javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

019-12-28 23:36:32.910 ERROR 6408 --- [nio-8081-exec-7] ashboardConfiguration$ProxyStreamServlet : Error proxying request: https://localhost:8081/actuator/hystrix.stream?delay=2000

javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
	at sun.security.ssl.InputRecord.handleUnknownRecord(InputRecord.java:710) ~[na:1.8.0_201]
	at sun.security.ssl.InputRecord.read(InputRecord.java:527) ~[na:1.8.0_201]
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:975) ~[na:1.8.0_201]
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367) ~[na:1.8.0_201]
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395) ~[na:1.8.0_201]
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379) ~[na:1.8.0_201]
	at org.apache.http.conn.ssl.SSLSocketFactory.createLayeredSocket(SSLSocketFactory.java:573) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:557) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:414) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:326) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.5.jar:4.5.5]
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.5.jar:4.5.5]
	at org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardConfiguration$ProxyStreamServlet.doGet(HystrixDashboardConfiguration.java:177) ~[spring-cloud-netflix-hystrix-dashboard-2.0.4.RELEASE.jar:2.0.4.RELEASE]

使用HystrixDashboard時拋出那樣的異常

然後把https改成http就行了