nodejs 接收上传的图片

时间：2021-12-25 14:40:17

1.nodejs接收上传的图片主要是使用formidable模块，服务器是使用的express搭建。

引入formidable

var formidable = require('./node_modules/formidable');

拦截请求，设置formidable的常规项

app.post("/image",function (req,res) {

    var form = new formidable.IncomingForm();

    form.encoding = 'utf-8';

    form.uploadDir = path.join(__dirname + "/../page/upload");

    form.keepExtensions = true;//保留后缀

    form.maxFieldsSize =  *  * ;

});

解析图片，重命名图片名称，返回给前端

 //处理图片

    form.parse(req, function (err, fields, files){

        console.log(files.the_file);

        var filename = files.the_file.name

        var nameArray = filename.split('.');

        var type = nameArray[nameArray.length - ];

        var name = '';

        for (var i = ; i < nameArray.length - ; i++) {

            name = name + nameArray[i];

        }

        var date = new Date();

        var time = '_' + date.getFullYear() + "_" + date.getMonth() + "_" + date.getDay() + "_" + date.getHours() + "_" + date.getMinutes();

        var avatarName = name + time + '.' + type;

        var newPath = form.uploadDir + "/" + avatarName;

        fs.renameSync(files.the_file.path, newPath);  //重命名

        res.send({data:"/upload/"+avatarName})

    })

完整代码如下

var path = require("path");

var fs = require("fs");

var express =require("./node_modules/express");

var app=express();

var bodyParser = require('./node_modules/body-parser');

var formidable = require('./node_modules/formidable');

app.use(bodyParser.json());

app.use(bodyParser.urlencoded({extended: true}));

app.use(express.static(__dirname + "./../page"));

app.listen("",function () {

    console.log("服务启动")

});

//拦截请求

app.post("/image",function (req,res) {

    var form = new formidable.IncomingForm();

    form.encoding = 'utf-8';

    form.uploadDir = path.join(__dirname + "/../page/upload");

    form.keepExtensions = true;//保留后缀

    form.maxFieldsSize =  *  * ;

    //处理图片

    form.parse(req, function (err, fields, files){

        console.log(files.the_file);

        var filename = files.the_file.name

        var nameArray = filename.split('.');

        var type = nameArray[nameArray.length - ];

        var name = '';

        for (var i = ; i < nameArray.length - ; i++) {

            name = name + nameArray[i];

        }

        var date = new Date();

        var time = '_' + date.getFullYear() + "_" + date.getMonth() + "_" + date.getDay() + "_" + date.getHours() + "_" + date.getMinutes();

        var avatarName = name + time + '.' + type;

        var newPath = form.uploadDir + "/" + avatarName;

        fs.renameSync(files.the_file.path, newPath);  //重命名

        res.send({data:"/upload/"+avatarName})

    })

});

完整代码

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