Tomcat release HTTP Status 500 - Internal Server Error, try many way to solve, have eldest brother c-CodePudding

The eclipse console pop-up:
严重: Servlet.service() for servlet [default] in context with path [/dingcan] threw exception [org.springframework.jdbc.UncategorizedSQLException: Hibernate operation: Cannot open connection; uncategorized SQLException for SQL [???]; SQL state [null]; error code [0]; Cannot create PoolableConnectionFactory (Unknown character set index for field '255' received from server.); nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Unknown character set index for field '255' received from server.)] with root cause
Java. SQL. SQLException: Unknown character set index for field '255' received from the server

CodePudding user response:

Is there can you teach me the eldest brother, thank you