tomcat支持兩個ssl鏈接的方法：

打開server.xml配置，代碼如下：

<?xml version="1.0" encoding="UTF-8"?>
<!--  訪問 80 重定向到 443 -->
    <Connector port="80" maxHttpHeaderSize="8192" address="0.0.0.0"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" /> 
　　<!-- 特別注意 defaultSSLHostConfigName 要配置一個默認的訪問域名  -->    
    <Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol"
               maxThreads="150" SSLEnabled="true" defaultSSLHostConfigName="www.test.a.com">
       <SSLHostConfig hostName="www.test.a.com">
            <Certificate certificateKeystoreFile="D:\tomcat\apache-tomcat-8.5.20\cert\1\a.pfx" certificateKeystorePassword="a的密碼"
                         certificateKeystoreType="PKCS12" />
        </SSLHostConfig>
        
        <SSLHostConfig hostName="www.test.b.com">
            <Certificate certificateKeystoreFile="D:\tomcat\apache-tomcat-8.5.20\cert\2\b.pfx" certificateKeystorePassword="b的密碼"
                         certificateKeystoreType="PKCS12" />
        </SSLHostConfig>
        
       
    </Connector>
 
    <Connector port="8009" protocol="AJP/1.3" redirectPort="443" />
    <Engine name="Catalina" defaultHost="www.test.a.com">
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>
　　　　<!-- 這里配置的兩個域名訪問的是同一個 項目  -->
      <Host name="www.test.a.com"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
            
            <Alias>www.test.a.com</Alias>
            <Alias>www.test.b.com</Alias>
            
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t "%r" %s %b" />
      </Host>
      
    </Engine>
  </Service>
</Server>