错误描述

Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName=‘root’, source=‘iot’, password=, mechanismProperties={}}; nested exception is com.mongodb.MongoSecurityException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName=‘root’, source=‘iot’, password=, mechanismProperties={}}

解决方法

修改配置文件为

# mongodb配置
spring.data.mongodb.host=172.24.1.172
spring.data.mongodb.username=root
spring.data.mongodb.password=SWsyb_172_mongodb
spring.data.mongodb.port=27017
spring.data.mongodb.database=iot
spring.data.mongodb.authentication-database=admin