创建FastJson配置类或者在application.class上实现WebMvcConfigurer接口实现configureMessageConverters方法
@Bean
FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
FastJsonConfig fastJsonConfig = new FastJsonConfig();
converter.setFastJsonConfig(fastJsonConfig);
return converter;
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.clear();
StringHttpMessageConverter converter = new StringHttpMessageConverter(Charset.forName("UTF-8"));
converters.add(converter);
converters.add(fastJsonHttpMessageConverter());
}