我的项目报错 Request processing failed; nested exception is orgspringframeworkdataredisRedisConnectionFailureException Unable to connect to Redis; nested exception is iolettucecoreRedisConnectionException U

Possible causes for this error include:

1. Redis server is not running or not accessible: The error message indicates that the application is unable to connect to the Redis server at the specified IP address and port number. This could be due to the server not running or being blocked by a firewall.

2. Incorrect configuration: The application's Redis configuration may be incorrect, causing it to attempt to connect to the wrong IP address or port number.

3. Network connectivity issues: There may be network connectivity issues preventing the application from connecting to the Redis server.

To resolve this issue, you should:

1. Check that the Redis server is running and accessible from the application server.

2. Verify that the application's Redis configuration is correct.

3. Check for any network connectivity issues that may be preventing the application from connecting to the Redis server.

If you are unsure how to resolve the issue, you may need to consult with a Redis or Spring Framework expert for assistance