springboot自定义Converter

给WebDataBinder里面放自己的Converter；

private static final class StringToNumber<T extends Number> implements Converter<String, T>

自定义 Converter

//1、WebMvcConfigurer定制化SpringMVC的功能
@Bean
public WebMvcConfigurer webMvcConfigurer(){
    return new WebMvcConfigurer() {
        @Override
        public void configurePathMatch(PathMatchConfigurer configurer) {
            UrlPathHelper urlPathHelper = new UrlPathHelper();
            // 不移除；后面的内容。矩阵变量功能就可以生效
            urlPathHelper.setRemoveSemicolonContent(false);
            configurer.setUrlPathHelper(urlPathHelper);
        }
 
        @Override
        public void addFormatters(FormatterRegistry registry) {
            registry.addConverter(new Converter<String, Pet>() {
 
                @Override
                public Pet convert(String source) {
                    // 啊猫,3
                    if(!StringUtils.isEmpty(source)){
                        Pet pet = new Pet();
                        String[] split = source.split(",");
                        pet.setName(split[0]);
                        pet.setAge(Integer.parseInt(split[1]));
                        return pet;
                    }
                    return null;
                }
            });
        }
    };
}