nodejs搭建简易文件服务

第一种

let express = require('express');
let app = express();
let path = require('path')
let fs = require('fs');
let mime = require('mime')

//设置跨域访问
app.all('*', (req, res, next) => {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "X-Requested-With");
  res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
  res.header("X-Powered-By",' 3.2.1')
  res.header("Content-Type", "application/json;charset=utf-8");
  next();
});



// app.use('/static',express.static('static'));
app.use("/",(req, res)=>{

  // console.log(req.path);
  // 请求路径
  let pathname = req.path

  // 处理 / /index 都是读取 /index.html
  if(pathname == '/' || pathname == '/index'){pathname = '/index.html'}

  // 路径拼接 将用户的请求路径转换为实际的服务器硬盘路径
  let readPath = path.join(__dirname  + pathname)
  // console.log(readPath)

  // 根据路径返回资源的类型
  let zy = mime.getType(readPath)

  res.setHeader('Content-type',zy+";charset=utf-8")

  fs.readFile(readPath, (err, data)=>{
    if(err){
      res.end("404")
      return
    }
    res.end(data)
  })
})
app.listen(4000,()=>{
  console.log('http://localhost:4000')
})

我的目录结构

image.png

第二种
静态目录

image.png