Centos7启动Tomcat9会报错http11.Http11Protocol-auto-null Protocol handler instantiation failed

13-Jan-2020 23:02:48.010 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector[org.apache.coyote.http11.Http11Protocol-auto-null]]
	org.apache.catalina.LifecycleException: Protocol handler instantiation failed
		at org.apache.catalina.connector.Connector.initInternal(Connector.java:945)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.core.StandardService.initInternal(StandardService.java:533)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:1057)
		at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:136)
		at org.apache.catalina.startup.Catalina.load(Catalina.java:584)
		at org.apache.catalina.startup.Catalina.load(Catalina.java:607)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
		at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.base/java.lang.reflect.Method.invoke(Method.java:566)
		at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:303)
		at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)
tomcat/conf/server.xml中不要使用
 
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol" maxThreads="150" SSLEnabled="true"></Connector>
    <Connector port="8443" protocol="HTTP/1.1" maxThreads="150" SSLEnabled="true"></Connector>
                                    修改tomcat/conf/server.xml文件：
<Connectorport="8443" protocol="HTTP/1.1" maxThreads="150"SSLEnabled="true" scheme="https" secure="true"clientAuth="false" sslProtocol="TLS"
           keystoreFile="
                                    在安装和配置Tomcat的过程中，出现了Tomcat启动失败的问题。出现这个问题的原因是Tomcat的默认端口8080被其他线程占用，因此解决这个问题可以采取关掉占用8080端口的线程的方法，或者采取更改Tomcat的端口的方法。
                                    06-Dec-2020 13:29:55.280 严重 [main] org.apache.catalina.util.LifecycleBase.handleSubClassException 初始化组件[Connector[HTTP/1.1-8080]]失败。
	org.apache.catalina.LifecycleException: Protocol handler initialization failed
		at org.apache.catalina.connector.Connect.
                                    Connector attribute SSLCertificateFile must be defined when using SSL with APR解决方法,需要的朋友可以参考下
今天同事要求帮忙配置tomcat ssl,直接把linux下tomcat配置ssl这篇文章发给他了,没想到他居然说启动tomcat的时候,报Connector attribute SSLCertificat
这个包支持http1.1协议，内部分为三类：ARP、NIO、普通http，这里只对最基本的普通http（使用java的IO流，而非NIO流）作简单研究
根据上一篇提到的coyote的接口，这个包主要有以下几个类：
Http11Prot