Springboot 实体中 Date类型传给前端序列化成时间字符串

在实体类Date属性上加上注解

public class ClassModel {private String classCode;private Long classId;private String className;private Long pClassId;private String note;private Long imObjNum;@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")private Date udTime;
}