返回静态资源的封装

let http = require("http");
let ss = require("./StaticServer.js");

// 1.创建一个服务器实例对象
let server = http.createServer();
// 2.注册请求监听
server.on("request", function (req, res) {
    let rootPath = "E:\\Users\\30315\\Desktop\\abc";
    ss.StaticServer(req, res, rootPath);
});
// 3.指定监听的端口
server.listen(3000);

StaticServer.js 内容如下所示

let path = require("path");
let fs = require("fs");
let mime = require("./mime.json");

function readFile(req, res, rootPath) {
    let filePath = path.join(rootPath, req.url);
    let extName = path.extname(filePath);
    let type = mime[extName];
    if (type.startsWith("text")) {
        type += "; charset=utf-8;";
    }
    res.writeHead(200, {
        "Content-Type": type
    });
    fs.readFile(filePath, function (err, content) {
        if (err) {
            res.end("Server Error");
        }
        res.end(content);
    });
}

exports.StaticServer = readFile;