post请求
form.html
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>Document</title></head><body> ???<form action="http://127.0.0.1:3000/dopost" method="post" enctype="multipart/form-data"> ???????<p> ???????????姓名:<input type="text" name="name"> ???????</p> ???????<p> ???????????性别: ???????????<input type="radio" name="sex" value="男">男 ???????????<input type="radio" name="sex" value="女">女 ???????</p> ???????<p> ???????????爱好 ???????????<input type="checkbox" name="hobby" value="睡觉">睡觉 ???????????<input type="checkbox" name="hobby" value="看电影">看电影 ???????????<input type="checkbox" name="hobby" value="吃饭">吃饭 ???????</p> ???????<p> ???????????上传 ???????????<input type="file" name="tupian"> ???????</p> ???????<p> ???????????<input type="submit"> ???????</p> ???</form></body></html>
enctype="multipart/form-data"是使用formidable第三方库需要添加的
post.js
var http = require("http");var querystring = require("querystring");var server = http.createServer(function(req,res){ ???if(req.url == "/dopost" && req.method.toLowerCase()=="post"){ ???????var alldata = ‘‘; ???????//下面是post接收数据的一个公式 ???????//node为了极致,他是一小段一小段接收的 ???????//接受了一小段，可能就给别人去服务了。防止一个过大的表单阻塞了整个进程 ???????req.addListener("data",function(chunk){ ???????????alldata +=chunk; ???????????console.log(chunk); ???????}); ???????//全部传输完毕 ???????req.addListener("end",function(chunk){ ???????????console.log(alldata.toString()); ???????????var datastring = alldata.toString(); ???????????var dataObj =querystring.parse(datastring); ???????????console.log(dataObj); ???????????console.log(dataObj.name); ???????????console.log(dataObj.sex); ???????????res.end("success"); ???????}); ???}});server.listen(3000,"127.0.0.1");node post.js
这里上传图片是真的上传了,默认是放在一个c盘的一个地方,我们可以修改上传图片的路径并且改名的
post1.js
var formidable = require(‘formidable‘);var http = require("http");var fs = require("fs");var sd = require("silly-datetime");var querystring = require("querystring");var path = require("path");var server = http.createServer(function(req,res){ ???if (req.url == ‘/dopost‘ && req.method.toLowerCase() == ‘post‘) { ???// parse a file upload ???var form = new formidable.IncomingForm(); ???form.uploadDir = "./upload"; ???form.parse(req, function(err, fields, files) { ?????// 所有的文本域,单选框都在fields; ?????// 所有的文件域,都在files; ?????var ttt = sd.format(new Date(),‘YYYYMMDDHHmmss‘); ?????var ran = parseInt(Math.random()*89999+1000); ?????var extname = path.extname(files.tupian.name); ?????var oldpath =__dirname+"/"+files.tupian.path; ?????var newpath = __dirname + "/upload/"+ ttt + ran + extname; ?????fs.rename(oldpath,newpath,function(err){ ?????????if(err){ ?????????????throw Error("改名失败") ?????????}; ???????????console.log(fields); ?????????console.log(files); ?????????res.writeHead(200, {‘content-type‘: ‘text/plain‘}); ?????????res.end("success"); ?????}); ???}); ?}});server.listen(3000,"127.0.0.1");node post1.js
然后你可以在你同级目录的upload文件夹里查看到你上传的图片
node.js初识10
原文地址：https://www.cnblogs.com/ldlx-mars/p/8529014.html