FAQ（82）：Caused by: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x98'

版权声明： https://blog.csdn.net/qq_29166327/article/details/82258706

2018年8月31日

1、日志：

Caused by: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x98' for column 'roleName' at row 1
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3603)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3535)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1989)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2150)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119)
	at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1362)
	at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.execute(NewProxyPreparedStatement.java:989)
	at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:46)
	at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74)
	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50)
	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)
	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
	at com.sun.proxy.$Proxy58.update(Unknown Source)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)
	... 16 more

2、解决方法：

1）定位问题为，mysql的表的字符集问题；

2）修改表的字符集：ALTER TABLE `t_remote_temp_role_change` CONVERT TO CHARACTER SET `utf8mb4` COLLATE `utf8mb4_general_ci`; 

3）最后定位：数据库访问url，不指定字符集为utf8，并更改mysql数据库的默认字符集为utf8mb4；

admin.jdbc.url=jdbc:mysql://localhost:3306/g01_admin?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&allowMultiQueries=true

改为：    
 

admin.jdbc.url=jdbc:mysql://localhost:3306/g01_admin?autoReconnect=true&allowMultiQueries=true