android上传图片到nodejs
android上传图片到nodejs
提问于 2017-01-21 08:15:29
如何从android获取镜像？我使用了console.log(request.files.image.originalFilename)；如何在nodejs服务器中读取图像。console.log(request.files.image.path)；谁能给出如何获取文件和如何读取文件的解决方案？我得到一个错误图像未定义。
var express=require("express");
var app=express();
var multer=require("multer");
var path=require("path");
var fs=require("fs");
var bodyparser=require("body-parser");
var urlencoded=bodyparser.urlencoded({extended:false});
app.use(bodyparser.json({limit: "50mb"}));
app.use(bodyparser.urlencoded({limit: "50mb", extended: true,parameterLimit:50000}));
app.post("/uploadimage",urlencoded,function(request,response)
{
console.log("I got a request");
console.log(request.files.image.originalFilename);
fs.readFile(request.files.image.path,function (err, data)
{
var dirname = "C:/Users/Kishore Baskar/WebstormProjects/Confident";
var newPath = dirname + "/imagesfolder/one.jpg";
fs.writeFile(newPath, data, function (err)
{
if (err)
{
console.log("file not written");
}
else
{
console.log("file written successfully");
}
});
});
});
app.listen(8086,function()
{
console.log("server listen at port 8086");
});回答 1
Stack Overflow用户
发布于 2017-01-21 09:03:11
import multer from 'multer';
// Where you want to store file locally
var storage = multer.diskStorage({
destination: function(req, file, cb) {
cb(null, './uploads/');
},
filename: function(req, file, cb) {
cb(null, file.originalname)
}
})
try{
var upload = multer({
storage: storage,
fileFilter: function (req, file, callback) {
var ext = path.extname(file.originalname);
if(ext !== '.png' && ext !== '.jpg' && ext !== '.gif' && ext !== '.jpeg') {
return callback(new Error('Only images are allowed'))
}
callback(null, true)
},
limits:{
fileSize: 1024 * 1024
}
});
} catch(e){
console.log("Error File in file Upload Filter",e);
}
**//storage: storage }).single('file') file is file name object like : file:fileobject from client**
router.post('/uploadImage',multer({ storage: storage }).single('file'),(req,res,next) => {
try {
// Get File Here
console.log(req.file);
} catch(e){
console.log(e)
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/41777158
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