mysql保存出现这个错误，由于一些图标

uncategorized SQLException for SQL []; SQL state [HY000]; error code [1366]; Incorrect string value: '\xF0\x9D\x90\x91\xF0\x9D...' for column 'ssm_category' at row 1; nested exception is java.sql.SQLException: Incorrect string value: '\xF0\x9D\x90\x91\xF0\x9D...' for column 'ssm_category' at row 1
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:90)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:82)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:82)
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
at com.sun.proxy.$Proxy88.insert(Unknown Source)
这个是由于保存的时候用了一些图形，等，将数据库编码设置成utf8mb4编码即可。表也要设置成utf8mb4