springboot源码分析之静态资源

springboot源码分析之静态资源

导入依赖

<dependency>
    <groupId>org.webjars</groupId>
    <artifactId>jquery</artifactId>
    <version>3.5.1</version>
</dependency>

进入WebMvcAutoConfiguration(自动装配的配置文件)

找到addResourceHandlers

!this.resourceProperties.isAddMappings()	是否自定义了配置(如果自定义了配置,则默认的配置失效直接返回)
this.mvcProperties.getStaticPathPattern();	得来静态资源路径(private String staticPathPattern = “/**”😉
addResourceLocations()	加上()里的资源地址
getResourceLocations(this.resourceProperties.getStaticLocations()	获得资源resourceProperties配置;类的StaticLocations地址 private static final String[] CLASSPATH_RESOURCE_LOCATIONS = { “classpath:/META-INF/resources/”, “classpath:/resources/”, “classpath:/static/”, “classpath:/public/” };

结论:因此静态资源可以放的位置为:("/**", classpath:/META-INF/resources/, classpath:/resources/, classpath:/static/, classpath:/public/)-----其中classpath:/META-INF/resources/就是webjars里的资源

优先级:

classpath:/resources/> classpath:/static/>classpath:/public/>"/**",