1.默认激活

Maven给我们提供了多种不同的profile激活方式。比如我们可以使用-P参数显示的激活一个profile,也可以根据环境条件的设置让它自动激活等。

         <profile>
<id>dev</id>
<properties>
<profile.dir>src/main/profiles/dev</profile.dir>
</properties>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
</profile>
<profile>
<id>beta-bh</id>
<properties>
<profile.dir>src/main/profiles/beta-gn</profile.dir>
</properties>
</profile>

我们可以在profile中的activation元素中指定激活条件,当没有指定条件,然后指定activeByDefault为true的时候就表示当没有指定其他profile为激活状态时,该profile就默认会被激活。所以当我们调用mvn package的时候上面的dev将会被激活,但是当我们使用mvn package -Pbeta-gn的时候将激活beta-gn,而这个时候dev将不会被激活。

2.去掉

<activation>
<activeByDefault>true</activeByDefault>
</activation>

此时激活的为自己配置的。如:

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" alt="" />

则被激活的为beta-gn。如果不去掉activeByDefault,即使使用配置beta-gn,激活的也是dev

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