很多教程配置ssl证书，通过观察其server.xml文件发现其实并不是tomcat9这个版本的，然后我这用的是最新版的 Tomcat9，server.xml文件有点变化，配置应该如下
<!-- <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150" SSLEnabled="true"> <SSLHostConfig> <Certificate certificateKeystoreFile="conf/localhost-rsa.jks" type="RSA" /> </SSLHostConfig> </Connector> --> <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2 This connector uses the APR/native implementation which always uses OpenSSL for TLS. Either JSSE or OpenSSL style configuration may be used. OpenSSL style configuration is used below. --> <!--开启http默认端口，并转向到443端口--> <Connector port="80" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="443" /> <!--开启https默认端口443--><Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true" scheme="https" secure="true" keystoreFile="D:/JAVA/apache-tomcat-9.0.0.M22/conf/cert/214903838350739.pfx" keystorePass="214903838350739" clientAuth="false" SSLProtocol="TLSv1+TLSv1.1+TLSv1.2" ciphers="TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA256"/>也就是手动添了加一段：
<Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true" scheme="https" secure="true" keystoreFile="D:/JAVA/apache-tomcat-9.0.0.M22/conf/cert/214903838350739.pfx" keystorePass="214903838350739" clientAuth="false" SSLProtocol="TLSv1+TLSv1.1+TLSv1.2" ciphers="TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA256"/>