Vue配置代理

npm i axios

资料命令启动node server1和server2

运行server1.js:http://localhost:5000/students

const express = require('express')
const app = express()

app.use((request,response,next)=>{
	console.log('有人请求服务器1了');
	// console.log('请求来自于',request.get('Host'));
	// console.log('请求的地址',request.url);
	next()
})

app.get('/students',(request,response)=>{
	const students = [
		{id:'001',name:'tom',age:18},
		{id:'002',name:'jerry',age:19},
		{id:'003',name:'tony',age:120},
	]
	response.send(students)
})

app.listen(5000,(err)=>{
	if(!err) console.log('服务器1启动成功了,请求学生信息地址为：http://localhost:5000/students');
})

运行server2.js:http://localhost:5001/cars

const express = require('express')
const app = express()

app.use((request,response,next)=>{
	console.log('有人请求服务器2了');
	next()
})

app.get('/cars',(request,response)=>{
	const cars = [
		{id:'001',name:'奔驰',price:199},
		{id:'002',name:'马自达',price:109},
		{id:'003',name:'捷达',price:120},
	]
	response.send(cars)
})

app.listen(5001,(err)=>{
	if(!err) console.log('服务器2启动成功了,请求汽车信息地址为：http://localhost:5001/cars');
})

vue-cli配置代理方式一（不完美） 

vue.config.js

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
   transpileDependencies: true
})

module.exports = {
   lintOnSave: false ,//关闭语法检查
   // 开启代理服务器
   devServer:{
      proxy:'http://localhost:5000'
   }
}

src/App.vue

 

vue-cli配置代理方式二（不完美） 

vue.config.js

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
   transpileDependencies: true
})

module.exports = {
   lintOnSave: false ,//关闭语法检查
   // 开启代理服务器一（不完美）
   // devServer:{
   //    proxy:'http://localhost:5000'
   // }

   devServer:{
      proxy:{
         '/api1':{// 匹配所有以'/api1开头的请求路径
            target:'http://localhost:5000',//代理目标的基础路径
            pathRewrite:{'^/api1':''}, // 代理往后端服务器的请求去掉/api1前缀
            ws:true, //WebSocket
            changeOrigin:true,
         },
         '/api2':{// 匹配所有以'/api2开头的请求路径
            target:'http://localhost:5001',//代理目标的基础路径
            pathRewrite:{'^/api2':''}, // 代理往后端服务器的请求去掉/api2前缀
            ws:true, //WebSocket
            changeOrigin:true,
         }
      }
   }
}
/* 
   changeOrigin设置为true时，服务器收到的请求头中的host为: localhost:5000 说谎
   changeOrigin设置为false时，服务器收到的请求头中的host为: localhost:8080 实话实说
*/

src/App.vue