java.sql.BatchUpdateException: Incorrect string value: 'xF0xA7x9Dx81xE6xB5...' for column 'completion_content' at row 1 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createBatchUpdateException(SQLError.java:1163) at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1823) at com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1307) at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:970) at com.p6spy.engine.wrapper.StatementWrapper.executeBatch(StatementWrapper.java:97) at com.alibaba.druid.filter.FilterChainImpl.statement_executeBatch(FilterChainImpl.java:3118) at com.alibaba.druid.filter.FilterAdapter.statement_executeBatch(FilterAdapter.java:2507) at com.alibaba.druid.filter.FilterEventAdapter.statement_executeBatch(FilterEventAdapter.java:279) at com.alibaba.druid.filter.FilterChainImpl.statement_executeBatch(FilterChainImpl.java:3
原因是数据库表的编码集 CHARSET=utf8 汉字是三个字符，特殊的情况可能用4个字符‘’
改为utf8mb4就好了
大佬文章详解 https://www.cnblogs.com/Neil223/p/15346052.html
