1.创建动态WEB项目

本次在IDEA2021.2.1版本中创建Spring MV

出现webapp文件夹则说明文件创建好啦！

2.配置TomCat

配置完之后，让我们来运行一下！

配置成功了！！！

配置Spring前端控制器

<?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>SpringMVCTest</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>SpringMVCTest 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>
    <!-- 添加springmvc依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.3.6</version>
    </dependency>
    <!-- 添加servlet 依赖 -->
    <dependency>
      <groupId>jakarta.servlet</groupId>
      <artifactId>jakarta.servlet-api</artifactId>
      <version>5.0.0</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.22</version>
      <optional>true</optional>
    </dependency>

    <!-- JSTL 依赖包-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>

    <!--数据校验依赖包-->
    <dependency>
      <groupId>javax.validation</groupId>
      <artifactId>validation-api</artifactId>
      <version>2.0.1.Final</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate.validator</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>6.0.16.Final</version>
    </dependency>

    <!--文件上传依赖包-->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.6</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>SpringMVCTest</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see <http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging> -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

创建spring配置文件

<?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:context="<http://www.springframework.org/schema/context>"
       xmlns:mvc="<http://www.springframework.org/schema/mvc>"
       xsi:schemaLocation="<http://www.springframework.org/schema/beans> <http://www.springframework.org/schema/beans/spring-beans.xsd> <http://www.springframework.org/schema/context> <https://www.springframework.org/schema/context/spring-context.xsd> <http://www.springframework.org/schema/mvc> <http://www.springframework.org/schema/mvc/spring-mvc.xsd>">

    <!--扫描注解包 base-package后面跟包名-->
    <context:component-scan base-package="com.jiaxin"/>

    <!--配置视图解析器-->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--        设置视图名前缀   -->
        <property name="prefix" value="/WEB-INF/view/"/>
<!--        设计视图名后缀    -->
        <property name="suffix" value=".jsp"/>
    </bean>
 </bean>