received plaintext http traffic on an https channel, closing connection Netty4HttpChannel{localAddress=/127.0.0.1:9200, remoteAddress=/127.0.0.1:56571}

1.报错截图

2.访问页面

http://localhost:9200/

出现如下

3.原因

ElasticSearch默认开启了安全认证，需要将安全认证关掉

4.解决方法

修改 config/elasticsearch.yml

5.重启

访问：http://localhost:9200/

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