Node实现简单的表单+图片上传+路由

var http = require("http");var querystring = require("querystring");var formidable = require(‘formidable‘);var util = require("util");var sd = require("silly-datetime");var fs = require("fs");var path = require("path");//创建服务器创建服务器var server = http.createServer(function (req, res) { ???if(req.url == "/dopost" && req.method.toLowerCase() == "post") { ???????//Create a new incoming form. ???????var form = new formidable.IncomingForm(); ???????form.uploadDir = "./uploads"; ???????//执行里面的回调函数的时候，表单已经全部接收完毕了 ???????form.parse(req, function (err, fields, files) { ???????????if(err) { ???????????????throw ?err; ???????????} ???????????console.log(util.inspect({fields:fields,files:files})); ???????????//时间,使用了第三方模块，silly-datetime ???????????var ttt = sd.format(new Date(), "YYYMMDDHHmmss"); ???????????var ran = parseInt(Math.random() * 89999 + 10000); ???????????var extname = path.extname(files.tupian.name); ???????????//执行改名 ???????????var oldpath = __dirname + "/" + files.tupian.path; ???????????//新的路径由三个部分组成：时间戳，随机数，拓展名 ???????????var newpath = __dirname + "/uploads/" + ttt + ran + extname; ???????????fs.rename(oldpath,newpath,function (err) { ???????????????if(err) { ???????????????????throw Error("改名失败") ???????????????} ???????????????res.writeHead(200, {"Content-type":"text/plain"}); ???????????????res.end("success"); ???????????}); ???????}); ???}else if(req.url == "/") { ???????//呈现form.html ???????fs.readFile("./form.html", function (err,data) { ???????????res.writeHead(200, {"content-type":"text/html"}); ???????????res.end(data); ???????}) ???}else { ???????res.writeHead(404,{"content-type":"text/html"}); ???????res.end("404"); ???}});server.listen(3000,"127.0.0.1");