项目集成 ShardingSphere 的时候, 自己 maven 依赖了 guava, 然后启动项目的时候出现错误:
Caused by: java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkState(ZLjava/lang/String;Ljava/lang/Object;)V
at org.apache.shardingsphere.spring.boot.datasource.DataSourceMapSetter.getDataSource(DataSourceMapSetter.java:88)
at org.apache.shardingsphere.spring.boot.datasource.DataSourceMapSetter.getDataSourceMap(DataSourceMapSetter.java:65)
at org.apache.shardingsphere.spring.boot.ShardingSphereAutoConfiguration.setEnvironment(ShardingSphereAutoConfiguration.java:121)
at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:110)
at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:102)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
… 91 more
解决方法: 可以尝试将 guava 版本升级为 21.0.jar , 然后再尝试启动一次… bingo!