blocks|key|1390160|text|我知道这个帖子很老，但是…|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1390161|Greg提供的文档链接很有趣：|1390162|port:
The+port+to+run+the+Tomcat+server+on.
++++Type:+int
++++Required:+No
++++Expression:+${maven.tomcat.port}
++++Default:+8080|code-block|syntax|javascript|1390163|表达式是maven用来在其代码中获取值的表达式。它可以来自配置文件，也可以来自命令行。|1390164|你可以跑|1390165|mvn+-Dmaven.tomcat.port=8181+tomcat:run-war|1390166|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|V|8|@]|9|@]|A|$G|H]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I know this thread is old but…

The link to the documentation, provided by Greg is interesting :

<pre><code>port:
The port to run the Tomcat server on.
 Type: int
 Required: No
 Expression: ${maven.tomcat.port}
 Default: 8080
</code></pre>

The expression is what maven use to get the value in its code. It could come from a configuration file, or from the command line.

You could run

<pre><code>mvn -Dmaven.tomcat.port=8181 tomcat:run-war
</code></pre>

blocks|key|1390319|text|下面的内容对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1390320|++++++++<properties>
++++++++++++<maven.tomcat.port>9090</maven.tomcat.port>
++++++++</properties>

++++++++<plugin>
++++++++++++<groupId>org.apache.tomcat.maven</groupId>
++++++++++++<artifactId>tomcat7-maven-plugin</artifactId>
++++++++++++<version>2.2</version>
++++++++++++<configuration>
++++++++++++++++<port>${maven.tomcat.port}</port>
++++++++++++</configuration>
++++++++</plugin>|code-block|syntax|javascript|1390321|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Below worked for me:

<pre><code> &lt;properties&gt;
 &lt;maven.tomcat.port&gt;9090&lt;/maven.tomcat.port&gt;
 &lt;/properties&gt;

 &lt;plugin&gt;
 &lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.2&lt;/version&gt;
 &lt;configuration&gt;
 &lt;port&gt;${maven.tomcat.port}&lt;/port&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
</code></pre>

blocks|key|1390277|text|您可以通过向端口添加属性port来永久添加端口配置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1390278|<build>
++++<plugins>
++++++++<plugin>
++++++++++++<groupId>org.apache.tomcat.maven</groupId>
++++++++++++<artifactId>tomcat7-maven-plugin</artifactId>
++++++++++++<version>2.0</version>
++++++++++++<configuration>
++++++++++++++++<port>9090</port>
++++++++++++</configuration>
++++++++</plugin>
++++</plugins>
</build>|code-block|syntax|javascript|1390279|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You coud add the port configuration permanently by adding the attribute port to it.

<pre><code>&lt;build&gt;
 &lt;plugins&gt;
 &lt;plugin&gt;
 &lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.0&lt;/version&gt;
 &lt;configuration&gt;
 &lt;port&gt;9090&lt;/port&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
 &lt;/plugins&gt;
&lt;/build&gt;
</code></pre>

blocks|key|1604968|text|如果您使用的是maven+tomcat插件，则可以通过向pom.xml添加插件配置块来执行specify+a+context.xml：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1604969|<project>
++...
++<build>
++++<plugins>
++++++<plugin>
++++++++<groupId>org.codehaus.mojo</groupId>
++++++++<artifactId>tomcat-maven-plugin</artifactId>
++++++++<version>1.0-beta-1</version>
++++++++<configuration>
++++++++++<mode>both</mode>
++++++++</configuration>
++++++</plugin>
++++</plugins>
++</build>
++...
</project>|code-block|syntax|javascript|1604970|使用的默认context.xml文件位于src/main/webapp/META-INF/context.xml。|style|CODE|1604971|在那里设置不同的端口。|1604972|entityMap|0|LINK|mutability|MUTABLE|url|http://mojo.codehaus.org/tomcat-maven-plugin/examples/deployment.html^0|19|L|0|0|0|K|10|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|11|8|@$A|12|B|13|K|L]]|9|@]|C|$]]|$1|M|3|N|5|6|7|14|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

If you are using the maven tomcat plugin, you can <a href="http://mojo.codehaus.org/tomcat-maven-plugin/examples/deployment.html" rel="nofollow noreferrer">specify a context.xml</a> by adding a plugin configuration block to the pom.xml:

<pre><code>&lt;project&gt;
 ...
 &lt;build&gt;
 &lt;plugins&gt;
 &lt;plugin&gt;
 &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat-maven-plugin&lt;/artifactId&gt;
 &lt;version&gt;1.0-beta-1&lt;/version&gt;
 &lt;configuration&gt;
 &lt;mode&gt;both&lt;/mode&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
 &lt;/plugins&gt;
 &lt;/build&gt;
 ...
&lt;/project&gt;
</code></pre>

The default context.xml file used is located at <code>src/main/webapp/META-INF/context.xml</code>. 

Set different ports there.

blocks|key|1605109|text|我认为最好也是最简单的方法是(如果你的测试被正确地绑定到集成阶段)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1605110|<plugin>
++++<groupId>org.codehaus.mojo</groupId>
++++<artifactId>build-helper-maven-plugin</artifactId>
++++<executions>
++++++++<execution>
++++++++++++<id>reserve-network-port</id>
++++++++++++<goals>
++++++++++++++++<goal>reserve-network-port</goal>
++++++++++++</goals>
++++++++++++<phase>pre-integration-test</phase>
++++++++++++<configuration>
++++++++++++++++<portNames>++++++
++++++++++++++++++++<portName>maven.tomcat.port</portName>
++++++++++++++++</portNames>
++++++++++++</configuration>
++++++++</execution>
++++</executions>
</plugin>|code-block|syntax|javascript|1605111|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I think best and simplest is this (if your test are properly bind to integration phase):

<pre><code>&lt;plugin&gt;
 &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
 &lt;artifactId&gt;build-helper-maven-plugin&lt;/artifactId&gt;
 &lt;executions&gt;
 &lt;execution&gt;
 &lt;id&gt;reserve-network-port&lt;/id&gt;
 &lt;goals&gt;
 &lt;goal&gt;reserve-network-port&lt;/goal&gt;
 &lt;/goals&gt;
 &lt;phase&gt;pre-integration-test&lt;/phase&gt;
 &lt;configuration&gt;
 &lt;portNames&gt; 
 &lt;portName&gt;maven.tomcat.port&lt;/portName&gt;
 &lt;/portNames&gt;
 &lt;/configuration&gt;
 &lt;/execution&gt;
 &lt;/executions&gt;
&lt;/plugin&gt;
</code></pre>

blocks|key|1390359|text|<plugin>
++++<groupId>org.apache.tomcat.maven</groupId>
++++<artifactId>tomcat7-maven-plugin</artifactId>
++++<version>2.2</version>
++++<configuration>
++++++++<server>tomcat-development-server</server>
++++++++<port>9090</port>
++++</configuration>
</plugin>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1390360|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;plugin&gt;
 &lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.2&lt;/version&gt;
 &lt;configuration&gt;
 &lt;server&gt;tomcat-development-server&lt;/server&gt;
 &lt;port&gt;9090&lt;/port&gt;
 &lt;/configuration&gt;
&lt;/plugin&gt;
</code></pre>

blocks|key|1605249|text|在花了大约3个小时研究如何在POM.xml中更改端口之后，下面是我的最新解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1605250|<plugin>
++<groupId>org.apache.tomcat.maven</groupId>
++<artifactId>tomcat7-maven-plugin</artifactId>
++<version>2.2</version>
++<configuration>
++<maven.tomcat.port>8081</maven.tomcat.port>
++</configuration>
+</plugin>|code-block|syntax|javascript|1605251|由于这不是您可以在<configuration>中设置的属性，因此仅使用port是行不通的。我们需要了解是什么导致了这个问题。在我的例子中，错误是采用了端口8080。我将server.xml中的端口更改为8081，但maven不会从那里获取它。我们需要在configuration字段中明确地告诉它。这就是<maven.tomcat.port>8081</maven.tomcat.port>出手相救的地方。注意:您可以将端口8081更改为您喜欢的其他端口。|offset|length|style|CODE|1605252|entityMap^0|0|0|9|F|10|4|26|4|2D|A|2U|4|3J|D|49|17|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]|$I|V|J|W|K|L]|$I|X|J|Y|K|L]|$I|Z|J|10|K|L]|$I|11|J|12|K|L]|$I|13|J|14|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|N|$]]

After spending about 3 hours on how to change the port in POM.xml, Here is my latest solution.

<pre><code>&lt;plugin&gt;
 &lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
 &lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.2&lt;/version&gt;
 &lt;configuration&gt;
 &lt;maven.tomcat.port&gt;8081&lt;/maven.tomcat.port&gt;
 &lt;/configuration&gt;
 &lt;/plugin&gt;
</code></pre>

Using just <code>port</code> was not working since that is not a property that you can set in <code>&lt;configuration&gt;</code>. We need to understand what is causing the problem. In my case, error was that port <code>8080</code> is taken. I changed the port in <code>server.xml</code> to <code>8081</code> but maven does not take it from there. We need to specifically tell it in <code>configuration</code> field. This is where <code>&lt;maven.tomcat.port&gt;8081&lt;/maven.tomcat.port&gt;</code> comes in rescue. Note: You can chnage the port 8081 to something else you like.

Is there an easy way to specify an alternate port for Tomcat in the pom or on the commandline. I'd like to have several projects running on the same machine.

Alternate port for Tomcat (not 8080) when starting with Maven?

有没有一种简单的方法可以在pom或命令行中为Tomcat指定一个替代端口。我希望在同一台机器上运行几个项目。

问当使用Maven启动时，Tomcat的替代端口(不是8080)？
EN

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问当使用Maven启动时，Tomcat的替代端口(不是8080)？EN

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问当使用Maven启动时，Tomcat的替代端口(不是8080)？
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