参考cnodejs.org上面的静态服务器例子,写了下面的一个nodejs静态服务器例子,里面包含cache,压缩,贴代码如下:
/** * 静态文件服务器测试例子 * User: xuwm * Date: 13-5-17 * Time: 上午8:38 * To change this template use File | Settings | File Templates. */ var port=3333; var http = require("http"); var url = require("url"); var fs = require("fs"); var path = require("path"); var mime = require("./mime").types; var config = require("./config"); var zlib = require("zlib"); //创建http服务端 var server=http.createServer(function(request,response){ var obj= url.parse(request.url); response.setHeader("Server","Node/V8"); console.log(obj); var pathname=obj.pathname; if(pathname.slice(-1)==="/"){ pathname=pathname+config.Welcome.file; //默认取当前默认下的index.html } var realPath = path.join("assets", path.normalize(pathname.replace(/../g, ""))); console.log(realPath) ; var pathHandle=function(realPath){ //用fs.stat方法获取文件 fs.stat(realPath,function(err,stats){ if(err){ response.writeHead(404,"not found",{'Content-Type':'text/plain'}); response.write("the request "+realPath+" is not found"); response.end(); }else{ if(stats.isDirectory()){ }else{ var ext = path.extname(realPath); ext = ext ? ext.slice(1) : 'unknown'; var contentType = mime[ext] || "text/plain"; response.setHeader("Content-Type", contentType);var lastModified = stats.mtime.toUTCString(); var ifModifiedSince = "If-Modified-Since".toLowerCase(); response.setHeader("Last-Modified", lastModified);
if (ext.match(config.Expires.fileMatch)) { var expires = new Date(); expires.setTime(expires.getTime() + config.Expires.maxAge * 1000); response.setHeader("Expires", expires.toUTCString()); response.setHeader("Cache-Control", "max-age=" + config.Expires.maxAge); }
if (request.headers[ifModifiedSince] && lastModified == request.headers[ifModifiedSince]) { console.log("从浏览器cache里取") response.writeHead(304, "Not Modified"); response.end(); } else { var raw = fs.createReadStream(realPath); var acceptEncoding = request.headers['accept-encoding'] || ""; var matched = ext.match(config.Compress.match);
if (matched && acceptEncoding.match(/bgzipb/)) { response.writeHead(200, "Ok", {'Content-Encoding': 'gzip'}); raw.pipe(zlib.createGzip()).pipe(response); } else if (matched && acceptEncoding.match(/bdeflateb/)) { response.writeHead(200, "Ok", {'Content-Encoding': 'deflate'}); raw.pipe(zlib.createDeflate()).pipe(response); } else { response.writeHead(200, "Ok"); raw.pipe(response); } } } } });
} pathHandle(realPath); }); server.listen(port); console.log("http server run in port:"+port);
首先需要在JS文件里创建一个assets的文件夹,里面放入你要浏览的静态文件,比如,index.html,demo.js等。
运行方式为:在命令行里切换到上面的JS的文件目录,然后输入 node JS文件名
浏览器内输入http://localhost:3333/就会看到效果。
--补上上面代码里缺少的两个模块
mime.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" };
config.js
exports.Expires = { fileMatch: /^(gif|png|jpg|js|css)$/ig, maxAge: 60 * 60 * 24 * 365 };exports.Compress = { match: /css|js|html/ig };
exports.Welcome = { file: "index.html" };