存档上下文路径在 Tomcat 上被忽略

Question

关于安装存档，已关注

http://archiva.apache.org/docs/2.2.3/adminguide/webapp.html

<Context path="/archiva"
          docBase="${catalina.home}/archiva/apache-archiva-2.2.3.war">
 <Resource name="jdbc/users" auth="Container" type="javax.sql.DataSource"
           username="archiva"
           password="123456"
           driverClassName="com.mysql.jdbc.Driver"
           url="jdbc:mysql://localhost:3306/archiva?useSSL=false" />
 <Resource name="mail/Session" auth="Container"
            type="javax.mail.Session"
            mail.smtp.host="localhost"/>
</Context>

战争部署到雄猫 8.0.26。

如果我将上下文路径从/archiva 更改为/mavenRepos，它将不起作用。

19-Mar-2018 10:49:32.603 INFO [main] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying deployment descriptor [E:apache-tomcat-9.0.6confCatalinalocalhostarchiva.xml]
19-Mar-2018 10:49:32.638 WARNING [main] org.apache.catalina.startup.HostConfig.deployDescriptor The path attribute with value [/mavenRepos] in deployment descriptor [E:apache-tomcat-9.0.6confCatalinalocalhostarchiva.xml] has been ignored

为什么忽略上下文路径？

Answer 1

https://github.com/apache/tomcat/blob/trunk/java/org/apache/catalina/startup/HostConfig.java#L581 正在记录此警告，这意味着 tomcat 没有使用上下文的 path 属性，因此您不妨将其删除。

为什么雄猫不使用它？

根据 https://tomcat.apache.org/tomcat-9.0-doc/config/context.html#Common_Attributes，路径属性为：

The context path of this web application, which is matched against
the beginning of each request URI to select the appropriate web
application for processing. All of the context paths within a
particular Host must be unique. If you specify a context path
of an empty string (""), you are defining the default web application
for this Host, which will process all requests not assigned to other Contexts.
This attribute must only be used when statically defining a Context
in server.xml. In all other circumstances, the path will be inferred
from the filenames used for either the .xml context file or the docBase.
Even when statically defining a Context in server.xml, this attribute must
not be set unless either the docBase is not located under the Host's appBase
or both deployOnStartup and autoDeploy are false. If this rule is not
followed, double deployment is likely to result.

这意味着将检查服务器收到的每个请求，以查看 URL 是否以 /mavenRepos 开头。 如果是这样，则将其移交给此上下文。

但是，您已经在某处声明了此上下文，与/mavenRepos匹配为时已晚，因为tomcat在到达此处之前已经决定了将请求交给哪个上下文。 注意上面的第二段：This attribute must only be used when statically defining a Context in server.xml.

在您定义路径的其他任何地方，tomcat 在加载文件之前已经从文件名推断出路径。