Tomcat - How to specify properties that can be expanded in server.xml

问题

Currently, I have in my server.xml:

<Connector port="8080" protocol="HTTP/1.1" 
           connectionTimeout="20000" 
           redirectPort="8443" />

I want it to become:

<Connector port="${oms.ui.port}" protocol="HTTP/1.1" 
           connectionTimeout="20000" 
           redirectPort="8443" />

I put this property oms.ui.port in a property file residing in apache-tomcat-7.0.8\lib but it does not find it, I get:

WARNING: [SetAllPropertiesRule]{Server/Service/Connector} Setting property 'port' to '${oms.ui.port}' did not find a matching property.

Maybe someone with a better Tomcat experience can help me, please?

回答1:

According to Tomcat 7.0 Configuration Overview:

Apache Ant-style variable substitution is supported; a system property with the name propname may be used in a configuration file using the syntax ${propname}. All system properties are available including those set using the -D syntax, those automatically made available by the JVM and those configured in the $CATALINA_BASE/conf/catalina.properties file.

So you can use either a JVM system property or catalina.properties to declare your variable and assign a value to it.

来源：https://stackoverflow.com/questions/8254543/tomcat-how-to-specify-properties-that-can-be-expanded-in-server-xml