老师帮我看一下这个错误是怎么回事

package com.imooc.mall;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

public class ImoocMallApplication {

    public static void main(String[] args) {
        SpringApplication.run(ImoocMallApplication.class, args);
    }

}


​
​

server.port=8083

spring.datasource.name=imooc_mall_datasource
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/imooc_mall?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false&serverTimezone=Asia/Shanghai
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=root

mybatis.mapper-locations=classpath:mappers/*.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
  <!-- 配置文件，放在resource目录下即可 -->
  <!--数据库驱动个人配置-->
  <classPathEntry
    location="D:/imooc-mall(1)/src/main/resources/mysql-connector-java-8.0.18.jar"/>
  <context id="MysqlTables" targetRuntime="MyBatis3">
    <property name="autoDelimitKeywords" value="true"/>
    <!--可以使用``包括字段名，避免字段名与sql保留字冲突报错-->
    <property name="beginningDelimiter" value="`"/>
    <property name="endingDelimiter" value="`"/>
    <!-- optional，旨在创建class时，对注释进行控制 -->
    <commentGenerator>
      <property name="suppressDate" value="true"/>
      <property name="suppressAllComments" value="true"/>
    </commentGenerator>
    <!--数据库链接地址账号密码-->
    <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
      connectionURL="jdbc:mysql://127.0.0.1:3306/imooc_mall?useUnicode=true&amp;characterEncoding=UTF-8&amp;zeroDateTimeBehavior=convertToNull"
      userId="root"
      password="root">
      <property name="nullCatalogMeansCurrent" value="true"/>
    </jdbcConnection>
    <!-- 非必需，类型处理器，在数据库类型和java类型之间的转换控制-->
    <javaTypeResolver>
      <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>
    <!--生成Model类存放位置-->
    <javaModelGenerator targetPackage="com.imooc.mall.model.pojo"
      targetProject="src/main/java">
      <!-- 是否允许子包，即targetPackage.schemaName.tableName -->
      <property name="enableSubPackages" value="true"/>
      <!-- 是否对类CHAR类型的列的数据进行trim操作 -->
      <property name="trimStrings" value="true"/>
      <!-- 建立的Model对象是否 不可改变  即生成的Model对象不会有 setter方法，只有构造方法 -->
      <property name="immutable" value="false"/>
    </javaModelGenerator>
    <!--生成mapper映射文件存放位置-->
    <sqlMapGenerator targetPackage="mappers" targetProject="src/main/resources">
      <property name="enableSubPackages" value="true"/>
    </sqlMapGenerator>
    <!--生成Dao类存放位置-->
    <javaClientGenerator type="XMLMAPPER" targetPackage="com.imooc.mall.model.dao"
      targetProject="src/main/java">
      <property name="enableSubPackages" value="true"/>
    </javaClientGenerator>
    <!--生成对应表及类名-->
    <table schema="root" tableName="imooc_mall_cart" domainObjectName="Cart"
      enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>
    <table tableName="imooc_mall_category" domainObjectName="Category" enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>
    <table tableName="imooc_mall_order" domainObjectName="Order" enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>
    <table tableName="imooc_mall_order_item" domainObjectName="OrderItem"
      enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>
    <table tableName="imooc_mall_product" domainObjectName="Product" enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>
    <table tableName="imooc_mall_user" domainObjectName="User" enableCountByExample="false"
      enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false"
      selectByExampleQueryId="false">
    </table>

  </context>
</generatorConfiguration>

"C:\Program Files\Java\jdk1.8.0_291\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -javaagent:C:\Users\yizhun1999\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\211.7142.45\lib\idea_rt.jar=58314:C:\Users\yizhun1999\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\211.7142.45\bin -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_291\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_291\jre\lib\rt.jar;D:\imooc-mall(1)\target\classes;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.2.1.RELEASE\spring-boot-starter-web-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter\2.2.1.RELEASE\spring-boot-starter-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot\2.2.1.RELEASE\spring-boot-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.2.1.RELEASE\spring-boot-autoconfigure-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.2.1.RELEASE\spring-boot-starter-logging-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\yizhun1999\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\yizhun1999\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.12.1\log4j-to-slf4j-2.12.1.jar;C:\Users\yizhun1999\.m2\repository\org\apache\logging\log4j\log4j-api\2.12.1\log4j-api-2.12.1.jar;C:\Users\yizhun1999\.m2\repository\org\slf4j\jul-to-slf4j\1.7.29\jul-to-slf4j-1.7.29.jar;C:\Users\yizhun1999\.m2\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;C:\Users\yizhun1999\.m2\repository\org\yaml\snakeyaml\1.25\snakeyaml-1.25.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.2.1.RELEASE\spring-boot-starter-json-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.10.0\jackson-databind-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.10.0\jackson-annotations-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.10.0\jackson-core-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.10.0\jackson-datatype-jdk8-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.10.0\jackson-datatype-jsr310-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.10.0\jackson-module-parameter-names-2.10.0.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.2.1.RELEASE\spring-boot-starter-tomcat-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.27\tomcat-embed-core-9.0.27.jar;C:\Users\yizhun1999\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.27\tomcat-embed-el-9.0.27.jar;C:\Users\yizhun1999\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.27\tomcat-embed-websocket-9.0.27.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-validation\2.2.1.RELEASE\spring-boot-starter-validation-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\jakarta\validation\jakarta.validation-api\2.0.1\jakarta.validation-api-2.0.1.jar;C:\Users\yizhun1999\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.18.Final\hibernate-validator-6.0.18.Final.jar;C:\Users\yizhun1999\.m2\repository\org\jboss\logging\jboss-logging\3.4.1.Final\jboss-logging-3.4.1.Final.jar;C:\Users\yizhun1999\.m2\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-web\5.2.1.RELEASE\spring-web-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-beans\5.2.1.RELEASE\spring-beans-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-webmvc\5.2.1.RELEASE\spring-webmvc-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-aop\5.2.1.RELEASE\spring-aop-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-context\5.2.1.RELEASE\spring-context-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-expression\5.2.1.RELEASE\spring-expression-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\slf4j\slf4j-api\1.7.29\slf4j-api-1.7.29.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-core\5.2.1.RELEASE\spring-core-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-jcl\5.2.1.RELEASE\spring-jcl-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-starter\1.3.2\mybatis-spring-boot-starter-1.3.2.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.2.1.RELEASE\spring-boot-starter-jdbc-2.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\com\zaxxer\HikariCP\3.4.1\HikariCP-3.4.1.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-jdbc\5.2.1.RELEASE\spring-jdbc-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\springframework\spring-tx\5.2.1.RELEASE\spring-tx-5.2.1.RELEASE.jar;C:\Users\yizhun1999\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-autoconfigure\1.3.2\mybatis-spring-boot-autoconfigure-1.3.2.jar;C:\Users\yizhun1999\.m2\repository\org\mybatis\mybatis\3.4.6\mybatis-3.4.6.jar;C:\Users\yizhun1999\.m2\repository\org\mybatis\mybatis-spring\1.3.2\mybatis-spring-1.3.2.jar;C:\Users\yizhun1999\.m2\repository\mysql\mysql-connector-java\8.0.18\mysql-connector-java-8.0.18.jar" com.imooc.mall.ImoocMallApplication

  .   ____          _            __ _ _

 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \

( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \

 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )

  '  |____| .__|_| |_|_| |_\__, | / / / /

 =========|_|==============|___/=/_/_/_/

 :: Spring Boot ::        (v2.2.1.RELEASE)

2021-05-27 10:38:57.236  INFO 14512 --- [           main] com.imooc.mall.ImoocMallApplication      : Starting ImoocMallApplication on D-C0250DVC-0953 with PID 14512 (D:\imooc-mall(1)\target\classes started by yizhun1999 in D:\imooc-mall(1))

2021-05-27 10:38:57.239  INFO 14512 --- [           main] com.imooc.mall.ImoocMallApplication      : No active profile set, falling back to default profiles: default

2021-05-27 10:38:57.315  WARN 14512 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.

2021-05-27 10:38:57.370 ERROR 14512 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:156) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at com.imooc.mall.ImoocMallApplication.main(ImoocMallApplication.java:10) [classes/:na]

Caused by: org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:203) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:153) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

... 8 common frames omitted

Process finished with exit code 1