参考 tomcat7-maven-plugin
1)编辑pom.xml
<plugin>
  <groupId>org.apache.tomcat.maven</groupId>
  <artifactId>tomcat7-maven-plugin</artifactId>
  <version>2.0</version>
  <configuration>
    <url>http://127.0.0.1/manager/text</url>
    <server>tomcat</server>
    <username>admin</username>
    <password>admin</password>
  </configuration>
</plugin>
2)编辑tomcat-users.xml
<role rolename="manager-gui"/>
<role rolename="manager-script"/>
<user username="admin" password="admin" roles="manager-gui,manager-script"/>
3)运行tomcat
4)运行mvn tomcat7:deploy