fastjson就是自定义json格式，字体大小等等

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    super.configureMessageConverters(converters);
    //定义一个convert转换消息的对象
    FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
    //添加fastjson配置信息
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    fastJsonConfig.setSerializerFeatures(PrettyFormat);
    //在convert中添加配置信息
    fastConverter.setFastJsonConfig(fastJsonConfig);
    //将fastConverter添加到converters中
    converters.add(fastConverter);
}

@JSONField(format = "yyyy-MM-dd HH:mm")
private Date cretedTime;

实例2：//不在页面显示该json数据

@JSONField(serialize = false)
private String remarsk;