NoNodeAvailableException[None of the configured nodes are available:[.127.0.0.1}{127.0.0.1:9300]

我在springboot 集成 elasticsearch，啓動springboot測試創建索引，建立索引的時候報 ： NoNodeAvailableException[None of the configured nodes are available: [{#transport#-1}{jzxmY2H9RVSWNO1-6y28sA}{127.0.0.1}{127.0.0.1:9300}]] .

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