WebConfig.java 文件源码

@Bean
public WebMvcConfigurerAdapter forwardToIndex() {
    return new WebMvcConfigurerAdapter() {
        @Override
        public void addViewControllers(ViewControllerRegistry registry) {
            // forward requests to /admin and /user to their index.html
            registry.addViewController("/**").setViewName(
                    "forward:/index.html");
        }
    };
}