无法从Jmeter的reg表达式提取器接收值(Cant receive value from reg expression extractor at Jmeter)

我创建了一个包含两个请求的测试计划。在第一个请求中，我收到一个JSON响应，我从中选择一个身份验证令牌。在第二个请求中，我应该使用此令牌到达页面，但我得到： Authorization: Bearer ${token}''

第一反应：

{"message":"Success","authentication_token":"UG5FzqsXNb9jnvG8dzbo","token_type":"Bearer","refresh_token":"","user_id":1,"first_name":"John","last_name":"Doe"}

正则表达式：

"authentication_token":"(.+?)"

正则表达似乎没问题。我用View Results Tree测试了它。我在第二个请求中仍然有Authorization: Bearer ${token}'' 。

I created a test plan with two requests. In the first request I receive a JSON response from which I select an auth token. In the second request I should reach a page with this token, but instead I get: Authorization: Bearer ${token}''

First response:

{"message":"Success","authentication_token":"UG5FzqsXNb9jnvG8dzbo","token_type":"Bearer","refresh_token":"","user_id":1,"first_name":"John","last_name":"Doe"}

Regular expression:

"authentication_token":"(.+?)"

The regular expression seems to be OK. I tested it with the View Results Tree. I still have Authorization: Bearer ${token}'' in the second request.