spring boot 使用fastjson序列化

@Bean
public HttpMessageConverters fastJsonHttpMessageConverters() {
   FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
   FastJsonConfig fastJsonConfig = new FastJsonConfig();
   fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
   fastConverter.setFastJsonConfig(fastJsonConfig);
   return new HttpMessageConverters(fastConverter);
}