1. 問題原因Spring Data MongoDB 3.x不在提供自動創(chuàng)建索引

> 2021-03-18 15:29:14 |WARN |restartedMain |JustOnceLogger.java:72 |org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator |Automatic index creation will be disabled by default as of Spring Data MongoDB 3.x.Please use 'MongoMappingContext#setAutoIndexCreation(boolean)' or override 'MongoConfigurationSupport#autoIndexCreation()' to be explicit.However, we recommend setting up indices manually in an application ready block. You may use index derivation there as well.> -----------------------------------------------------------------------------------------> @EventListener(ApplicationReadyEvent.class)> public void initIndicesAfterStartup() {>> IndexOperations indexOps = mongoTemplate.indexOps(DomainType.class);>> IndexResolver resolver = new MongoPersistentEntityIndexResolver(mongoMappingContext);> resolver.resolveIndexFor(DomainType.class).forEach(indexOps::ensureIndex);> }> -----------------------------------------------------------------------------------------

2.解決辦法：自動創(chuàng)建改為false

spring:data:mongodb:auto-index-creation: false

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