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Distributed SQL transaction & query engine for data sharding, scaling, encryption, and more - on any database.
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The props`strategy` cannot be null when uses class based sharding strategy #12002

Closed Comven closed 3 years ago

Comven commented 3 years ago

shardingsphere-jdbc-core-spring-boot-starter-5.0.0-bata

ogistic table 'order_info' divided by month，format just like 'order_info_yyyyMM',

my application.properties configuration is as follows

##
spring.shardingsphere.datasource.names=db1

spring.shardingsphere.datasource.db1.jdbc-url=jdbc:mysql://localhost:3306/db1?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&useSSL=false&reconnect=true&serverTimezone=Asia/Shanghai
spring.shardingsphere.datasource.db1.username=root
spring.shardingsphere.datasource.db1.password=
spring.shardingsphere.datasource.db1.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.db1.driver-class-name=com.mysql.cj.jdbc.Driver
#
spring.shardingsphere.props.sql-show=true
##
spring.shardingsphere.rules.sharding.tables.order_info.actual-data-nodes=db1.order_info_20$->{21...22}$->{[01,02,03,04,05,06,07.08,09,10,11,12]}
spring.shardingsphere.rules.sharding.tables.order_info.table-strategy.standard.sharding-column=add_time
spring.shardingsphere.rules.sharding.tables.order_info.table-strategy.standard.sharding-algorithm-name=tb_class_based
spring.shardingsphere.rules.sharding.sharding-algorithms.tb_class_based.type=CLASS_BASED
spring.shardingsphere.rules.sharding.sharding-algorithms.tb_class_based.props.strategy=standard
spring.shardingsphere.rules.sharding.sharding-algorithms.tb_class_based.props.algorithm-class-name=org.demo.shardingsphere.strategy.MonthsTableStrategyAlgorithm

The error reported by the startup program is as follows

Caused by: java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.

Details are as follows

[2021-08-25 17:46:43.110] [ERROR] [4388] - o.s.boot.SpringApplication              [ 843] : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testController': Unsatisfied dependency expressed through field 'orderInfoDao'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'orderInfoDao' defined in file [D:\WorkPlace\idea\shardingsphere-proj\sharding-5.x\target\classes\org\demo\shardingsphere\mapper\OrderInfoDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionFactory' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingSphereDataSource' defined in class path resource [org/apache/shardingsphere/spring/boot/ShardingSphereAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'shardingSphereDataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:338)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332)
    at org.demo.shardingsphere.App.main(App.java:15)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'orderInfoDao' defined in file [D:\WorkPlace\idea\shardingsphere-proj\sharding-5.x\target\classes\org\demo\shardingsphere\mapper\OrderInfoDao.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionFactory' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingSphereDataSource' defined in class path resource [org/apache/shardingsphere/spring/boot/ShardingSphereAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'shardingSphereDataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1516)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1399)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
    ... 20 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Unsatisfied dependency expressed through method 'sqlSessionFactory' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingSphereDataSource' defined in class path resource [org/apache/shardingsphere/spring/boot/ShardingSphereAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'shardingSphereDataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1501)
    ... 31 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingSphereDataSource' defined in class path resource [org/apache/shardingsphere/spring/boot/ShardingSphereAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'shardingSphereDataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
    ... 44 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'shardingSphereDataSource' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
    ... 58 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shardingRuleConfiguration' defined in class path resource [org/apache/shardingsphere/sharding/spring/boot/ShardingRuleSpringBootConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1598)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1562)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1451)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1338)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory$DependencyObjectProvider.getIfAvailable(DefaultListableBeanFactory.java:2021)
    at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration.shardingSphereDataSource(ShardingSphereAutoConfiguration.java:72)
    at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$EnhancerBySpringCGLIB$$e3945da9.CGLIB$shardingSphereDataSource$0(<generated>)
    at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$EnhancerBySpringCGLIB$$e3945da9$$FastClassBySpringCGLIB$$45e9d415.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331)
    at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$EnhancerBySpringCGLIB$$e3945da9.shardingSphereDataSource(<generated>)
    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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 59 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.shardingsphere.infra.config.RuleConfiguration]: Factory method 'shardingRuleConfiguration' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
    ... 85 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tb_class_based': Initialization of bean failed; nested exception is java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:610)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1598)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1562)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1481)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1338)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory$DependencyObjectProvider.getIfAvailable(DefaultListableBeanFactory.java:2021)
    at org.apache.shardingsphere.sharding.spring.boot.ShardingRuleSpringBootConfiguration.shardingRuleConfiguration(ShardingRuleSpringBootConfiguration.java:67)
    at org.apache.shardingsphere.sharding.spring.boot.ShardingRuleSpringBootConfiguration$$EnhancerBySpringCGLIB$$19712a0e.CGLIB$shardingRuleConfiguration$0(<generated>)
    at org.apache.shardingsphere.sharding.spring.boot.ShardingRuleSpringBootConfiguration$$EnhancerBySpringCGLIB$$19712a0e$$FastClassBySpringCGLIB$$a8865c46.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331)
    at org.apache.shardingsphere.sharding.spring.boot.ShardingRuleSpringBootConfiguration$$EnhancerBySpringCGLIB$$19712a0e.shardingRuleConfiguration(<generated>)
    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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 86 common frames omitted
Caused by: java.lang.NullPointerException: The props`strategy` cannot be null when uses class based sharding strategy.
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:989)
    at org.apache.shardingsphere.sharding.algorithm.sharding.classbased.ClassBasedShardingAlgorithm.init(ClassBasedShardingAlgorithm.java:62)
    at org.apache.shardingsphere.spring.boot.registry.AbstractAlgorithmProvidedBeanRegistry.postProcessAfterInitialization(AbstractAlgorithmProvidedBeanRegistry.java:100)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
    ... 108 common frames omitted

What's wrong with the configuration ? Has anyone experienced the same problem?

avalon5666 commented 3 years ago

This issue is useful to you, #11056