boto3“海峡”对象有没有属性“得到

Question

我下面的例子在https://devcenter.heroku.com/articles/s3-upload-python直接上传文件从客户机到S3和我想出错误

views.api.sign_s3：

def sign_s3(request): 

    S3_BUCKET = os.environ.get('S3_BUCKET') 
    file_name = request.GET.get('file_name',False) 
    file_type = request.GET.get('file_type',False) 

    s3 = boto3.client('s3') 

    presigned_post = s3.generate_presigned_post(
     Bucket = S3_BUCKET, 
     Key = file_name, 
     Fields = {"acl": "public-read", "Content-Type": file_type}, 
     Conditions = [ 
      {"acl": "public-read"}, 
      {"Content-Type": file_type} 
     ], 
     ExpiresIn = 3600 
    ) 

    return json.dumps({ 
     'data': presigned_post, 
     'url': 'https://%s.s3.amazonaws.com/%s' % (S3_BUCKET, file_name) 
    }) 

settings.py：

os.environ['S3_BUCKET'] = 'mybucketname' 
os.environ['AWS_ACCESS_KEY_ID'] = 'myaccesskey' 
os.environ['AWS_SECRET_ACCESS_KEY'] = 'mysecretaccesskey' 

HTML文件

<input id="file_input" name="video_files" type="file"> 
<!-- other html omitted --> 

<script> 
(function() { 
    document.getElementById("file_input").onchange = function(){ 
     var files = document.getElementById("file_input").files; 
     var file = files[0]; 
     if(!file){ 
      return alert("No file selected."); 
     } 
     $(files).each(function(i,file){ 
      getSignedRequest(file); 
     }); 
    }; 
})(); 

function getSignedRequest(file){ 
    var xhr = new XMLHttpRequest(); 
    console.log(file); 
    xhr.open("GET", "/api/sign_s3?file_name="+file.name+"&file_type="+file.type); 
    xhr.onreadystatechange = function(){ 
     if(xhr.readyState === 4){ 
      if(xhr.status === 200){ 
       var response = JSON.parse(xhr.responseText); 
       uploadFile(file, response.data, response.url); 
      }else{ 
       alert("Could not get signed URL."); 
      } 
     } 
    }; 
    xhr.send(); 
} 

function uploadFile(file, s3Data, url){ 
    var xhr = new XMLHttpRequest(); 
    xhr.open("POST", s3Data.url); 

    var postData = new FormData(); 
    for(key in s3Data.fields){ 
     postData.append(key, s3Data.fields[key]); 
    } 
    postData.append('file', file); 

    xhr.onreadystatechange = function() { 
     if(xhr.readyState === 4){ 
      if(xhr.status === 200 || xhr.status === 204){ 
       document.getElementById("preview").src = url; 
       document.getElementById("avatar-url").value = url; 
      }else{ 
       alert("Could not upload file."); 
      } 
     } 
    }; 
    xhr.send(postData); 
} 

</script> 

回溯：

AttributeError at /api/sign_s3/ 
'str' object has no attribute 'get' 
Request Method: GET 
Request URL: http://127.0.0.1:1337/api/sign_s3/? file_name=jam13.mp4&file_type=video/mp4 
Django Version: 1.8.5 
Exception Type: AttributeError 
Exception Value:  
'str' object has no attribute 'get' 
Exception Location: c:\Python27\lib\site-packages\django\middleware\clickjacking.py in process_response, line 31 
Python Executable: c:\Python27\python.exe 
Python Version: 2.7.3 

...

c:\Python27\lib\site-packages\django\middleware\clickjacking.py in process_response 
clickjacking protection techniques should be used if protection in those 
browsers is required. 
https://en.wikipedia.org/wiki/Clickjacking#Server_and_client 
""" 
def process_response(self, request, response): 
    # Don't set it if it's already in the response 
       if response.get('X-Frame-Options', None) is not None: ... 
     return response 
    # Don't set it if they used @xframe_options_exempt 
    if getattr(response, 'xframe_options_exempt', False): 
     return response 

人有任何想法是怎么回事？

Answer 1

我认为你回复你的观点的方式是造成麻烦。

尝试这样的事情 -

import json 
from django.http import HttpResponse, JsonResponse 

def sign_s3(request): 
    #Your View Code Here... 

    #Finally The Response (Using JsonResponse)... 
    json_object = { 
    'data': presigned_post, 
    'url': 'https://%s.s3.amazonaws.com/%s' % (S3_BUCKET, file_name) 
    } 
    return JsonResponse(json_object) 

    #Another Response Option (Using HttpResponse) 
    data = { 
    'data': presigned_post, 
    'url': 'https://%s.s3.amazonaws.com/%s' % (S3_BUCKET, file_name) 
    } 
    return HttpResponse(json.dumps(data), content_type = "application/json")