diff --git a/common/common-online/src/main/java/apelet/common/online/util/WidgetFieldTypeMapping.java b/common/common-online/src/main/java/apelet/common/online/util/WidgetFieldTypeMapping.java
new file mode 100644
index 0000000..50d6801
--- /dev/null
+++ b/common/common-online/src/main/java/apelet/common/online/util/WidgetFieldTypeMapping.java
@@ -0,0 +1,87 @@
+package apelet.common.online.util;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class WidgetFieldTypeMapping {
+
+    private WidgetFieldTypeMapping() {
+    }
+
+    private static final Map<Integer, String> WIDGET_TO_FIELD_TYPE = new HashMap<>();
+    private static final Map<Integer, Integer> DEFAULT_LENGTH = new HashMap<>();
+
+    static {
+        // 文本输入框 → varchar
+        WIDGET_TO_FIELD_TYPE.put(1, "0");
+        DEFAULT_LENGTH.put(1, 255);
+        // 数字输入框 → int
+        WIDGET_TO_FIELD_TYPE.put(3, "1");
+        // 开关组件 → int
+        WIDGET_TO_FIELD_TYPE.put(5, "1");
+        // 滑块组件 → decimal
+        WIDGET_TO_FIELD_TYPE.put(6, "4");
+        // 单选组件 → varchar
+        WIDGET_TO_FIELD_TYPE.put(7, "0");
+        DEFAULT_LENGTH.put(7, 255);
+        // 复选框 → varchar
+        WIDGET_TO_FIELD_TYPE.put(8, "0");
+        DEFAULT_LENGTH.put(8, 255);
+        // 下拉选择框 → varchar
+        WIDGET_TO_FIELD_TYPE.put(10, "0");
+        DEFAULT_LENGTH.put(10, 255);
+        // 级联选择框 → varchar
+        WIDGET_TO_FIELD_TYPE.put(12, "0");
+        DEFAULT_LENGTH.put(12, 255);
+        // 树形选择 → varchar
+        WIDGET_TO_FIELD_TYPE.put(13, "0");
+        DEFAULT_LENGTH.put(13, 255);
+        // 评分组件 → int
+        WIDGET_TO_FIELD_TYPE.put(14, "1");
+        DEFAULT_LENGTH.put(14, 5);
+        // 日期选择框 → datetime
+        WIDGET_TO_FIELD_TYPE.put(20, "3");
+        // 颜色选择 → varchar
+        WIDGET_TO_FIELD_TYPE.put(30, "0");
+        DEFAULT_LENGTH.put(30, 50);
+        // 附件上传 → varchar
+        WIDGET_TO_FIELD_TYPE.put(31, "0");
+        DEFAULT_LENGTH.put(31, 255);
+        // 图片上传 → varchar
+        WIDGET_TO_FIELD_TYPE.put(653, "0");
+        DEFAULT_LENGTH.put(653, 255);
+        // 富文本编辑 → varchar(2000)
+        WIDGET_TO_FIELD_TYPE.put(32, "0");
+        DEFAULT_LENGTH.put(32, 2000);
+        // MD编辑器 → varchar(2000)
+        WIDGET_TO_FIELD_TYPE.put(760, "0");
+        DEFAULT_LENGTH.put(760, 2000);
+        // 用户选择 → bigint
+        WIDGET_TO_FIELD_TYPE.put(400, "2");
+        // 部门选择 → bigint
+        WIDGET_TO_FIELD_TYPE.put(401, "2");
+        // 关联选择 → bigint
+        WIDGET_TO_FIELD_TYPE.put(402, "2");
+        // 时间选择器 → datetime
+        WIDGET_TO_FIELD_TYPE.put(652, "3");
+        // 文件上传 → varchar
+        WIDGET_TO_FIELD_TYPE.put(750, "0");
+        DEFAULT_LENGTH.put(750, 255);
+    }
+
+    public static String getFieldTypeId(Integer widgetType) {
+        String type = WIDGET_TO_FIELD_TYPE.get(widgetType);
+        if (type == null) {
+            throw new IllegalArgumentException("不支持的控件类型: " + widgetType);
+        }
+        return type;
+    }
+
+    public static Integer getDefaultLength(Integer widgetType) {
+        return DEFAULT_LENGTH.get(widgetType);
+    }
+
+    public static boolean isDataWidget(Integer widgetType) {
+        return WIDGET_TO_FIELD_TYPE.containsKey(widgetType);
+    }
+}