A static server instance implemented by Nodejs and a nodejs static instance

A static server instance implemented by Nodejs and a nodejs static instance

Refer to the static server example at cnodejs.org and write the following nodejs static server example, which contains cache, compression, and the following code:
Copy codeThe Code is as follows:
/**
* Static file server test example
* User: xuwm
* Date: 13-5-17
* Time: AM
* 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 ");
// Create an http server
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; // retrieve the index.html file from the current directory.
}
Var realPath = path. join ("assets", path. normalize (pathname. replace (/\. \./g ,"")));
Console. log (realPath );
Var pathHandle = function (realPath ){
// Use the fs. stat method to obtain the file
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 ("retrieve from browser cache ")
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 (/\ bgzip \ B /)){
Response. writeHead (200, "OK", {'content-encoding': 'gzip '});
Raw. pipe (zlib. createGzip (). pipe (response );
} Else if (matched & acceptEncoding. match (/\ bdeflate \ B /)){
Response. writeHead (200, "OK", {'content-encoding': 'release '});
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 );

First, create an assets folder in the js file, and add the static files you want to view, such as index.html and demo. js.

Run the following command: switch to the JS file directory in the command line, and enter the node JS file name.

Enter http: // localhost: 3333/in the browser to see the effect.

-- Add the two modules missing in the above Code

Mime. js

Copy codeThe Code is as follows:
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

Copy codeThe Code is as follows:
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"
};