Node.js 处理POST文件数据节点
我的NodeJS服务器正试图使用和存储通过POST请求获取的文件，但我不知道如何通过req变量访问传递给它的文件。看起来post本身正在执行，并且请求中有一些数据，但是我需要作为变量访问post文件，我该怎么做 我的代码： 节点： 反应：Node.js 处理POST文件数据节点,node.js,Node.js,我的NodeJS服务器正试图使用和存储通过POST请求获取的文件，但我不知道如何通过req变量访问传递给它的文件。看起来post本身正在执行，并且请求中有一些数据，但是我需要作为变量访问post文件，我该怎么做 我的代码： 节点： 反应： ... class RyanForm extends React.Component { send() { const method = "POST"; const body = new FormData(this.form); c
...
class RyanForm extends React.Component {
send() {
const method = "POST";
const body = new FormData(this.form);
console.log('sending info: ' + body);
axios.post(URLs.imgUpload, body, { headers: { 'Content-Type': 'multipart/form-data' } })
}
render() {
return (
<div>
<h1>I'm a form.</h1>
<form ref={el => (this.form = el)}>
<label>file:</label>
<input type="file" name="im-a-file" />
</form>
<button onClick={() => this.send()}>Send</button>
<p>Submit me to see what I send to the server.</p>
</div>
);
}
}
var express = require('express')
var fs = require('fs');
var http = require('http');
var bigInt = require("big-integer");
var fs = require('fs');
var cmd = require('node-cmd');
var qs = require('querystring');
var util = require('util');
const fileUpload = require('express-fileupload');
var app = express();
@dkaramazov我更新了软件包的问题，在output@dkaramazovreq.body未定义，这就是body解析器支持的格式吗？是的，通常我使用JSON，但我相信它支持其他格式。您可能需要：app.usebodyParser.urlencoded{extended:false}；app.usebodyParser.json；如果您纯粹对文件数据感兴趣，您可能会想使用Multer。抱歉，我注意到您没有包括我认为是先决条件的主体解析器。
We have a compiled contract!
Cuzzo's app running on port 8003!
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'access-control-allow-origin': '*',
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{ 'x-powered-by': 'X-Powered-By',
'access-control-allow-origin': 'Access-Control-Allow-Origin',
'access-control-allow-headers': 'Access-Control-Allow-Headers' },
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route:
Route {
path: '/imgUpload',
stack: [ [Object] ],
methods: { post: true } } }
var express = require('express')
var fs = require('fs');
var http = require('http');
var bigInt = require("big-integer");
var fs = require('fs');
var cmd = require('node-cmd');
var qs = require('querystring');
var util = require('util');
const fileUpload = require('express-fileupload');
var app = express();
var multer = require('multer');
var storage = multer.diskStorage({
destination: function(req, file, callback) {
var fileDest = path.join('../uploads/');
if (!fs.existsSync(fileDest)) {
mkdirp(fileDest, function(err) {
if (err) {
logger.error(err);
callback(err, false);
} else {
callback(null, '../uploads/');
}
});
} else {
callback(null, '../uploads/');
}
},
filename: function(req, file, callback) {
callback(null, file.fieldname + '.' + file.originalname.split('.')[1]);
}
});
var upload = multer({
storage: storage,
fileFilter: function(req, file, callback) {
// To reject this file pass `false`, like so:
var sw = 0;
for (var i = 0; i < config.validMimeTypes.length; i++) {
if (file.mimetype === config.validMimeTypes[i]) {
sw = 1;
break;
}
}
if (sw === 0) {
logger.error('Not allowed file type sent');
// return callback(new Error('Only video files are allowed!'));
return callback('Only ... files are allowed!', false);
}
// To accept the file pass `true`, like so:
callback(null, true);
},
limits: {
fileSize: config.maxUploadSize
}
});
app.post('/upload', upload.any(), router.uploader);