Invalid AES key length: 33 bytes

Project scenario:

提示：这里简述项目相关背景：

springboot+linux

---

Problem Description

提示：这里描述项目中遇到的问题：

AES encryption is performed on file upload and AES decryption is performed when reading. The key exists in a custom file. After the local code is written, everything is normal, but after deploying to the server, it reportsInvalid AES key length: 33 bytes

Cause Analysis:

Tip: Fill in the analysis of the question here:

Now that this problem has been reported, first confirm whether there is a problem with the key. After outputting the content, it is found that it will automatically wrap

solution:

Tip: Fill in the specific solution to the problem here:

The obtained key content is formatted replaceAll("\n", "")and then observed, everything is normal.