恢复WelcomeVisitorVO类id字段

src/main/java/com/template/model/vo/WelcomeVisitorVO.java

@@ -15,6 +15,10 @@ public class WelcomeVisitorVO implements Serializable {
 
     private static final long serialVersionUID = 1L;
 
+    @ApiModelProperty(value = "主键ID")
+    @ExcelIgnore
+    private Integer id;
+
     @ApiModelProperty(value = "序号")
     @ExcelProperty("序号")
     private Integer num;