将maven项目打成war包

//修改成war包
<packaging>war</packaging>
//plugins中添加新的配置
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.2</version>
            <configuration>
                <!-- 指定web.xml的路径  -->
                <webXml>web/WEB-INF/web.xml</webXml>
                <!-- 指定jsp、js、css的路劲 -->
                <warSourceDirectory>web</warSourceDirectory>
            </configuration>
        </plugin>
    </plugins>
</build>
//添加servlet依赖
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
</dependency>