day8-0808
form表单同时上传文件和数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>form</title>
</head>
<body>
<div id="content">
<form id="uploadForm" action="http://localhost:3006" method="POST">
<input type="file" name="file" id="input-file" value="选择你要提交的文件""><span>文件大小限制在1MB！</span>
<input type="text" name="namefield" id="input-name" value="666" style="display: none;">
<input type="submit" value="提交"" id="btn-submit">
</form>
</div>
<script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script>
// ajax form submit
var upload_form = $("#uploadForm")
upload_form.submit(function () {
var form_data = new FormData()
form_data.append('ID', $('#input-name').val())
form_data.append('file',$('#input-file')[0].files[0])
console.log(form_data)
console.log($('#input-file')[0].files[0])
$.ajax({
url: 'http://localhost:3006',
type: 'post',
data: form_data,
cache: false,
processData: false,
contentType: false,
success: function (res) {},
error: function (e) {}
})
})
</script>
</body>
</html>
Koa作为sever
const Koa = require('koa');
const os = require('os');
const path = require('path');
const koaBody = require('koa-body');
const app = new Koa();
const main = async function (ctx) {
console.log(ctx.request.body)
const tmpdir = os.tmpdir();
const filePaths = [];
const files = ctx.request.body.files || {};
console.log(files)
for (let key in files) {
const file = files[key];
const filePath = path.join(tmpdir, file.name);
const reader = fs.createReadStream(file.path);
const writer = fs.createWriteStream(filePath);
reader.pipe(writer);
filePaths.push(filePath);
filePaths.push(files[key])
}
ctx.body = filePaths;
};
app.use(koaBody({ multipart: true }));
app.use(main)
app.listen(3006, () => {
console.log('server running ...')
})
