静态资源导入

WebMvcAutoConfiguration.java

  1. webjars不推荐

WebMvcAutoConfiguraion => EnableWebMvcConfiguraion => addResourceHandler
去classpath:/META-INF/resources/webjars/ 找对应的资源)

  1. spring.mvc.staticPathPattern> Resources.staticLocations > static(默认) > public
  2. @Override addResourceHandler ```java public class WebMvcAutoConfiguration { @Override public void addResourceHandlers(ResourceHandlerRegistry registry) {
    1.  if (!this.resourceProperties.isAddMappings()) {
    2.      logger.debug("Default resource handling disabled");
    3.      return;
    4.  }
    5.  addResourceHandler(registry, "/webjars/**", "classpath:/META-INF/resources/webjars/");
    6.  // staticPathPattern, staticLocations
    7.  addResourceHandler(registry, this.mvcProperties.getStaticPathPattern(), (registration) -> {
    8.      registration.addResourceLocations(this.resourceProperties.getStaticLocations());
    9.      if (this.servletContext != null) {
    10.          ServletContextResource resource = new ServletContextResource(this.servletContext, SERVLET_LOCATION);
    11.          registration.addResourceLocations(resource);
    12.      }
    13.  });
    } }

public static class Resources {

  1. private static final String[] CLASSPATH_RESOURCE_LOCATIONS = { 
  2.     "classpath:/META-INF/resources/",
  3.     "classpath:/resources/", 
  4.     "classpath:/static/", 
  5.     "classpath:/public/" 
  6. };
  8. // ...

}

  1. ```java
  2. public class MyWebMvcConfigurer implements WebMvcConfigurer {
  3.     // addResourceHandler、addResourceLocations配置静态资源映射
  4.     // 注意addResourceLocations的路径末尾必须有/
  5.     @Override
  6.     public void addResourceHandlers(ResourceHandlerRegistry registry) {
  8.         registry
  9.             .addResourceHandler("/file/**")
  10.             .addResourceLocations("file:/home/admin/picture/");
  11.     }
  12. }

image.png

首页

  1. private Optional<Resource> getWelcomePage() {
  2.     String[] locations = getResourceLocations(this.resourceProperties.getStaticLocations());
  3.     return Arrays.stream(locations).map(this::getIndexHtml).filter(this::isReadable).findFirst();
  4. }
  6. // 欢迎页就是一个location下的的 index.html 而已
  7. private Resource getIndexHtml(String location) {
  8.     return this.resourceLoader.getResource(location + "index.html");
  9. }

Thymeleaf

ThymeleafAutoconfiguration
不是重点，见idea tutorial和视频笔记

问题

  1. 地址栏必须输入.html后缀才能访问，例如[http://localhost:8080/login.html](http://localhost:8080/login.html)可以，[http://localhost:8080/login](http://localhost:8080/login.html)不可以，除非配置addViewController。

    1. @Configuration
    2. public class MyMvcConfig implements WebMvcConfigurer {
    4.  /**
    5.   * 替代默认的index首页
    6.   */
    7.  @Override
    8.  public void addViewControllers(ViewControllerRegistry registry) {
    10.      registry.addViewController("/").setViewName("index");
    11.      registry.addViewController("/index.html").setViewName("index");
    12.      registry.addViewController("/main.html").setViewName("dashboard");
    13.  }
    14. }