package com.wecom.robot.dto; import lombok.Data; import javax.validation.constraints.NotBlank; import javax.validation.constraints.Size; @Data public class SendMessageRequest { @NotBlank(message = "消息内容不能为空") @Size(min = 1, max = 4096, message = "消息内容长度必须在1-4096之间") private String content; private String msgType; }