spring boot 什么注解可以让返回的json数据都为字符串

Question

列如：{ "id" : 24787807536939046, "th" : "TB1F1M2.jpg", "t" : 1, "r" : 0, "axId" : 24768209282400257, "insertTime" : 1476957265000, "lastUpdateTime" : 1476957265000, } 返回时使id，axId，insertTime，lastUpdateTime为String类型

Answer 1

@JsonSerialize(using = ToStringSerializer.class)
public Long axId: