在尝试将 emoji 表情符号插入MySQL数据库时，遇到以下错误信息：
### The error occurred while setting parameters
### SQL: INSERT INTO comment (          id,          comment_type,          content_id,          physician_id,          Content,          create_time,          like_num         ) VALUES (          ?,          ?,          ?,          ?,          ?,          ?,          ?         )
### Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3' for column 'Content' at row 1

四月 12, 2017 11:49:06 上午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [SpringMVC] in context with path [/yuyi] threw exception [Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException:
### Error updating database.  Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3\xF0\x9F...' for column 'Content' at row 1
### The error may involve Comment.insert-Inline
### The error occurred while setting parameters
### SQL: INSERT INTO comment (          id,          comment_type,          content_id,          physician_id,          Content,          create_time,          like_num         ) VALUES (          ?,          ?,          ?,          ?,          ?,          ?,          ?         )
### Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3\xF0\x9F...' for column 'Content' at row 1
; uncategorized SQLException for SQL []; SQL state [HY000]; error code [1366]; Incorrect string value: '\xF0\x9F\x98\xB3\xF0\x9F...' for column 'Content' at row 1; nested exception is java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3\xF0\x9F...' for column 'Content' at row 1] with root cause
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3\xF0\x9F...' for column 'Content' at row 1
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4232)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4164)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2838)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2082)
	at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1307)
	at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:169)
	at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:62)
	at com.sun.proxy.$Proxy26.execute(Unknown Source)
	at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:44)
	at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:69)
	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:48)
	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:105)
	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:71)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:152)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
	at com.sun.proxy.$Proxy271.insert(Unknown Source)
	at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:240)
	at com.wanyu.frame.base.BaseMyIbatisDao.save(BaseMyIbatisDao.java:198)
	at com.wanyu.yuyi.dao.CommentDao.saveOrUpdate(CommentDao.java:29)
	at com.wanyu.yuyi.dao.CommentDao.saveOrUpdate(CommentDao.java:1)
	at com.wanyu.frame.base.BaseManager.saveOrUpdate(BaseManager.java:68)
	at com.wanyu.yuyi.controller.CommentController.AddConment(CommentController.java:230)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1104)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1524)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1480)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
解决方案：

参考：MySQL 解决 emoji表情的方法，使用utf8mb4 字符集(4字节 UTF-8 Unicode 编码)
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\xB3' for column 'Content' at row 1

解决方案：

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