nodejs运行前端项目

有时候我们会创建一些小项目，只有几个简单html，没有引入一些前端框架，也没有使用webpack，那我们要如何让代码在我们本地跑起来呢？

当然是有很多种方法，IIS、wampserver等等好多都可以用，这里只是说道纯粹用node就把项目跑起来，配置简单。

前提是你要安装好了nodejs，安装方法，去百度一下大把。

现在假设你的文件目录如下

• index
  • templates
    • index.html
  • static
    • js
      • index.js
    • css　　
      • index.css

现在需要在index同级目录新建两个文件server.js:

var PORT = 8089;//监听的端口

var http = require('http');
var url=require('url');
var fs=require('fs');
var help=require('./help').types;//
var path=require('path');

var server = http.createServer(function (request, response) {
    var pathname = url.parse(request.url).pathname;
    var realPath = path.join("index", pathname);    //这里设置自己的文件名称;
    var ext = path.extname(realPath);
    ext = ext ? ext.slice(1) : 'unknown';
    fs.exists(realPath, function (exists) {
        if (!exists) {
            response.writeHead(404, {
                'Content-Type': 'text/plain'
            });

            response.write("This request URL " + pathname + " was not found on this server.");
            response.end();
        } else {
            fs.readFile(realPath, "binary", function (err, file) {
                if (err) {
                    response.writeHead(500, {
                        'Content-Type': 'text/plain'
                    });
                    response.end(err);
                } else {
                    var contentType = help[ext] || "text/plain";
                    response.writeHead(200, {
                        'Content-Type': contentType
                    });
                    response.write(file, "binary");
                    response.end();
                }
            });
        }
    });
});
server.listen(PORT);
console.log("Server runing at port: " + PORT + ".");

help.js

 exports.types = {
   "css": "text/css",
   "gif": "image/gif",
   "html": "text/html",
   "ico": "image/x-icon",
   "jpeg": "image/jpeg",
   "jpg": "image/jpeg",
   "js": "text/javascript",
   "json": "application/json",
   "pdf": "application/pdf",
   "png": "image/png",
   "svg": "image/svg+xml",
   "swf": "application/x-shockwave-flash",
   "tiff": "image/tiff",
   "txt": "text/plain",
   "wav": "audio/x-wav",
   "wma": "audio/x-ms-wma",
   "wmv": "video/x-ms-wmv",
   "xml": "text/xml"
 };

然后再index文件夹的同级目录下运行：

node http.js 

浏览器中输入：

http://localhost:8089/templates/index.html

就可以打开你的项目了，只是没有热更新，要手动刷新，但起码跑起来了