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nodejs 接收上傳的圖片

2021-5-27 前端達人

1.nodejs接收上傳的圖片主要是使用formidable模塊，服務器是使用的express搭建。

引入formidable

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

攔截請求，設置formidable的常規項

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;//保留后綴 form.maxFieldsSize = 2 * 1024 * 1024;

});

解析圖片，重命名圖片名稱，返回給前端

 //處理圖片  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 - 1]; var name = ''; for (var i = 0; i < nameArray.length - 1; 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})
    })

完整代碼如下


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("8083",function () {
    console.log("服務啟動")
}); //攔截請求 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;//保留后綴 form.maxFieldsSize = 2 * 1024 * 1024; //處理圖片  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 - 1]; var name = ''; for (var i = 0; i < nameArray.length - 1; 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})
    })
});