使用formidable处理文件上传-优快云博客

下载第三方插件：

在www.npmjs.com中下载formidable模块

表单代码：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="http://127.0.0.1:81/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>图片：<input type="file" name="tupian"></p>
        <p><input type="submit" value="提交"></p>
    </form>
</body>
</html>

加载第三方代码接收文件数据：

var http = require("http");
var formidable = require('formidable');
var fs = require("fs");
var sd = require("silly-datetime");
var path = require("path");

//创建服务器
http.createServer(function (req, res) {
    //如果你访问地址是这个，并且请求类型是post
    if(req.url == "/dopost" && req.method.toLowerCase() == "post"){
        var alldata = "";
        // parse a file upload
        var form = new formidable.IncomingForm();
        form.uploadDir = "./uploads";
        //执行里面的回调函数的时候，表单已经全部接受完毕了
        form.parse(req, function(err, fields, files) {
            if(err){
                throw err;
            }
            //时间
            var ttt = sd.format(new Date(), 'YYYYMMDDHHmmss');
            var ran = parseInt(Math.random() * 89999 + 10000);
            var extname = path.extname(files.tupian.name);
            var oldpath = __dirname + "/" + files.tupian.path;
            var newpath = __dirname + "/uploads/" + ttt + ran + extname;

            //改名
            fs.rename(oldpath, newpath, function () {
                if(err){
                    throw Error("改名失败");
                }
                //所有的文本域、单选框，都在fields存放。所有的文本域都在files存放
                res.writeHead(200, {'content-type': 'text/plain; charset=utf-8'});
                res.end("成功");
            });
        });
    } else if(req.url == "/"){
        fs.readFile("./aa.html", function (err, data) {
            res.writeHead(200, {'content-type': 'text/html; charset=utf-8'});
            res.end(data);
        });
    } else {
        res.writeHead(404, {'content-type': 'text/html; charset=utf-8'});
        res.end("路径错了");
    }
}).listen(81, "127.0.0.1");