'use strict'; const http = require('http'); const url = require('url'); const path = require('path'); const fs = require('fs');

const root = path.resolve(process.argv[2] || '.') console.log('Static root dir: ' + root);

/**

• [返回http]
• @param {[type]} request [description]
• @param {[type]} response [description]
• @param {[type]} pathname [description]
• @return {[type]} [description] */ const resolveHttpServer = (request, response, pathname) => { let filepath = path.join(root, pathname); fs.stat(filepath, (err, stats) => {

   if (!err && stats.isFile()) {
       console.log('200 ' + request.url);
       response.writeHead(200);
       fs.createReadStream(filepath).pipe(response);
   } else {
       console.log('404 ' + request.url);
       response.writeHead(404);
       response.end('404 Not Found');
   }
  

  }) }

let searchCount = 0; let fileArr = ['/index.html', '/default.html', '/demo.html']; /**

• [依次递归查找fileArr中文件是否存在]
• @param {[type]} request [description]
• @param {[type]} response [description]
• @return {[type]} [description] */ const searchFile = (request, response) => { if (!fileArr[searchCount]) return resolveHttpServer(request, response, '/'); fs.readFile(fileArr[searchCount].substr(1), (err, data) => {

   if (err) {
       searchFile(request, response, ++ searchCount);
   } else {
       resolveHttpServer(request, response, fileArr[searchCount]);
   }
  

  }); }

/**

• [创建HTTP服务]
• @param {[type]} (request, response [description]
• @return {[type]} [description] */ const server = http.createServer((request, response) => { let pathname = url.parse(request.url).pathname; pathname = pathname && pathname != '/' ? resolveHttpServer(request, response, pathname) : searchFile(request, response);

})

server.listen(8080); console.log('Server is running at http://127.0.0.1:8080/');