java - 在 Tomcat 7 中是否需要将 context.xml 复制到 conf/Catalina/locahost 中才能生效

Question

刚从 Tomcat 6 迁移到 Tomcat 7 并注意到当您部署一个名为 widget 的 Web 应用程序时，META-INF/context.xml 不再被复制到 conf/Catalina/localhost/widget.xml。

我不清楚是否需要，如果保留在 META-INF 中，是否会使用 context.xml 中的设置，或者它们是否仅在移动到 conf/Catalina/localhost/widget.xml 时才有效

我使用的是 vanilla tomcat 7 安装

Answer 1

参见 documentation (我的重点):

Individual Context elements may be explicitly defined:

• In an individual file at /META-INF/context.xml inside the application files. Optionally (based on the Host's copyXML attribute) this may be copied to $CATALINA_BASE/conf/[enginename]/[hostname]/ and renamed to application's base file name plus a ".xml" extension.

Host 的文档在 copyXML 上有这样的话:

Set to true if you want a context XML descriptor embedded inside the application (located at /META-INF/context.xml) to be copied to xmlBase when the application is deployed. On subsequent starts, the copied context XML descriptor will be used in preference to any context XML descriptor embedded inside the application even if the descriptor embedded inside the application is more recent. The flag's value defaults to false. Note if deployXML is false, this attribute will have no effect.