问题

原先的功能接口都无法保存，出现如下错误：net.sf.jsqlparser.statement.select.SetOperationList cannot be cast to net.sf.jsqlparser.statement.select.PlainSelect

https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper-spring-boot-starter
pagehelper 依赖升级版本1.4.6并且排除jsqlparser依赖，使pagehelper分页与mybatis-plus分页兼容存在

xxxx.TenantBroker$TenantBrokerExceptionWrapper: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: java.lang.ClassCastException: net.sf.jsqlparser.statement.select.SetOperationList cannot be cast to net.sf.jsqlparser.statement.select.PlainSelect
### The error may exist in xxxx/SysLogMapper.java (best guess)
### The error may involve xxxx.mapper.SysLogMapper.insert
### The error occurred while executing an update

排查

使用的是mybatis + pageHealper做分页，新增的依赖和原本的mybatis-plus里面依赖是出现依赖冲突

• mybatis-plus版本

	<!--mybatis-->
	<dependency>
	    <groupId>com.baomidou</groupId>
	    <artifactId>mybatis-plus-boot-starter</artifactId>
	    <version>3.5.3.2</version>
	</dependency>

• pagehelper版本

	<!--分页封装使用-->
	<dependency>
		<groupId>com.github.pagehelper</groupId>
		<artifactId>pagehelper-spring-boot-starter</artifactId>
		<version>1.4.6</version>
	</dependency>

解决

进行依赖排除处理jsqlparser、mybatis、mybatis-spring，重新运行项目服务后正常

	<!--mybatis-->
	<dependency>
	    <groupId>com.baomidou</groupId>
	    <artifactId>mybatis-plus-boot-starter</artifactId>
	    <version>3.5.3.1</version>
	</dependency>
	<!-- pagehelper 分页封装使用 -->
	<!-- pagehelper 依赖升级版本1.4.6并且排除jsqlparser依赖，使pagehelper分页与mybatis-plus分页兼容存在 -->
	<dependency>
		<groupId>com.github.pagehelper</groupId>
		<artifactId>pagehelper-spring-boot-starter</artifactId>
		<version>1.4.6</version>
		<exclusions>
			<exclusion>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis</artifactId>
			</exclusion>
			<exclusion>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis-spring</artifactId>
			</exclusion>
			<exclusion>
				<groupId>com.github.jsqlparser</groupId>
				<artifactId>jsqlparser</artifactId>
			</exclusion>
		</exclusions>
	</dependency>