YXxy1002 opened a new issue, #34011: URL: https://github.com/apache/shardingsphere/issues/34011
## Question why can't i read props  ### Which version of ShardingSphere did you use? ` <dependency> <groupId>org.apache.shardingsphere</groupId> <artifactId>shardingsphere-jdbc-core-spring-boot-starter</artifactId> <version>5.2.1</version> </dependency> ` ### YAML ` shardingsphere: rules: sharding: sharding-algorithms: uidshardingalgorithm: type: CLASS_BASED props: strategy: standard algorithmClassName: com.task.config.UidShardingAlgorithm tables: t_task_recommend: actual-data-nodes: dw.t_task_recommend table-strategy: standard: sharding-column: Duid sharding-algorithm-name: uidshardingalgorithm ` ### Actual behavior `Caused by: java.lang.NullPointerException: Properties `strategy` can not be null when uses class based sharding strategy. at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:989) ~[guava-30.1.1-jre.jar:?] at org.apache.shardingsphere.sharding.algorithm.sharding.classbased.ClassBasedShardingAlgorithm.getStrategy(ClassBasedShardingAlgorithm.java:66) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.sharding.algorithm.sharding.classbased.ClassBasedShardingAlgorithm.init(ClassBasedShardingAlgorithm.java:59) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.util.spi.type.typed.TypedSPIRegistry.findRegisteredService(TypedSPIRegistry.java:66) ~[shardingsphere-infra-util-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.util.spi.type.typed.TypedSPIRegistry.getRegisteredService(TypedSPIRegistry.java:113) ~[shardingsphere-infra-util-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.config.algorithm.ShardingSphereAlgorithmFactory.createAlgorithm(ShardingSphereAlgorithmFactory.java:40) ~[shardingsphere-infra-common-5.2.1.jar:5.2.1] at org.apache.shardingsphere.sharding.factory.ShardingAlgorithmFactory.newInstance(ShardingAlgorithmFactory.java:45) ~[shardingsphere-sharding-api-5.2.1.jar:5.2.1] at org.apache.shardingsphere.sharding.rule.ShardingRule.lambda$new$0(ShardingRule.java:120) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at java.util.LinkedHashMap.forEach(LinkedHashMap.java:721) ~[?:?] at org.apache.shardingsphere.sharding.rule.ShardingRule.<init>(ShardingRule.java:120) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.sharding.rule.builder.ShardingRuleBuilder.build(ShardingRuleBuilder.java:41) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.sharding.rule.builder.ShardingRuleBuilder.build(ShardingRuleBuilder.java:35) ~[shardingsphere-sharding-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.rule.builder.database.DatabaseRulesBuilder.build(DatabaseRulesBuilder.java:58) ~[shardingsphere-infra-common-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase.create(ShardingSphereDatabase.java:87) ~[shardingsphere-infra-common-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabasesFactory.createGenericDatabases(ShardingSphereDatabasesFactory.java:81) ~[shardingsphere-infra-common-5.2.1.jar:5.2.1] at org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabasesFactory.create(ShardingSphereDatabasesFactory.java:69) ~[shardingsphere-infra-common-5.2.1.jar:5.2.1] at org.apache.shardingsphere.mode.metadata.MetaDataContextsFactory.create(MetaDataContextsFactory.java:91) ~[shardingsphere-mode-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.mode.metadata.MetaDataContextsFactory.create(MetaDataContextsFactory.java:69) ~[shardingsphere-mode-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.mode.manager.standalone.StandaloneContextManagerBuilder.build(StandaloneContextManagerBuilder.java:49) ~[shardingsphere-standalone-mode-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.driver.jdbc.core.datasource.ShardingSphereDataSource.createContextManager(ShardingSphereDataSource.java:76) ~[shardingsphere-jdbc-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.driver.jdbc.core.datasource.ShardingSphereDataSource.<init>(ShardingSphereDataSource.java:64) ~[shardingsphere-jdbc-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.driver.api.ShardingSphereDataSourceFactory.createDataSource(ShardingSphereDataSourceFactory.java:93) ~[shardingsphere-jdbc-core-5.2.1.jar:5.2.1] at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration.shardingSphereDataSource(ShardingSphereAutoConfiguration.java:91) ~[shardingsphere-jdbc-core-spring-boot-starter-5.2.1.jar:5.2.1] at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$SpringCGLIB$$0.CGLIB$shardingSphereDataSource$2(<generated>) ~[shardingsphere-jdbc-core-spring-boot-starter-5.2.1.jar:5.2.1] at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$SpringCGLIB$$2.invoke(<generated>) ~[shardingsphere-jdbc-core-spring-boot-starter-5.2.1.jar:5.2.1] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:258) ~[spring-core-6.0.4.jar:6.0.4] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-6.0.4.jar:6.0.4] at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration$$SpringCGLIB$$0.shardingSphereDataSource(<generated>) ~[shardingsphere-jdbc-core-spring-boot-starter-5.2.1.jar:5.2.1] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
