方式一：
通过form表单提交到后台
前段：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/upload/" method="post" enctype="multipart/form-data">
<input type="file" name="fafafa">
<input type="submit">
</form>
</body>
</html>
Django 后端：
def upload(request):
if request.method == 'POST':# 获取对象
obj = request.FILES.get('fafafa')
import os
# 上传文件的文件名
print(obj.name) f = open(os.path.join(BASE_DIR, 'static', 'pic', obj.name), 'wb')
for chunk in obj.chunks():
f.write(chunk)
f.close()
return HttpResponse('OK')
return render(request, 'upload/upload.html')
方式二：
通过ajax提交
前段
<div>
<input type="file" name="file" id="file_upload">
<input type="button" value="上传" onclick="FileUpload()">
</div>
JS:
<script src="/static/js/jquery-3.2.1.min.js"></script>
<script>
function FileUpload() {
var form_data = new FormData();
var file_info =$( '#file_upload')[0].files[0];
form_data.append('file',file_info);
//if(file_info==undefined)暂且不许要判断是否有附件
//alert('你没有选择任何文件');
//return false
$.ajax({
url:'/upload_ajax/',
type:'POST',
data: form_data,
processData: false, // tell jquery not to process the data
contentType: false, // tell jquery not to set contentType
success: function(callback) {
console.log('ok')
}
});
}</script>
Django 后端：
def upload_ajax(request):
if request.method == 'POST':
file_obj = request.FILES.get('file')
import os
f = open(os.path.join(BASE_DIR, 'static', 'pic', file_obj.name), 'wb')
print(file_obj,type(file_obj))
for chunk in file_obj.chunks():
f.write(chunk)
f.close()
print('11111')
return HttpResponse('OK')
注意：
前台发送ajax请求时：
processData: false, // tell jquery not to process the data
contentType: false, // tell jquery not to set contentType
必须设置
方式三：
通过iframe标签提交
前段：
<div>
<form id="my_form" name="form" action="/upload_iframe/" method="POST" enctype="multipart/form-data">
<input type="text" name="user">
<input type="password" name="password">
<input type="file" name="file">
<input type="button" value="upload" onclick="UploadFile()">
</form>
<iframe id='my_iframe' name='my_iframe' src="" class="hide"></iframe>
</div>
JS:
function UploadFile() {
document.getElementById('my_iframe').onload = Testt;
document.getElementById('my_form').target = 'my_iframe';
document.getElementById('my_form').submit();
}
function Testt(ths){
var t = $("#my_iframe").contents().find("body").text();
console.log(t);
}
Django 后端：
def upload_iframe(request):
if request.method == 'POST':
print(request.POST.get('user', None))
print(request.POST.get('password', None))
file_obj = request.FILES.get('file')
import os
f = open(os.path.join(BASE_DIR, 'static', 'pic', file_obj.name), 'wb')
print(file_obj,type(file_obj))
for chunk in file_obj.chunks():
f.write(chunk)
f.close()
print('11111')
return HttpResponse('OK')
以上是文件上传的三种方式，在Tornado种也可以使用。
扩展：
在前段提交的时候 可以存在 checkbox 标签， 在Django中对于这种标签在后台获取值时用：
request.POST.getlist('favor', None) checkbox
其它
request.POST.get('favor', None) checkbox