Intellij搭建springmvc常见问题解决方案

注意是maven的webapp：

选择maven下一步下一步。

maven下载过慢在setting中加入镜像。我也有疑问这是什么鬼格式，但是证明，格式不用调整，直接粘贴进去：

<mirror>
 
　　 <id>
　　　　nexus-aliyun
　　 </id>
  <mirrorOf>
  *
  </mirrorOf>
  <name>
    Nexus aliyun
  </name>
  <url>
    http://maven.aliyun.com/nexus/content/groups/public
  </url>
</mirror>

我在这里踩了一个特郁闷的坑，注意看这里，没有package war, 这里有毒，导致我的tomcat一直加不进去artifacts

暂时就是这个鬼样子的结构，手动补全结构，

调整一下包：

加入和pom中的依赖和 web.xml和 springmvc.xml

注意这里别丢了 pom:

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.shishi</groupId>
  <artifactId>mymvc</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>
 
  <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>
    <spring-version>5.2.8.RELEASE</spring-version>
  </properties>
 
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring-version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.8.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.1.1</version>
    </dependency>
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.1</version>
    </dependency>
  </dependencies>
</project>

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_3_0.xsd"
     id="WebApp_ID" version="3.0">
   
  <servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:SpringMVC.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

springmvc.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: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 https://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
  <context:component-scan base-package="com.springmvc"></context:component-scan>
  <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/jsp/"></property>
    <property name="suffix" value=".jsp"></property>
  </bean>
  <!--能访问到静态资源,但是URL和控制器中对应的方法没有映射关系-->
  <mvc:default-servlet-handler/>
  <mvc:annotation-driven></mvc:annotation-driven>
</beans>

这已经是很精简版的了。

配置tomcat，我在这里遇到了问题，记录详细点：

（上面删除了mymvc:war也是可以的。图就懒得替换了。）

启动tomcat成功：

而且注意这里不要用http://localhost:8080/ 去试，会404.

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