## bug描述
Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project web_demo1: Could not start Tomcat
## 原因
@WebServlet() 括号里的value 值重复
## 解决办法
检查
注解 @WebServlet() value值

## bug描述
Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project web_demo1: Could not start Tomcat
## 原因
@WebServlet() 括号里的value 值重复
## 解决办法
检查
注解 @WebServlet() value值