add 会议文件字段

jero-boot-module-system/src/main/java/com/jero/modules/system/entity/SysNotice.java

@@ -11,6 +11,7 @@ import lombok.experimental.Accessors;
 import org.springframework.format.annotation.DateTimeFormat;
 
 import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
 import java.io.Serializable;
 import java.util.Date;
 
@@ -47,6 +48,7 @@ public class SysNotice implements Serializable {
     @ApiModelProperty("公告内容")
     private String noticeContent;
     @ApiModelProperty("附件")
+    @Size(max = 300, message = "附件数量超出最大限制")
     private String noticeFile;
     @ApiModelProperty("状态（1-启用，0-禁用）")
     @NotNull(message = "状态不能为空")