nodejs

/** * Created by linyunfu on 2017/4/13. */var http=require('http'),    url=require('url'),    fs=require('fs');var server1=http.createServer(function(req,res){    //解析客户端请求地址中文件目录名称以及数据内容    var urlObj=url.parse(req.url,true),        pathname=urlObj["pathname"],        query=urlObj["query"],        reg=/\.(HTML|JS|CSS|JSON|TXT|ICO|JPG|PNG|GIF|BMP)/i;    if(reg.test(pathname)){         var suffix=reg.exec(pathname[1].toUpperCase());    //     根据后缀名，获取到当前文件的类型        var suffixMIME='text/plain';        switch(suffix){            case "HTML":                suffixMIME="text/html";                break;            case "CSS":                suffixMIME="text/css";                break;            case "JS":                suffixMIME="text/javascript";                break;            case "JSON":                suffixMIME="application/json";                break;            case "ICO":                suffixMIME="application/octet-stream";                break;        }        //都是字符串格式的        try{            var confile=fs.readFileSync("."+pathname,"utf-8");            //重写响应头信息：告诉客户端浏览器，我返回的内容的格式            res.writeHead(200,{'content-type':suffixMIME+'charset=utf-8;'});            res.end(confile);        }        catch (e){            res.writeHead(404,{'content-type':'text/plain;charset=utf-8;'});            res.end('request loser')        }    }    //如果客户端请求的资源文件不存在（防止服务终止）    try{        var con=fs.readFileSync("."+pathname,'utf-8');        res.end(con);    }catch (e){        res.end("request file is not find");    }});server1.listen(1234,function(){    console.log("1234");});