PowerShell：无法解码 JSON object：期望属性名称用双引号括起来
[英]PowerShell: Failed to decode JSON object: Expecting property name enclosed in double quotes
问题描述
I was trying to run my first command with POST method:
我试图用 POST 方法运行我的第一个命令：
curl --header "Content-Type: application/json" --request POST --data '{"flower":"1,2,3,7"}' http://localhost:5000/iris_post
But I got an error:但我得到一个错误：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>400 Bad Request</title>
<h1>Bad Request</h1>
<p>Failed to decode JSON object: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)</p>
My code for POST method is very simple:我的 POST 方法代码非常简单：
from flask import Flask, request
app = Flask(__name__)
@app.route('/iris_post', methods=['POST'])
def add_message():
content = request.get_json()
return str(content)
Where is the problem?问题出在哪里？
UPD :更新：
It seems that I have a problem with my PowerShell.看来我的 PowerShell 有问题。 PowerShell doesn't have curl by default but I fixed it with Remove-item alias:curl . PowerShell 默认没有curl但我用Remove-item alias:curl修复了它。 I don't know why but it leads to the error above.我不知道为什么，但这会导致上面的错误。 The same command works fine in Git Bash.相同的命令在 Git Bash 中工作正常。
2 个解决方案
解决方案1
0 2020-06-26 21:02:51
I've run your code and it worked smoothly here.我已经运行了您的代码，并且在这里运行顺利。 In order to reproduce your error, I've replaced single quote argument by double quote in the POST data:为了重现您的错误，我在 POST 数据中用双引号替换了单引号参数：
POST --data "{"flower":"1,2,3,7"}"
This way the error appeared here also.这样错误也出现在这里。 But using single quote, as you typed, it worked as expected.但是在您键入时使用单引号，它按预期工作。 So it seems a typo error.所以这似乎是一个拼写错误。
解决方案2
0 2020-06-26 21:28:21
Have you try the Invoke-RestMethod?您是否尝试过 Invoke-RestMethod？
$url = 'http://localhost:5000/iris_post'
data = '{"flower":"1,2,3,7"}'
Invoke-RestMethod $url -Method Post -Body $data -ContentType 'application/x-www-form-urlencoded'
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