myeclipse链接mysql数据库报错

Unknown system variable 'tx_read_only'
Could not retrieve transation read-only status server
--- The error occurred in sqlmaps/user/userSQL.xml. --- The error occurred while applying a parameter map. --- Check the user.login-InlineParameterMap. --- Check the statement (query failed). --- Cause: java.sql.SQLException: Could not retrieve transation read-only status server
SqlMapClient operation; uncategorized SQLException for SQL []; SQL state [S1000]; error code [0]; --- The error occurred in sqlmaps/user/userSQL.xml. --- The error occurred while applying a parameter map. --- Check the user.login-InlineParameterMap. --- Check the statement (query failed). --- Cause: java.sql.SQLException: Could not retrieve transation read-only status server; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in sqlmaps/user/userSQL.xml. --- The error occurred while applying a parameter map. --- Check the user.login-InlineParameterMap. --- Check the statement (query failed). --- Cause: java.sql.SQLException: Could not retrieve transation read-only status server