SpringMVC（4_静态资源处理）

0.代码

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

    <mvc:annotation-driven/>

    <!--<mvc:default-servlet-handler/>-->
    <!--ResourceHandler-->
    <!--
       宇哥.jpg 👉 localhost:8080/pic1/宇哥.jpg
      少年派.jpg 👉 localhost:8080/pic1/jpg/少年派.jpg

        小结：请求url：mapping中的值 + 静态资源相对于location的位置
    -->
    <mvc:resources mapping="/pic1/**" location="/"/>
    <!--
        龙猫.jpg 👉 localhost:8080/pic2/龙猫.jpg
    -->
    <mvc:resources mapping="/pic2/**" location="/WEB-INF/"/>
    <!--location:
        classpath路径： classpath:/
        文件路径： file: 文件路径
    -->
    <mvc:resources mapping="/pic3/**" location="file:D:/gy/spring/"/>

    <!--注意：
        mapping属性：最左侧/   ** 匹配多级url
        location属性：最右侧/
     -->
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:application.xml</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.jpg</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

1.默认的servlet

2、default-servlet-handler

3、静态资源映射（推荐）