问题遇到的现象和发生背景
在开始搭建一个商城项目的时候，已经将linux虚拟机及相关环境配好，在idea中已经创建好了webapp，然后进入maven进行clean，进入tomcat执行tomcat.run，最开始的时候服务是可以注册到dubbo中的，但是后来就突然注册不上去了。
问题相关代码，请勿粘贴截图
```web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!--加载spring容器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext*.xml</param-value>
</context-param>
<listener>
<!--监听器监听服务-->
<listener-class>
org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--引入springmvc的前端控制器-->
<!-- <servlet>-->
<!-- <servlet-name>springmvc</servlet-name>-->
<!-- <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>-->
<!-- </servlet>-->
<!-- <servlet-mapping>-->
<!-- <servlet-name>springmvc</servlet-name>-->
<!-- <url-pattern>*.do</url-pattern> -->
<!-- </servlet-mapping>-->
</web-app>
```pom.xml
<?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>com.offcn</groupId>
<artifactId>Dubbodemo-service</artifactId>
<version>1.0</version>
<packaging>war</packaging>
<properties>
<webVersion>3.0</webVersion>
<spring.version>4.3.10.RELEASE</spring.version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- dubbo相关 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.10</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>4.0.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>8081</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
applicationContext-service.xml:
```applicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!--配置dubbo服务相关的配置-->
<dubbo:application name="dubbodemo-service"/>
<!--配置注册中心-->
<dubbo:registry address="zookeeper://192.168.72.127:2181"/>
<!--扫描加载服务接口-->
<dubbo:annotation package="com.offcn.service"/>
</beans>
运行结果及报错内容
我目前的maven环境是这样的：
clean后是这样的：
tomcat.run后是这样的：
网页是这样的：
我的解答思路和尝试过的方法
将maven修改后：
clean后tomcat.run：
网页：
修改文件pom.xml
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<!-- 指定端口 -->
<port>8081</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
clean、tomcat.run：
页面：
我想要达到的结果
正常情况下是在not found 的位置将com.offcn.service的服务注册上去的
