node代理解决跨域
const express = require('express')
const iconv = require('iconv-lite');
const port = 8001
const app = express()
app.get('/', (req, res) => {
res.send('Hello World!')
})
const cors = function(req, res, next){
console.log('LOGGED')
// get 方法会自动添加，其他方法需要手动添加
res.set({
"Access-Control-Allow-Origin":"*",
"Access-Control-Allow-Methods":"*",
// 'Content-Type':"text/html;charset=utf-8"
})
next()
}
app.use(cors)
// ------------------- 代理获取日历信息
function onProxyReq(proxyReq, req, res) {
console.log('onProxyReq',req.method)
proxyReq.method = 'GET'
console.log('onProxyReq',proxyReq.method)
}
function onProxyRes(proxyRes, req, res) {
console.log('onProxyRes',proxyRes.headers)
res.set('Content-Type',"text/html;charset=utf-8")
let d = null
proxyRes.on('data',data => {
// node 不支持 gbk编码 借助iconv转译
// 解码
const t = iconv.decode(data,'GBK')
// 编码
const r = iconv.encode(t,'utf8')
d +=r
})
proxyRes.on('end',()=>{
res.send(d)
})
}
const httpProxyMiddleware = require('http-proxy-middleware')
const proxyConfig = {
target: '',
changeOrigin: true,
pathRewrite: {
'^/calendar' : '/', // 重写请求，
},
onProxyReq, // 处理请求
selfHandleResponse:true, // 手动处理响应
onProxyRes // 处理响应函数
}
const proxy = httpProxyMiddleware.createProxyMiddleware(proxyConfig)
app.use('/calendar',proxy)
// ('/calendar',(req,res)=>{
// ('Hello Calendar!')
// })
app.listen(port,()=>{
console.log(`服务器运行在 localhost:${port}/`)
})