Maven打包war时怎么添加外部jar包

普通项目转maven项目后，发现Maven打包时并没有添加外部jar包，
所以，下面打包时将添加外部jar同maven中的jar包一起添加到编译后的文件当中，大致配置如下：

项目结构：

pom.xml配置：

<?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>myService</groupId>
    <artifactId>myService</artifactId>
    <version>1.0</version>
    <packaging>war</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <build>
        <finalName>xfj-push-service</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                    <!-- 解决WEB-INF/lib目录下的jar包无法用maven打包 -->
                    <compilerArguments>
                        <extdirs>${pom.basedir}/WebContent/WEB-INF/lib</extdirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <!-- 配置web.xml文件的配置，解决缺少了一个必需的类;
           error： Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project myService: Execution default-war of goal org.apache.maven.plugins:maven-war-plugin:2.2:war failed: A required class was missing while executing org.apache.maven.plugins:maven-war-plugin:2.2:war: Lorg/apache/maven/archiver/MavenArchiveConfiguration; -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.2.0</version>
                <configuration>
                    <!-- 指定web.xml的路径  -->
                    <webXml>WebContent\WEB-INF\web.xml</webXml>
                    <!-- 指定jsp、js、css的路径-->
                    <warSourceDirectory>WebContent</warSourceDirectory>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

重新运行打包后，成功了