maven项目无法监听ServletContext创建

Question

package com.vx202158.Listeren;

import javax.servlet.ServletContextEvent;

public class ServletContextListener implements javax.servlet.ServletContextListener {

    @Override
    public void contextInitialized(ServletContextEvent sce) {
        System.out.println("启动了---------------");
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
        System.out.println("销毁了---------");
    }
}

 

<?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>org.example</groupId>
  <artifactId>Maven</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>Maven Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

    <!-- Servlet JAR包 -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.1</version>
      <scope>provided</scope>
    </dependency>
    <!--    Spring依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.3.8</version>
    </dependency>

    <!--    Mysql依赖-->
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.19</version>
    </dependency>

    <!--C3P0 JAR包-->
    <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
    <!--        <dependency>-->
    <!--            <groupId>com.mchange</groupId>-->
    <!--            <artifactId>c3p0</artifactId>-->
    <!--            <version>0.9.5.5</version>-->
    <!--        </dependency>-->


    <!-- Druid JAR包-->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.2.6</version>
    </dependency>

    <!-- Spring JAR包 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.3.8</version>
    </dependency>


<!--  Spring-web JAR包  -->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.3.8</version>
    </dependency>

  </dependencies>


  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.2</version>
        <configuration>
          <port>80</port>
          <path>/</path>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

TOMCAT启动监听不到ServletTcontext启动  

Answer 1

头大了，原来web.xml种忘记配置了 

<listener>
    <listener-class>com.vx202158.Listeren.ServletContextListener</listener-class>
</listener>