Question

在进行RESTful Eve项目时，我遇到了一些奇怪的行为

对于这一步，我必须向eve的数据库中添加一些数据。

我想使用python的请求模块对必须保存的数据进行POST

这是我要发送的内容（author是一个包含一些数据的变量）：

data = {"author_id": author.author_id,
        "orcid": author.orcid,
        "hindex": author.hindex,
        "ndocuments": author.hindex,
        "ncited_by": author.ncited_by,
        "citation_count": author.citation_count,
        "current_affiliation": author.affiliation_history[0].affiliation_id,
        "affiliation_history": [x.affiliation_id for x in author.affiliation_history],
        "subject_areas": [{"name": x[0], "frequency": x[1]} for x in author.subject_areas],
        "publication_history": [{"title": x[0], "issn": x[3]} for x in author.publication_history],
        "firstname": author.firstname,
        "lastname": author.lastname}

r = requests.post('http://localhost:5000/professors', data=data)
return r.status_code

哪个返回422。发送前，我已经打印了data包含的内容，看起来像这样

    {
   "author_id":"57190708172",
   "orcid":"",
   "hindex":"1",
   "ndocuments":"1",
   "ncited_by":"18",
   "citation_count":"18",
   "current_affiliation":"104571568",
   "affiliation_history":[
      "104571568",
      "60022084",
      "116039394",
      "100252088"
   ],
   "subject_areas":[
      {
         "name":"Biomaterials",
         "frequency":"4"
      },
      {
         "name":"Biomedical Engineering",
         "frequency":"4"
      }
   ],
   "publication_history":[
      {
         "title":"Czechoslovak Medicine",
         "issn":"01399179"
      },
      {
         "title":"Ceskoslovenska Patologie",
         "issn":"00090611"
      }
   ],
   "firstname":"Albert Vlastimil",
   "lastname":"V\u00e1lek"
}

看起来不错，并包含来自author的所有数据。现在是我无法理解的问题。使用requests.post(...)发送请求始终失败，代码为422 - Unprocessable Entity，但是从上面限制输出，并使用REST客户端发送请求则效果很好（code 201 - Created）

这里也是视频https://drive.google.com/open?id=1SwslPKMv0hn1CN8rDnOk7YrTjpr-4OZO

Answer 1

我认为您需要拨打电话，将正文设置为json，如下所示：

requests.post('http://localhost:5000/professors', json=data)

Answer 2

解决了该问题，解决方案是设置标题的内容类型，将数据作为json发送

r = requests.post('http://localhost:5000/affiliation', data=j, headers={'Content-type': 'application/json'})

哪里

j = json.dumps(data)

Python +请求+前夕：发送数据到发布失败，错误代码为422

2 个答案: