tomcat无法启动maven工程

错误信息如下：
A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
错误信息最后片段如下：
[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

一般出现该问题是因为tomcat启动失败，从spring文件和web文件中进行排查
我的问题

为web文件中前端控制器除了问题：如下（细节
< /servlet>
< servlet-mapping>
< servlet-name>e3-portal-web< /servlet-name>
< url-pattern>html< /url-pattern>（这里拦截出现细节错误
< /servlet-mapping>
应该
< /servlet>
< servlet-mapping>
< servlet-name>e3-portal-web< /servlet-name>
< url-pattern>*.html< /url-pattern>（正确
< /servlet-mapping>