将下述代码保存成pom.xml
<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd ">
<modelVersion>4.0.0</modelVersion>
<groupId>org.jasig.cas</groupId>
<artifactId>cas-overlay</artifactId>
<packaging>war</packaging>
<version>1.0</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warName>cas</warName>
<overlays>
<overlay>
<groupId>org.jasig.cas</groupId>
<artifactId>cas-server-webapp</artifactId>
<excludes>
<exclude>WEB-INF/cas.properties</exclude>
<exclude>WEB-INF/classes/log4j2.xml</exclude>
</excludes>
</overlay>
</overlays>
</configuration>
</plugin>
</plugins>
<finalName>cas</finalName>
</build>
<dependencies>
<dependency>
<groupId>org.jasig.cas</groupId>
<artifactId>cas-server-webapp</artifactId>
<version>${cas.version}</version>
<type>war</type>
<scope>runtime</scope>
</dependency>
</dependencies>
<properties>
<cas.version>4.2.7</cas.version>
</properties>
<repositories>
<repository>
<id>sonatype-releases</id>
<url>http://oss.sonatype.org/content/repositories/releases/</url>
</repository>
<repository>
<id>sonatype-snapshots</id>
<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
</repository>
<repository>
<id>shibboleth-releases</id>
<url>https://build.shibboleth.net/nexus/content/repositories/releases</url>
</repository>
</repositories>
</project>
然后在pom.xml同级目录执行
mvn clean package
然后在target目录下就能看到你要的cas.war了,这个版本是4.2.7。