node--2016-08-09

最新推荐文章于 2023-05-18 14:58:19 发布

原创最新推荐文章于 2023-05-18 14:58:19 发布 · 695 阅读

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#url #http协议 #工程师 #服务器

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本文介绍如何使用Node.js创建一个简单的静态资源服务器，包括HTTP请求响应处理、路由获取及读取静态文件等内容。

回顾

HTTP协议
Request对象
Reponse对象
Nodejs创建服务器模块

Nodejs创建一个静态资源服务器

http模块 const http = require(‘http’);
url模块 const url = require(‘url’);
fs模块 const fs = require(‘fs’);

创建一个服务器

var port = 8000;
var ip = '127.0.0.1';
var http = require('http); 

var server = http.createServer(function(request,reponse){

		reponse.writeHead(200,{'Content-Type':'text/plain'});
		reponse.write('hellow Nodejs');
		reponse.end();
		
}).listen(port,ip);

实现路由，获取URL

var url = require('url');
var pathname = url.parse(request.url).pathname;

var server = http.createServer(function(request,reponse){

	var pathname = url.parse(request.url).pathname;
	reponse.write(pathname);
	reponse.end(); 
	
});

读取静态文件

var fs = require('fs');
var path = require('path'); 
var sever = http.createServer(function(request,reponse){
var pathname = url.parse(request.url)pathname;
var realPath = 'assets' + pathname; 

path.exists(realPath,function(exists){
		if(!esists){
			reponse.write(404,{'Content-Type':'texty/plain'});
			reponse.write('This request url' + pathname + 'not exists in server');
			reponse.end();
		}else{
		
			fs.readFile(realPath, "binary", function(err, file) {
            if (err) {
                response.writeHead(500, {‘Content-Type‘: ‘text/plain‘});
                response.end(err); 
                
            } else {
                response.writeHead(200, {‘Content-Type‘: ‘text/html‘});
                response.write(file, "binary");
                response.end();
		}
	});
});