//解析路径 let urlObj = path.parse(req.url) //判断是否请求静态文件 urlObj.dir=='/static'
从磁盘读取静态文件并返回
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//根据请求的后缀名,返回文件的类型 res.setHeader("content-type",getContentType(urlObj.ext)) //从服务器磁盘中读取文件,并输出到响应对象中 let rs = fs.createReadStream('./static/'+urlObj.base) rs.pipe(res)
如何 根据后缀名返回文件类型
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function getContentType(extName){ switch(extName){ case ".jpg": return "image/jpeg"; case ".html": return "text/html;charset=utf-8"; case ".js": return "text/javascript;charset=utf-8"; case ".json": return "text/json;charset=utf-8"; case ".gif": return "image/gif"; case ".css": return "text/css" } }
//引入http模块 let http = require('http'); //创建server对象 let server = http.createServer() //引入path模块 let path = require('path') //引入文件模块 let fs = require('fs') //监听客户端发送过来的请求 //req请求对象包含了请求的相关的信息 //res对象用于响应内容,可以通过这个对象帮助我们快速实现HTTP响应 server.on('request',function(req,res){ //解析路径 let urlObj = path.parse(req.url) //识别请求的路径 //console.log(urlObj) //进入首页,返回首页的内容 if(req.url=="/"){ res.setHeader("content-type","text/html;charset=utf-8") res.end(`<link rel="stylesheet" href="./static/style.css"><h1>首页</h1><img src='./static/cxk.jpg'>`) }else if(urlObj.dir=='/static'){ res.setHeader("content-type",getContentType(urlObj.ext)) let rs = fs.createReadStream('./static/'+urlObj.base) rs.pipe(res) }else{ res.setHeader("content-type","text/html;charset=utf-8") res.end("<h1>404页面找不到</h1>") }
}) function getContentType(extName){ switch(extName){ case ".jpg": return "image/jpeg"; case ".html": return "text/html;charset=utf-8"; case ".js": return "text/javascript;charset=utf-8"; case ".json": return "text/json;charset=utf-8"; case ".gif": return "image/gif"; case ".css": return "text/css" } } //启动服务器,监听服务端口 server.listen(80,function(){ console.log("服务已启动:http:127.0.0.1") })