java - Spring MVC 无法加载 CSS

Question

我尝试创建简单的 spring mvc 元素，但我的index.jsp 不想加载CSS。我用谷歌搜索了这个问题并尝试了很多方法，但没有任何改变。

我的WebAppConfig:

@Configuration
@ComponentScan(basePackages = {"org.training.ytaranau"})
public class WebAppConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Bean
    public Order order() {
        return new Order();
    }

    @Bean
    public InternalResourceViewResolver internalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/jsp/");
        resolver.setSuffix(".jsp");
        return resolver;
    }
}

index.jsp 中的链接:

<link rel="stylesheet" type="text/css" href="<c:url value="/resources/styles.css"/>">

Webapp structure

Answer 1

问题出在 WebAppConfig.java

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         id="WebApp_ID" version="3.1">
    <display-name>homework15</display-name>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <error-page>
        <error-code>404</error-code>
        <location>/jsp/errorPages/error404.jsp</location>
    </error-page>
    <error-page>
        <error-code>401</error-code>
        <location>/jsp/errorPages/error401.jsp</location>
    </error-page>
    <servlet>
        <servlet-name>hello-dispatcher</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring-web-config.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>hello-dispatcher</servlet-name>
        <url-pattern>/resources</url-pattern>
    </servlet-mapping>
</web-app>

我用以下文件替换了WebAppConfig.java

/src/main/webapp/WEB-INF/spring-web-config.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="org.training.ytaranau" />

    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/jsp/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>

    <mvc:resources mapping="/resources/**" location="/resources/"  cache-period="31556926"/>


    <mvc:annotation-driven />

</beans>

style.css、hibernate.cfg.xml 和 errorPageStyles.css 位于 /webapp/resources/ 目录中。

我在 error.jsp 中做了一些更改，以返回到 index.jsp 而不是 ../index.jsp。

WebAppConfig.java 中存在一些问题，我不知道什么问题，但已通过 spring-web-config.xml 解决。

此外，我还注释了 WebInitializer.java 类，因为不需要它。

这是更新后的元素:

https://drive.google.com/open?id=1Keg3tyu1abVb90GLe9tlnFW-1N3xCszn