톰캣의 jdbc 연결 문제

Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

 

아무리 설정해도 안 된다.

 

톰캣 7.x 에서 그냥 8.5 설치해서 실행하니 된다.

 

파이썬에서 아래 오류시 3.11에서 아무리 해도 안되어 3.10으로 했더니 된다.

ImportError: No module named _sqlite3

 

결국 설정으로 안 될 것 같으면 새로운 버전으로 갈아 타라

 

https://techviewleo.com/how-to-install-python-on-centos-linux/

 

ModuleNotFoundError: No module named 'selenium'

pip3.10 install selenium

 

selenium.common.exceptions.NoSuchDriverException: Message: Unable to locate or obtain driver for chrome;

https://chromedriver.storage.googleapis.com/index.html?path=94.0.4606.41/

 

OSError: [Errno 8] Exec format error:

https://googlechromelabs.github.io/chrome-for-testing/#stable

https://edgedl.me.gvt1.com/edgedl/chrome/chrome-for-testing/116.0.5845.96/linux64/chromedriver-linux64.zip

 

cannot find Chrome binary

wget https://dl.google.com/linux/direct/ggle-chrome-stable_current_x86_64.rpm

sudo yum localinstall google-chrome-stable_current_x86_64.rpm