springBoot默认使用JSON转换与fastJson

>       1. package com.quxiao.config;

>  
>       2.  
>  
>       3. import com.fasterxml.jackson.annotation.JsonInclude;
>  
>       4. import com.fasterxml.jackson.databind.DeserializationFeature;
>  
>       5. import com.fasterxml.jackson.databind.ObjectMapper;
>  
>       6. import com.fasterxml.jackson.databind.SerializationFeature;
>  
>       7. import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
>  
>       8. import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
>  
>       9. import com.fasterxml.jackson.datatype.jsr310.deser.LocalDate