Java超详细讲解WebMvcConfigurer拦截器

@Override
public void addCorsMappings(CorsRegistry registry) {
    super.addCorsMappings(registry);
    registry.addMapping("/cors
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    //调用父类的配置
    super.configureMessageConverters(converters);
    //创建fastJSON消息转换器
    FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
    //创建配置类
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    //修改配置返回内容的过滤
    fastJsonConfig.setSerializerFeatures(
            SerializerFeature.DisableCircularReferenceDetect,
            SerializerFeature.WriteMapNullValue,
            SerializerFeature.WriteNullStringAsEmpty
    );
    fastConverter.setFastJsonConfig(fastJsonConfig);
    //将fastjson添加到视图消息转换器列表内
    converters.add(fastConverter);
}