Nodejs实现的一个静态服务器实例
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
*TochangethistemplateuseFile|Settings|FileTemplates.
*/
varport=3333;
varhttp=require("http");
varurl=require("url");
varfs=require("fs");
varpath=require("path");
varmime=require("./mime").types;
varconfig=require("./config");
varzlib=require("zlib");
//创建http服务端
varserver=http.createServer(function(request,response){
varobj=url.parse(request.url);
response.setHeader("Server","Node/V8");
console.log(obj);
varpathname=obj.pathname;
if(pathname.slice(-1)==="/"){
pathname=pathname+config.Welcome.file; //默认取当前默认下的index.html
}
varrealPath=path.join("assets",path.normalize(pathname.replace(/\.\./g,"")));
console.log(realPath);
varpathHandle=function(realPath){
//用fs.stat方法获取文件
fs.stat(realPath,function(err,stats){
if(err){
response.writeHead(404,"notfound",{'Content-Type':'text/plain'});
response.write("therequest"+realPath+"isnotfound");
response.end();
}else{
if(stats.isDirectory()){
}else{
varext=path.extname(realPath);
ext=ext?ext.slice(1):'unknown';
varcontentType=mime[ext]||"text/plain";
response.setHeader("Content-Type",contentType);
varlastModified=stats.mtime.toUTCString(); varifModifiedSince="If-Modified-Since".toLowerCase(); response.setHeader("Last-Modified",lastModified);
if(ext.match(config.Expires.fileMatch)){ varexpires=newDate(); 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,"NotModified"); response.end(); }else{ varraw=fs.createReadStream(realPath); varacceptEncoding=request.headers['accept-encoding']||""; varmatched=ext.match(config.Compress.match);
if(matched&&acceptEncoding.match(/\bgzip\b/)){ response.writeHead(200,"Ok",{'Content-Encoding':'gzip'}); raw.pipe(zlib.createGzip()).pipe(response); }elseif(matched&&acceptEncoding.match(/\bdeflate\b/)){ 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("httpserverruninport:"+port);