Created
January 23, 2021 17:47
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websocket to http
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Title</title> | |
| <script> | |
| // 事件对象 | |
| let eventObj = {}; | |
| let pubsub = { | |
| sub: (key, fn) => { | |
| eventObj[key] = fn | |
| }, | |
| pub: (key) => { | |
| if (eventObj[key]) { | |
| eventObj[key]() | |
| } | |
| } | |
| } | |
| // 超时时间 | |
| const timeoutInterval = 30 * 1000; | |
| let errorMap = { | |
| parameterError: { | |
| code: 501, | |
| message: '参数不正确' | |
| }, | |
| timeout: { | |
| code: 502, | |
| message: '请求超时' | |
| }, | |
| netException: { | |
| code: 503, | |
| message: '断网异常' | |
| } | |
| } | |
| let wsRequest = (option) => new Promise((resolve, reject) => { | |
| if (!option.context) { | |
| reject(errorMap.parameterError) | |
| } | |
| setTimeout(() => { | |
| reject(errorMap.timeout) | |
| delete eventObj[option.context]; | |
| }, timeoutInterval) | |
| pubsub.sub(option.context, (data) => { | |
| resolve(data) | |
| delete eventObj[option.context]; | |
| }) | |
| pubsub.sub('disconnect', () => { | |
| reject(errorMap.netException) | |
| }) | |
| }) | |
| let ws = new WebSocket('ws://127.0.0.1:4649/Echo?name=pengbo'); | |
| // ws.onopen = (e) => { | |
| // } | |
| let onCloseOrError = () => { | |
| eventObj = {} | |
| pubsub.pub('disconnect') | |
| }; | |
| ws.onclose = onCloseOrError | |
| ws.onerror = onCloseOrError | |
| ws.onmessage = (rsp) => { | |
| let data = JSON.parse(rsp.data); | |
| if (data.msgType === 'rsp') { | |
| eventObj[data.context] && eventObj[data.context](data); | |
| } | |
| } | |
| (async function () { | |
| // 测试发送ws请求 | |
| try { | |
| let rsp = await Promise.all([ | |
| wsRequest({ | |
| context: '123', | |
| msgType: 'req', | |
| data: 'data123' | |
| }) | |
| , | |
| wsRequest({ | |
| context: '124', | |
| msgType: 'req', | |
| data: 'data124' | |
| }) | |
| ]) | |
| console.log(rsp) | |
| debugger | |
| } catch (e) { | |
| console.log(e) | |
| } finally { | |
| } | |
| })() | |
| </script> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |
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