1.背景

Flink写入es的时候，报错如下

Caused by: org.apache.http.ProtocolException: Not a valid protocol version: This 1s not an HTTP portat org apache.http.impl.nio.codecs.Abstrac tMessageParser.parse(Abstrac tMessageParser.java:209)at org.apache.http.impl nio.Def aultNHttpCllentConnectio.consumeInput (Defaul tNHttpClientConnection java:245)at org.apache.http.impl.nio cllent.InternalIODispatch.onInputReady( InternalI0Dispatch java:81)at org.apache.http.impl.n1o.clen InternalI0Dispatch.onInputReady(InternalI0Dispc java:39)at org.apache.http.impl.nio.reactor.Abs tractIODispatch.inputReady (Abs trac tI0D1spatch.java:114)at org.apache.http.impl.n1o.reac tor.BaseIOReactor.readable (Bas eIOReactor.java: 162