息
window.websockFileList = res
console.log('window.websockFileList', window.websockFileList)
} else if (res.connector === 'alipayMoney') {
// 获取支付宝二维码
window.AliPayCode = res
console.log('获取支付宝二维码', window.AliPayCode)
} else if (res.connector === 'getAdInfo') {
// 获取轮播图列表
window.shufflingList = res
console.log('获取轮播图列表', window.shufflingList)
} else if (res.connector === 'alipayMoneyBack') {
// 获取支付回调
window.alipayMoneyBack = res
console.log('获取支付回调', window.alipayMoneyBack)
} else if (res.connector === 'printTemplate') {
// 获取文件预览数据
window.printTemplateList = res
console.log('文件预览数据', window.printTemplateList)
}
}
// 发送数据 项目主要使用
sendMessage(messageBady) { // 实际调用的方法
window.websockMessageBady = messageBady
// 若是ws开启状态
if (this.websock.readyState === this.websock.OPEN) {
this.websock.send(JSON.stringify(messageBady))
} else if (this.websock.readyState === this.websock.CONNECTING) {
// 若是 正在开启状态,则等待300毫秒
// 保存当前对象this
let that = this
setTimeout(() => {
that.websock.send(JSON.stringify(messageBady))
}, 300)
} else {
// 若未开启 ,则等待500毫秒
this.initWebSocket()
let that = this
// 保存当前对象this
setTimeout(() => {
// that.initWebSocket()
that.websock.send(JSON.stringify(messageBady))
}, 500)
}
}
// 关闭websocket
webSocketClose(e) {
const that = this
let errorTimer = setInterval(() => {
that.initWebSocket()
that.websock.send(JSON.stringify(window.websockMessageBady))
if (that.websock.readyState === that.websock.CONNECTING) {
window.clearInterval(errorTimer)
}
}, 500)
console.log('connection closed (' + e.code + ')')
}
webSocketError(e) {
console.log('connection error', e)
}
}
export default new Socket()
3. 引入和挂载Socket类
import Socket from './websocket.js'
Vue.prototype.socket = Socket
4. 使用
在请求的参数中,加入参数interface
,写入调用接口名称,其他参数为接口请求参数。
// 获取常用文件模板
getFileList() {
console.log('get filelist is called')
let fileData = {
'interface': 'getFileInfo',
'pageNum': this.pageNum,
'pageSize': this.pagesize,
'type': 2 // 2为常用表格
}
this.socket.sendMessage(fileData)
},
网友评论