LocalDateTime json格式化

参考https://www.cnblogs.com/xiaozhang9/p/jackson.html?utm_source=itdadao&utm_medium=referral

<dependency>
   <groupId>com.fasterxml.jackson.datatype</groupId>
   <artifactId>jackson-datatype-jsr310</artifactId>
</dependency>

spring.jackson.serialization.write_dates_as_timestamps=false

@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
@Column(name="ADDTIME")
private LocalDateTime addTime;