本文主要是介绍Caused by: java.lang.ClassCastException: class com.github.pagehelper.PageHelper cannot be cast to cl，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
笔者在初学Mybatis使用pageHelp遇到了坑，为了避免其他初学者踩坑，第一时间将解决办法呈现给大家。
报错前的sqlMapConfig.xml文件配置如下，此配置适用于mysql 5.0以及5.0以下版本的配置：
<plugins><plugin interceptor="com.github.pagehelper.PageHelper"><!--设置数据局库的类型，用的是mysql就设置为mysql--><property name="dialect" value="mysql"/></plugin></plugins>
经过网上探索后，发现是版本问题不兼容，因为我使用的是mysql 8.0.24版本。更改后如下：
<plugins><plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin></plugins>
错误异常：
org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in SQL Mapper Configuration
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.lang.ClassCastException: class com.github.pagehelper.PageHelper cannot be cast to class org.apache.ibatis.plugin.Interceptor (com.github.pagehelper.PageHelper and org.apache.ibatis.plugin.Interceptor are in unnamed module of loader 'app')at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64)at cn.seim.test.MybatisTest.m3(MybatisTest.java:60)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:564)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)at org.junit.runners.ParentRunner.run(ParentRunner.java:413)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.lang.ClassCastException: class com.github.pagehelper.PageHelper cannot be cast to class org.apache.ibatis.plugin.Interceptor (com.github.pagehelper.PageHelper and org.apache.ibatis.plugin.Interceptor are in unnamed module of loader 'app')at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:122)at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:99)at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)... 27 more
Caused by: java.lang.ClassCastException: class com.github.pagehelper.PageHelper cannot be cast to class org.apache.ibatis.plugin.Interceptor (com.github.pagehelper.PageHelper and org.apache.ibatis.plugin.Interceptor are in unnamed module of loader 'app')at org.apache.ibatis.builder.xml.XMLConfigBuilder.pluginElement(XMLConfigBuilder.java:189)at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:111)... 29 more这篇关于Caused by: java.lang.ClassCastException: class com.github.pagehelper.PageHelper cannot be cast to cl的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
