spring-boot高版本集成com.github.pagehelper出现循环依赖的问题

报错信息

Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.

不鼓励依赖循环引用，默认情况下禁止使用循环引用。更新应用程序以删除bean之间的依赖循环。

"D:\Program Files\Java\jdk1.8.0_271\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:D:\Program Files\JetBrains\IntelliJ IDEA 2021.3.1\lib\idea_rt.jar=56325:D:\Program Files\JetBrains\IntelliJ IDEA 2021.3.1\bin" -Dfile.encoding=UTF-8 -classpath "D:\Program Files\Java\jdk1.8.0_271\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\cldrdata.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\j3dcore.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\j3dutils.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\jfxrt.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\nashorn.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\sunpkcs11.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\vecmath.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\ext\zipfs.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\jce.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\jfxswt.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\resources.jar;D:\Program Files\Java\jdk1.8.0_271\jre\lib\rt.jar;D:\workspace\workspace_idea_20220112\Projects\mall-learning\target\classes;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.6.4\spring-boot-starter-web-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter\2.6.4\spring-boot-starter-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot\2.6.4\spring-boot-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.6.4\spring-boot-starter-logging-2.6.4.jar;C:\Users\win\.m2\repository\ch\qos\logback\logback-classic\1.2.10\logback-classic-1.2.10.jar;C:\Users\win\.m2\repository\ch\qos\logback\logback-core\1.2.10\logback-core-1.2.10.jar;C:\Users\win\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.1\log4j-to-slf4j-2.17.1.jar;C:\Users\win\.m2\repository\org\apache\logging\log4j\log4j-api\2.17.1\log4j-api-2.17.1.jar;C:\Users\win\.m2\repository\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;C:\Users\win\.m2\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;C:\Users\win\.m2\repository\org\yaml\snakeyaml\1.29\snakeyaml-1.29.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.6.4\spring-boot-starter-json-2.6.4.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.13.1\jackson-databind-2.13.1.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.13.1\jackson-annotations-2.13.1.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.13.1\jackson-core-2.13.1.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.1\jackson-datatype-jdk8-2.13.1.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.1\jackson-datatype-jsr310-2.13.1.jar;C:\Users\win\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.1\jackson-module-parameter-names-2.13.1.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.6.4\spring-boot-starter-tomcat-2.6.4.jar;C:\Users\win\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.58\tomcat-embed-core-9.0.58.jar;C:\Users\win\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.58\tomcat-embed-el-9.0.58.jar;C:\Users\win\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.58\tomcat-embed-websocket-9.0.58.jar;C:\Users\win\.m2\repository\org\springframework\spring-web\5.3.16\spring-web-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-beans\5.3.16\spring-beans-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-webmvc\5.3.16\spring-webmvc-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-context\5.3.16\spring-context-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-expression\5.3.16\spring-expression-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-actuator\2.6.4\spring-boot-starter-actuator-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-actuator-autoconfigure\2.6.4\spring-boot-actuator-autoconfigure-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-actuator\2.6.4\spring-boot-actuator-2.6.4.jar;C:\Users\win\.m2\repository\io\micrometer\micrometer-core\1.8.3\micrometer-core-1.8.3.jar;C:\Users\win\.m2\repository\org\hdrhistogram\HdrHistogram\2.1.12\HdrHistogram-2.1.12.jar;C:\Users\win\.m2\repository\org\latencyutils\LatencyUtils\2.0.3\LatencyUtils-2.0.3.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-aop\2.6.4\spring-boot-starter-aop-2.6.4.jar;C:\Users\win\.m2\repository\org\springframework\spring-aop\5.3.16\spring-aop-5.3.16.jar;C:\Users\win\.m2\repository\org\aspectj\aspectjweaver\1.9.7\aspectjweaver-1.9.7.jar;C:\Users\win\.m2\repository\org\springframework\spring-core\5.3.16\spring-core-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-jcl\5.3.16\spring-jcl-5.3.16.jar;C:\Users\win\.m2\repository\com\github\pagehelper\pagehelper-spring-boot-starter\1.2.10\pagehelper-spring-boot-starter-1.2.10.jar;C:\Users\win\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-starter\1.3.2\mybatis-spring-boot-starter-1.3.2.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.6.4\spring-boot-starter-jdbc-2.6.4.jar;C:\Users\win\.m2\repository\com\zaxxer\HikariCP\4.0.3\HikariCP-4.0.3.jar;C:\Users\win\.m2\repository\org\springframework\spring-jdbc\5.3.16\spring-jdbc-5.3.16.jar;C:\Users\win\.m2\repository\org\springframework\spring-tx\5.3.16\spring-tx-5.3.16.jar;C:\Users\win\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-autoconfigure\1.3.2\mybatis-spring-boot-autoconfigure-1.3.2.jar;C:\Users\win\.m2\repository\org\mybatis\mybatis\3.4.6\mybatis-3.4.6.jar;C:\Users\win\.m2\repository\org\mybatis\mybatis-spring\1.3.2\mybatis-spring-1.3.2.jar;C:\Users\win\.m2\repository\com\github\pagehelper\pagehelper-spring-boot-autoconfigure\1.2.10\pagehelper-spring-boot-autoconfigure-1.2.10.jar;C:\Users\win\.m2\repository\com\github\pagehelper\pagehelper\5.1.8\pagehelper-5.1.8.jar;C:\Users\win\.m2\repository\com\github\jsqlparser\jsqlparser\1.2\jsqlparser-1.2.jar;C:\Users\win\.m2\repository\com\alibaba\druid-spring-boot-starter\1.1.10\druid-spring-boot-starter-1.1.10.jar;C:\Users\win\.m2\repository\com\alibaba\druid\1.1.10\druid-1.1.10.jar;C:\Users\win\.m2\repository\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;C:\Users\win\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.6.4\spring-boot-autoconfigure-2.6.4.jar;C:\Users\win\.m2\repository\org\mybatis\generator\mybatis-generator-core\1.3.7\mybatis-generator-core-1.3.7.jar;C:\Users\win\.m2\repository\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar" com.macro.mall.tiny.MallLearningApplication

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.6.4)

2022-03-05 21:20:04.082  INFO 56372 --- [           main] c.m.mall.tiny.MallLearningApplication    : Starting MallLearningApplication using Java 1.8.0_271 on LAPTOP-RGBE7K1S with PID 56372 (D:\workspace\workspace_idea_20220112\Projects\mall-learning\target\classes started by win in D:\workspace\workspace_idea_20220112\Projects\mall-learning)
2022-03-05 21:20:04.082  INFO 56372 --- [           main] c.m.mall.tiny.MallLearningApplication    : No active profile set, falling back to 1 default profile: "default"
2022-03-05 21:20:05.524  INFO 56372 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2022-03-05 21:20:05.540  INFO 56372 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-03-05 21:20:05.540  INFO 56372 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.58]
2022-03-05 21:20:05.732  INFO 56372 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-03-05 21:20:05.732  INFO 56372 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1603 ms
2022-03-05 21:20:05.942  INFO 56372 --- [           main] c.a.d.s.b.a.DruidDataSourceAutoConfigure : Init DruidDataSource
2022-03-05 21:20:06.082  INFO 56372 --- [           main] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} inited
2022-03-05 21:20:06.854  WARN 56372 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration': Invocation of init method failed; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration': Requested bean is currently in creation: Is there an unresolvable circular reference?
2022-03-05 21:20:06.854  INFO 56372 --- [           main] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closed
2022-03-05 21:20:06.854  INFO 56372 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2022-03-05 21:20:06.869  INFO 56372 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-03-05 21:20:06.885 ERROR 56372 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

The dependencies of some of the beans in the application context form a cycle:

┌──->──┐
|  com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration
└──<-──┘


Action:

Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.


Process finished with exit code 1

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原pom.xml代码

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.macro.mall</groupId>
    <artifactId>mall-learning</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mall-learning</name>
    <description>mall-learning</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <!--MyBatis分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.10</version> <!--问题：版本不匹配-->
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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原因与解决方案

因为spring-boot2.5之后的版本解决了循环依赖的问题，相应的依赖插件必须更新到最新不存在循环依赖的代码版本，否则启动springboot就会报错。

因此如果使用的不是com.github.pagehelper的1.4.1之后的版本，就会报错。虽然也可以在配置文件中设置允许循环引用，但既然默认是不允许循环引用还是不改动为好。

解决方案：将com.github.pagehelper版本改为1.4.1

改动后的代码

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.macro.mall</groupId>
    <artifactId>mall-learning</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mall-learning</name>
    <description>mall-learning</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <!--MyBatis分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.4.1</version><!--必须是这个版本，其他版本有相互依赖的类，例如A类依赖B类，B类又引用了A类 -->
        </dependency>
    </dependencies>
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成功解决！