没有 web.xml 如何使用 Maven 打 war 包？

[weixin_38051012]

我使用 Servlet 3 开发了一个 Web 应用，打算采用 Maven 打 war 包。执行 mvn package 命令后，出现如下错误： [ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.1.1:war (default-war) on project smart-sample: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1] [ERROR]  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR]  [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException 请问应该如何解决？