Django 文件上传到后台的三种方式

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="{% url 'clashphone:Upload' %}" method="post" enctype="multipart/form-data">
        <input type="file" name="fafafa">
        <input type="submit">
        {% csrf_token %}
    </form>
</body>
</html>

Django 后端：

class Upload(View):

    def get(self, request):
        return render(request, 'clashphone/test.html',  {
            'mould': os.path.join(BASE_DIR, 'media', 'commen'),
            'MEDIA_URL': MEDIA_URL}
                      )

    def post(self, request):
        obj = request.FILES.get('fafafa', '1')
        print(obj.name)
        f = open(os.path.join(BASE_DIR, 'media', 'image', obj.name), 'wb')
        for chunk in obj.chunks():
            f.write(chunk)
        f.close()
        # return render(request, 'clashphone/test.html')
        return HttpResponse('OK')

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

Django 文件上传到后台的三种方式

猜你喜欢