feat(ext-data): 新增扩展数据支持 URL 创建并调整设置弹窗 tab (#64)

- 新建扩展数据弹窗加入 URL/文件/手动 三种接入方式, URL 模式支持探测字段、预览、保存拉取配置并可选立即导入或定时拉取
- 后端新增 /api/ext-data/detect-url 探测接口, 自动识别 JSON 行数组路径、字段类型与 symbol/code 候选列
- 抽出 infer_fields_from_df / detect_symbol_candidates / apply_config_mapping 公共逻辑, 文件上传与 URL 探测复用
- 拉取写入支持仅含 code 的数据, 按 code_map 自动生成标准 symbol
- 设置弹窗 tab 顺序调整为 拉取/推送/上传, 默认显示拉取

backend/app/api/ext_data.py

@@ -19,9 +19,11 @@ from app.services.ext_data import (
     ExtConfigStore,
     ExtField,
     PullConfig,
+    apply_config_mapping,
+    detect_symbol_candidates,
     ensure_utf8_csv,
     fix_symbol_format,
-    normalize_symbol,
+    infer_fields_from_df,
     parse_upload_file,
     write_ext_parquet,
     rows_to_parquet,
@@ -78,6 +80,16 @@ class PullConfigReq(BaseModel):
     enabled: bool = False
 
 
+class DetectUrlReq(BaseModel):
+    """URL 探测请求，不依赖已存在的扩展配置。"""
+    url: str = Field(..., min_length=1)
+    method: str = "GET"
+    headers: dict[str, str] | None = None
+    body: str | None = None
+    response_path: str = ""
+    field_map: dict[str, str] | None = None
+
+
 # ---------------------------------------------------------------------------
 # 辅助
 # ---------------------------------------------------------------------------
@@ -95,52 +107,7 @@ def _data_dir(request: Request) -> Path:
 # ---------------------------------------------------------------------------
 
 def _apply_mapping(df: pl.DataFrame, config: ExtConfig, data_dir: Path) -> pl.DataFrame:
-    """根据 config 的 symbol_map / code_map 自动生成 symbol 和 code 列。
-    
-    执行顺序：先 mapped（从文件列复制），再 computed（从已生成的列计算）。
-    """
-    sm = config.symbol_map or {}
-    cm = config.code_map or {}
-
-    # --- 第一步：mapped 类型，直接从文件列映射 ---
-    if sm.get("type") == "mapped" and sm["col"] in df.columns:
-        df = df.with_columns(df[sm["col"]].cast(pl.Utf8).alias("symbol"))
-
-    if cm.get("type") == "mapped" and cm["col"] in df.columns:
-        df = df.with_columns(df[cm["col"]].cast(pl.Utf8).alias("code"))
-
-    # --- 第二步：computed 类型，从已生成的列计算 ---
-    if "symbol" not in df.columns and sm.get("type") == "computed":
-        if sm.get("from") == "code" and "code" in df.columns:
-            # code → symbol: 000001 → 000001.SZ
-            from app.services.ext_data import build_code_lookup
-            lookup = build_code_lookup(data_dir)
-            df = df.with_columns(normalize_symbol(df["code"].cast(pl.Utf8), lookup).alias("symbol"))
-
-    if "code" not in df.columns and cm.get("type") == "computed":
-        if cm.get("from") == "symbol" and "symbol" in df.columns:
-            # symbol → code: 000001.SZ → 000001
-            df = df.with_columns(
-                df["symbol"].cast(pl.Utf8).str.split(".").list.first().alias("code")
-            )
-
-    # --- 兜底：如果只有一个，自动生成另一个 ---
-    if "symbol" in df.columns and "code" not in df.columns:
-        df = df.with_columns(
-            df["symbol"].cast(pl.Utf8).str.split(".").list.first().alias("code")
-        )
-    elif "code" in df.columns and "symbol" not in df.columns:
-        from app.services.ext_data import build_code_lookup
-        lookup = build_code_lookup(data_dir)
-        df = df.with_columns(normalize_symbol(df["code"].cast(pl.Utf8), lookup).alias("symbol"))
-
-    # 标准化 symbol 列
-    if "symbol" in df.columns:
-        from app.services.ext_data import build_code_lookup
-        lookup = build_code_lookup(data_dir)
-        df = df.with_columns(normalize_symbol(df["symbol"].cast(pl.Utf8), lookup))
-
-    return df
+    return apply_config_mapping(df, config, data_dir)
 
 
 def _clean_col_names(df: pl.DataFrame) -> pl.DataFrame:
@@ -681,16 +648,6 @@ def fix_symbol(request: Request, config_id: str):
 # Schema 发现
 # ---------------------------------------------------------------------------
 
-_POLARS_TYPE_MAP = {
-    "Int64": "int", "Int32": "int", "Int16": "int", "Int8": "int",
-    "UInt64": "int", "UInt32": "int", "UInt16": "int", "UInt8": "int",
-    "Float64": "float", "Float32": "float",
-    "Boolean": "bool",
-    "Utf8": "string", "String": "string",
-    "Date": "string", "Datetime": "string", "Duration": "string",
-    "Categorical": "string",
-}
-
 
 @router.post("/detect-fields")
 async def detect_fields(
@@ -729,44 +686,105 @@ async def detect_fields(
 
     # 清洗列名：去掉括号内的时间戳等信息
     df = _clean_col_names(df)
-
-    # 构建字段列表
-    fields = []
-    for col_name in df.columns:
-        pl_type = df[col_name].dtype
-        dtype = _POLARS_TYPE_MAP.get(str(pl_type.base_type()), "string")
-        fields.append({"name": col_name, "dtype": dtype, "label": col_name})
-
-    # --- 分别检测 symbol 候选 (000001.SZ) 和 code 候选 (6位纯数字) ---
-    import re
-    _CODE_PAT = re.compile(r"^\d{6}$")
-    _SYMBOL_PAT = re.compile(r"^\d{6}\.[A-Z]{2}$")
-
-    symbol_candidates: list[str] = []   # 数据匹配 000001.SZ 格式
-    code_candidates: list[str] = []     # 数据匹配 000001 格式
-
-    for col in df.columns:
-        col_data = df[col].cast(pl.Utf8).drop_nulls()
-        if len(col_data) == 0:
-            continue
-        sample = col_data.head(200).to_list()
-        sym_hits = sum(1 for v in sample if _SYMBOL_PAT.match(str(v).strip()))
-        code_hits = sum(1 for v in sample if _CODE_PAT.match(str(v).strip()))
-        total = len(sample)
-        if total > 0:
-            if sym_hits / total > 0.5:
-                symbol_candidates.append(col)
-            elif code_hits / total > 0.5:
-                code_candidates.append(col)
+    symbol_candidates, code_candidates = detect_symbol_candidates(df)
 
     return {
-        "fields": fields,
+        "fields": infer_fields_from_df(df),
         "rows": len(df),
         "symbol_candidates": symbol_candidates,
         "code_candidates": code_candidates,
     }
 
 
+def _find_row_arrays(data, prefix: str = "", limit: int = 8) -> list[str]:
+    """自动寻找 JSON 中可能的数据数组路径。"""
+    found: list[str] = []
+
+    def walk(value, path: str) -> None:
+        if len(found) >= limit:
+            return
+        if isinstance(value, list):
+            if value and isinstance(value[0], dict):
+                found.append(path)
+            elif value and isinstance(value[0], list):
+                for i, item in enumerate(value[:3]):
+                    walk(item, f"{path}.{i}" if path else str(i))
+        elif isinstance(value, dict):
+            for key, child in value.items():
+                next_path = f"{path}.{key}" if path else key
+                walk(child, next_path)
+
+    walk(data, prefix)
+    return found
+
+
+@router.post("/detect-url")
+async def detect_url(body: DetectUrlReq):
+    """请求外部 URL，自动检测 JSON 行数据的字段和标的代码列。"""
+    from app.services.ext_pull import _extract_rows, _apply_field_map
+    import httpx
+
+    method = body.method.upper()
+    if method not in ("GET", "POST"):
+        raise HTTPException(400, "仅支持 GET / POST")
+
+    try:
+        async with httpx.AsyncClient(timeout=30, follow_redirects=True) as client:
+            headers = body.headers or {}
+            kwargs: dict = {"headers": headers}
+            if method == "POST" and body.body:
+                kwargs["content"] = body.body
+                if "content-type" not in {k.lower() for k in headers}:
+                    kwargs["headers"]["Content-Type"] = "application/json"
+            resp = await client.request(method, body.url, **kwargs)
+            resp.raise_for_status()
+            data = resp.json()
+    except Exception as e:
+        raise HTTPException(400, f"URL 请求失败: {e}") from e
+
+    path_candidates = _find_row_arrays(data)
+    response_path = body.response_path
+    if not response_path:
+        if not path_candidates:
+            raise HTTPException(400, "未在响应中找到对象数组，请填写响应数据路径")
+        response_path = path_candidates[0]
+
+    try:
+        rows = _extract_rows(data, response_path)
+        rows = _apply_field_map(rows, body.field_map or {})
+    except Exception as e:
+        raise HTTPException(400, f"响应解析失败: {e}") from e
+
+    if not rows:
+        raise HTTPException(400, "提取到的行数为 0")
+    if not all(isinstance(row, dict) for row in rows[:200]):
+        raise HTTPException(400, "响应数据数组中的元素必须是对象")
+
+    sample_rows = rows[: min(len(rows), 500)]
+    try:
+        df = pl.DataFrame(sample_rows)
+    except Exception as e:
+        raise HTTPException(400, f"样例数据解析失败: {e}") from e
+
+    df = _clean_col_names(df)
+    symbol_candidates, code_candidates = detect_symbol_candidates(df)
+    preview = [
+        {k: _safe_json_value(v) for k, v in row.items()}
+        for row in df.head(10).to_dicts()
+    ]
+
+    return {
+        "status": "ok",
+        "total_rows": len(rows),
+        "response_path": response_path,
+        "response_path_candidates": path_candidates,
+        "fields": infer_fields_from_df(df),
+        "symbol_candidates": symbol_candidates,
+        "code_candidates": code_candidates,
+        "preview": preview,
+    }
+
+
 @router.get("/schema/{config_id}")
 def discover_schema(request: Request, config_id: str):
     """发现扩展数据的实际 Parquet schema（基于已有数据）。"""

backend/app/services/ext_data.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 
 import json
 import logging
+import re
 from datetime import date, datetime
 from pathlib import Path
 from typing import Literal
@@ -266,6 +267,54 @@ _POLARS_DTYPE_MAP = {
     "bool": pl.Boolean,
 }
 
+_POLARS_TYPE_MAP = {
+    "Int64": "int", "Int32": "int", "Int16": "int", "Int8": "int",
+    "UInt64": "int", "UInt32": "int", "UInt16": "int", "UInt8": "int",
+    "Float64": "float", "Float32": "float",
+    "Boolean": "bool",
+    "Utf8": "string", "String": "string",
+    "Date": "string", "Datetime": "string", "Duration": "string",
+    "Categorical": "string",
+}
+
+_CODE_PAT = re.compile(r"^\d{6}$")
+_SYMBOL_PAT = re.compile(r"^\d{6}\.[A-Z]{2}$")
+
+
+def infer_fields_from_df(df: pl.DataFrame) -> list[dict]:
+    """从 DataFrame 推断扩展字段定义。"""
+    fields = []
+    for col_name in df.columns:
+        pl_type = df[col_name].dtype
+        dtype = _POLARS_TYPE_MAP.get(str(pl_type.base_type()), "string")
+        fields.append({"name": col_name, "dtype": dtype, "label": col_name})
+    return fields
+
+
+def detect_symbol_candidates(df: pl.DataFrame) -> tuple[list[str], list[str]]:
+    """识别 symbol/code 候选列。"""
+    symbol_candidates: list[str] = []
+    code_candidates: list[str] = []
+
+    for col in df.columns:
+        try:
+            col_data = df[col].cast(pl.Utf8).drop_nulls()
+        except Exception:
+            continue
+        if len(col_data) == 0:
+            continue
+        sample = col_data.head(200).to_list()
+        sym_hits = sum(1 for v in sample if _SYMBOL_PAT.match(str(v).strip()))
+        code_hits = sum(1 for v in sample if _CODE_PAT.match(str(v).strip()))
+        total = len(sample)
+        if total > 0:
+            if sym_hits / total > 0.5:
+                symbol_candidates.append(col)
+            elif code_hits / total > 0.5:
+                code_candidates.append(col)
+
+    return symbol_candidates, code_candidates
+
 
 def build_code_lookup(data_dir: Path) -> dict[str, str]:
     """从 instruments 维表构建 code → symbol 映射。"""
@@ -309,6 +358,43 @@ def normalize_symbol(series: pl.Series, lookup: dict[str, str] | None = None) ->
     return series.map_elements(_fix_one, return_dtype=pl.Utf8)
 
 
+def apply_config_mapping(df: pl.DataFrame, config: ExtConfig, data_dir: Path) -> pl.DataFrame:
+    """根据 config 的 symbol_map / code_map 自动生成 symbol 和 code 列。"""
+    sm = config.symbol_map or {}
+    cm = config.code_map or {}
+
+    if sm.get("type") == "mapped" and sm["col"] in df.columns:
+        df = df.with_columns(df[sm["col"]].cast(pl.Utf8).alias("symbol"))
+
+    if cm.get("type") == "mapped" and cm["col"] in df.columns:
+        df = df.with_columns(df[cm["col"]].cast(pl.Utf8).alias("code"))
+
+    if "symbol" not in df.columns and sm.get("type") == "computed":
+        if sm.get("from") == "code" and "code" in df.columns:
+            lookup = build_code_lookup(data_dir)
+            df = df.with_columns(normalize_symbol(df["code"].cast(pl.Utf8), lookup).alias("symbol"))
+
+    if "code" not in df.columns and cm.get("type") == "computed":
+        if cm.get("from") == "symbol" and "symbol" in df.columns:
+            df = df.with_columns(
+                df["symbol"].cast(pl.Utf8).str.split(".").list.first().alias("code")
+            )
+
+    if "symbol" in df.columns and "code" not in df.columns:
+        df = df.with_columns(
+            df["symbol"].cast(pl.Utf8).str.split(".").list.first().alias("code")
+        )
+    elif "code" in df.columns and "symbol" not in df.columns:
+        lookup = build_code_lookup(data_dir)
+        df = df.with_columns(normalize_symbol(df["code"].cast(pl.Utf8), lookup).alias("symbol"))
+
+    if "symbol" in df.columns:
+        lookup = build_code_lookup(data_dir)
+        df = df.with_columns(normalize_symbol(df["symbol"].cast(pl.Utf8), lookup))
+
+    return df
+
+
 def ensure_utf8_csv(file_path: Path) -> Path:
     """确保 CSV 文件以 UTF-8 编码可读，非 UTF-8（如 GBK/GB18030）则转换。
 
@@ -516,6 +602,7 @@ def rows_to_parquet(
         写入行数。
     """
     df = pl.DataFrame(rows)
+    df = apply_config_mapping(df, config, data_dir)
     if "symbol" in df.columns:
         df = df.with_columns(pl.col("symbol").cast(pl.Utf8))
     return write_ext_parquet(df, config, data_dir, snapshot_date=snapshot_date)

backend/app/services/ext_pull.py

@@ -133,9 +133,15 @@ async def fetch_and_ingest(
     # 字段映射
     rows = _apply_field_map(rows, pull.field_map)
 
-    # 校验 symbol 列
-    if rows and "symbol" not in rows[0]:
-        raise ValueError("数据行中缺少 symbol 字段，请配置 field_map 映射")
+    # 校验可关联标的的字段：直接 symbol/code，或配置里声明的映射源列。
+    row_keys = set(rows[0]) if rows else set()
+    mapped_cols = {
+        m.get("col")
+        for m in (config.symbol_map or {}, config.code_map or {})
+        if m.get("type") == "mapped" and m.get("col")
+    }
+    if rows and not ({"symbol", "code"} & row_keys or mapped_cols & row_keys):
+        raise ValueError("数据行中缺少 symbol/code 字段，请配置字段映射或标的映射")
 
     # 写入
     snap = date.today()

frontend/src/components/ext-data/CreateExtDialog.tsx

@@ -1,17 +1,38 @@
 import { useRef, useState } from 'react'
 import { useMutation, useQueryClient } from '@tanstack/react-query'
 import { motion } from 'framer-motion'
-import { X, Loader2, Upload, Plus, AlertCircle, Tag, Clock } from 'lucide-react'
-import { api, type ExtDataField } from '@/lib/api'
+import {
+  X,
+  Loader2,
+  Upload,
+  Plus,
+  AlertCircle,
+  Tag,
+  Clock,
+  Link2,
+  FileText,
+  Keyboard,
+  RefreshCw,
+} from 'lucide-react'
+import { api, type ExtDataDetectUrlResult, type ExtDataField } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
 
+type SourceMode = 'url' | 'file' | 'manual'
+
+type MappingChoice = {
+  fields: { name: string; dtype: string; label: string }[]
+  need: 'symbol' | 'code' | 'both'
+}
+
 export function CreateExtDialog({ onClose }: { onClose: () => void }) {
   const qc = useQueryClient()
+  const [sourceMode, setSourceMode] = useState<SourceMode>('url')
   const [id, setId] = useState('')
   const [label, setLabel] = useState('')
   const [description, setDescription] = useState('')
   const [mode, setMode] = useState<'snapshot' | 'timeseries'>('snapshot')
   const [fields, setFields] = useState<ExtDataField[]>([])
+  const [detectedSourceNames, setDetectedSourceNames] = useState<string[]>([])
   const [error, setError] = useState('')
   const detectFileRef = useRef<HTMLInputElement>(null)
   const [detecting, setDetecting] = useState(false)
@@ -19,12 +40,74 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
   const [symbolMap, setSymbolMap] = useState<Record<string, string>>({})
   const [codeMap, setCodeMap] = useState<Record<string, string>>({})
   const [matchStatus, setMatchStatus] = useState<'none' | 'partial' | 'full'>('none')
-  const [selectMapping, setSelectMapping] = useState<{ fields: { name: string; dtype: string; label: string }[]; need: 'symbol' | 'code' | 'both' } | null>(null)
+  const [selectMapping, setSelectMapping] = useState<MappingChoice | null>(null)
+
+  const [url, setUrl] = useState('')
+  const [method, setMethod] = useState<'GET' | 'POST'>('GET')
+  const [headerStr, setHeaderStr] = useState('')
+  const [body, setBody] = useState('')
+  const [responsePath, setResponsePath] = useState('')
+  const [fieldMapStr, setFieldMapStr] = useState('')
+  const [schedule, setSchedule] = useState(1440)
+  const [savePull, setSavePull] = useState(true)
+  const [importNow, setImportNow] = useState(true)
+  const [enablePull, setEnablePull] = useState(false)
+  const [urlPreview, setUrlPreview] = useState<ExtDataDetectUrlResult | null>(null)
+
+  const userFields = fields.filter(f => f.name !== 'symbol' && f.name !== 'code')
+
+  const parseJsonObject = (str: string, labelText: string): Record<string, string> | undefined => {
+    if (!str.trim()) return undefined
+    try {
+      const parsed = JSON.parse(str)
+      if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
+        throw new Error('not object')
+      }
+      return Object.fromEntries(
+        Object.entries(parsed).map(([k, v]) => [k, String(v)]),
+      )
+    } catch {
+      throw new Error(`${labelText} 不是有效 JSON 对象`)
+    }
+  }
+
+  const buildPullFieldMap = () => {
+    const base = parseJsonObject(fieldMapStr, '字段映射') ?? {}
+    const finalMap: Record<string, string> = { ...base }
+
+    fields.forEach((field, index) => {
+      const source = detectedSourceNames[index]
+      const target = field.name.trim()
+      if (!source || !target || source === target) return
+
+      const upstreamKeys = Object.entries(base)
+        .filter(([, mapped]) => mapped === source)
+        .map(([raw]) => raw)
+
+      if (upstreamKeys.length) {
+        upstreamKeys.forEach((raw) => { finalMap[raw] = target })
+      } else {
+        finalMap[source] = target
+      }
+    })
+
+    return finalMap
+  }
+
+  const mapSubmitCol = (map: Record<string, string>, fieldMap: Record<string, string>) => {
+    if (sourceMode !== 'url' || map.type !== 'mapped' || !map.col) return map
+    const mappedCol = fieldMap[map.col] ?? map.col
+    return { ...map, col: mappedCol }
+  }
 
   const create = useMutation({
-    mutationFn: () => {
+    mutationFn: async () => {
       const userF = fields.filter((f) => f.name.trim() && f.name !== 'symbol' && f.name !== 'code')
-      return api.extDataCreate({
+      const pullFieldMap = sourceMode === 'url' ? buildPullFieldMap() : {}
+      const submittedSymbolMap = mapSubmitCol(symbolMap, pullFieldMap)
+      const submittedCodeMap = mapSubmitCol(codeMap, pullFieldMap)
+
+      const config = await api.extDataCreate({
         id,
         label,
         mode,
@@ -34,27 +117,60 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
           ...userF,
         ],
         description: description.trim() || undefined,
-        symbol_map: symbolMap,
-        code_map: codeMap,
+        symbol_map: submittedSymbolMap,
+        code_map: submittedCodeMap,
       })
+
+      if (sourceMode === 'url' && (savePull || importNow || enablePull)) {
+        const headers = parseJsonObject(headerStr, 'Headers')
+        const finalFieldMap = Object.keys(pullFieldMap).length ? pullFieldMap : undefined
+        await api.extDataPullConfig(config.id, {
+          url: url.trim(),
+          method,
+          headers,
+          body: method === 'POST' && body.trim() ? body : undefined,
+          response_path: responsePath.trim() || urlPreview?.response_path || '',
+          field_map: finalFieldMap,
+          schedule_minutes: schedule,
+          enabled: enablePull,
+        })
+
+        if (importNow) {
+          await api.extDataPullRun(config.id)
+        }
+      }
+
+      return config
     },
     onSuccess: () => {
       qc.invalidateQueries({ queryKey: QK.extData })
+      qc.invalidateQueries({ queryKey: QK.dataStatus })
       onClose()
     },
-    onError: (err) => setError(String(err)),
+    onError: (err) => setError(err instanceof Error ? err.message : String(err)),
   })
 
-  const addField = () =>
+  const addField = () => {
     setFields([...fields, { name: '', dtype: 'string', label: '' }])
+    setDetectedSourceNames([...detectedSourceNames, ''])
+  }
 
-  const removeField = (i: number) =>
+  const removeField = (i: number) => {
     setFields(fields.filter((_, idx) => idx !== i))
+    setDetectedSourceNames(detectedSourceNames.filter((_, idx) => idx !== i))
+  }
 
-  const updateField = (i: number, key: keyof ExtDataField, val: string) =>
+  const updateField = (i: number, key: keyof ExtDataField, val: string) => {
     setFields(fields.map((f, idx) => (idx === i ? { ...f, [key]: val } : f)))
+  }
 
-  const valid = id.trim() && label.trim() && fields.some((f) => f.name.trim()) && matchStatus !== 'none'
+  const valid = Boolean(
+    id.trim()
+      && label.trim()
+      && fields.some((f) => f.name.trim())
+      && matchStatus !== 'none'
+      && (sourceMode !== 'url' || url.trim()),
+  )
 
   const processDetection = (
     detected: { name: string; dtype: string; label: string }[],
@@ -65,6 +181,8 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
     let cm: Record<string, string> = {}
     let status: 'none' | 'partial' | 'full' = 'none'
 
+    setDetectedSourceNames(detected.map(f => f.name))
+
     if (symCands.length === 1 && codeCands.length === 1) {
       sm = { type: 'mapped', col: symCands[0] }
       cm = { type: 'mapped', col: codeCands[0] }
@@ -97,11 +215,12 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
     setSelectMapping(null)
   }
 
-  const handleDetectFile = (e: React.ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0]
-    if (!file) return
-    e.target.value = ''
-    setDetecting(true); setError(''); setSelectMapping(null)
+  const detectFile = (file: File) => {
+    setSourceMode('file')
+    setDetecting(true)
+    setError('')
+    setSelectMapping(null)
+    setUrlPreview(null)
     api.extDataDetectFields(file)
       .then((res) => {
         processDetection(res.fields, res.symbol_candidates, res.code_candidates)
@@ -110,7 +229,82 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
       .finally(() => setDetecting(false))
   }
 
-  const userFields = fields.filter(f => f.name !== 'symbol' && f.name !== 'code')
+  const handleDetectFile = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0]
+    if (!file) return
+    e.target.value = ''
+    detectFile(file)
+  }
+
+  const handleDetectUrl = () => {
+    if (!url.trim()) {
+      setError('请先填写 URL')
+      return
+    }
+    setDetecting(true)
+    setError('')
+    setSelectMapping(null)
+    setUrlPreview(null)
+
+    let headers: Record<string, string> | undefined
+    let fieldMap: Record<string, string> | undefined
+    try {
+      headers = parseJsonObject(headerStr, 'Headers')
+      fieldMap = parseJsonObject(fieldMapStr, '字段映射')
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err))
+      setDetecting(false)
+      return
+    }
+
+    api.extDataDetectUrl({
+      url: url.trim(),
+      method,
+      headers,
+      body: method === 'POST' && body.trim() ? body : undefined,
+      response_path: responsePath.trim() || undefined,
+      field_map: fieldMap,
+    })
+      .then((res) => {
+        setUrlPreview(res)
+        setResponsePath(res.response_path || responsePath)
+        processDetection(res.fields, res.symbol_candidates, res.code_candidates)
+      })
+      .catch((err) => setError(String(err)))
+      .finally(() => setDetecting(false))
+  }
+
+  const selectSource = (next: SourceMode) => {
+    if (next !== sourceMode) {
+      setFields([])
+      setDetectedSourceNames([])
+      setSymbolMap({})
+      setCodeMap({})
+      setMatchStatus('none')
+      setSelectMapping(null)
+      setUrlPreview(null)
+    }
+    setSourceMode(next)
+    setError('')
+    if (next === 'manual') {
+      setSymbolMap({ type: 'mapped', col: 'symbol' })
+      setCodeMap({ type: 'computed', from: 'symbol', method: 'strip_exchange' })
+      setMatchStatus('full')
+    }
+  }
+
+  const applyManualMapping = (fieldName: string) => {
+    const sm = { type: 'mapped', col: fieldName }
+    const cm = { type: 'computed', from: 'symbol', method: 'strip_exchange' }
+    setSymbolMap(sm)
+    setCodeMap(cm)
+    setMatchStatus('full')
+    setSelectMapping(null)
+  }
+
+  const previewColumns = urlPreview?.preview?.[0]
+    ? Object.keys(urlPreview.preview[0]).slice(0, 5)
+    : []
 
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center">
@@ -120,14 +314,14 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
         animate={{ opacity: 1, scale: 1, y: 0 }}
         exit={{ opacity: 0, scale: 0.97, y: 8 }}
         transition={{ duration: 0.2, ease: [0.16, 1, 0.3, 1] }}
-        className="relative rounded-2xl border border-border bg-surface shadow-2xl mx-4 w-full max-w-xl max-h-[85vh] flex flex-col overflow-hidden"
+        className="relative rounded-2xl border border-border bg-surface shadow-2xl mx-4 w-full max-w-2xl max-h-[88vh] flex flex-col overflow-hidden"
       >
         <div className="px-6 pt-5 pb-4">
           <div className="flex items-center justify-between">
             <div>
               <h3 className="text-base font-semibold text-foreground">新增扩展数据</h3>
               <p className="text-[11px] mt-1 inline-flex items-center gap-1 bg-amber-500/10 text-amber-400 px-2 py-0.5 rounded-md font-medium">
-                接入自有数据，与标的自动关联（第三方接口或CSV/Excel），支持概念、人气、资金流、舆情、研报评分标签等场景
+                接入自有数据，与标的自动关联（第三方接口或 CSV/Excel），支持概念、人气、资金流、舆情、研报评分标签等场景
               </p>
             </div>
             <button onClick={onClose} className="p-1 rounded-lg hover:bg-elevated text-secondary transition-colors">
@@ -137,6 +331,31 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
         </div>
 
         <div className="flex-1 overflow-y-auto px-6 pb-6 space-y-5">
+          <div>
+            <div className="text-[11px] font-medium text-secondary mb-2">接入方式</div>
+            <div className="grid grid-cols-3 gap-2 rounded-xl bg-elevated/40 p-1">
+              {([
+                ['url', 'URL', Link2],
+                ['file', '文件', FileText],
+                ['manual', '手动', Keyboard],
+              ] as const).map(([key, text, Icon]) => {
+                const active = sourceMode === key
+                return (
+                  <button
+                    key={key}
+                    onClick={() => selectSource(key)}
+                    className={`inline-flex items-center justify-center gap-1.5 rounded-lg px-3 py-2 text-xs font-medium transition-colors ${
+                      active ? 'bg-surface text-foreground shadow-sm' : 'text-muted hover:text-secondary'
+                    }`}
+                  >
+                    <Icon className="h-3.5 w-3.5" />
+                    {text}
+                  </button>
+                )
+              })}
+            </div>
+          </div>
+
           <div>
             <div className="text-[11px] font-medium text-secondary mb-2">数据类型</div>
             <div className="grid grid-cols-2 gap-2">
@@ -204,8 +423,151 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
             />
           </div>
 
+          {sourceMode === 'url' && (
+            <div className="rounded-xl border border-border/60 bg-elevated/20 p-3 space-y-3">
+              <div className="flex items-center gap-1.5 text-[11px] font-medium text-secondary">
+                <Link2 className="h-3.5 w-3.5 text-muted" />
+                <span>URL 请求配置</span>
+              </div>
+              <div className="flex gap-2">
+                <select
+                  value={method}
+                  onChange={(e) => setMethod(e.target.value as 'GET' | 'POST')}
+                  className="h-8 shrink-0 rounded-lg border border-border bg-base px-2 text-[11px] text-foreground"
+                >
+                  <option value="GET">GET</option>
+                  <option value="POST">POST</option>
+                </select>
+                <input
+                  value={url}
+                  onChange={(e) => setUrl(e.target.value)}
+                  placeholder="https://api.example.com/data"
+                  className="h-8 flex-1 min-w-0 rounded-lg border border-border bg-base px-3 text-[11px] font-mono text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/50"
+                />
+                <button
+                  onClick={handleDetectUrl}
+                  disabled={detecting || !url.trim()}
+                  className="h-8 inline-flex items-center gap-1.5 rounded-lg bg-accent px-3 text-xs font-medium text-base hover:bg-accent/90 disabled:opacity-40 transition-colors"
+                >
+                  {detecting ? <Loader2 className="h-3.5 w-3.5 animate-spin" /> : <RefreshCw className="h-3.5 w-3.5" />}
+                  测试识别
+                </button>
+              </div>
+              <div className="grid grid-cols-2 gap-2">
+                <div>
+                  <div className="text-[10px] text-muted mb-1">响应数据路径</div>
+                  <input
+                    value={responsePath}
+                    onChange={(e) => setResponsePath(e.target.value)}
+                    placeholder="data.list（可留空自动识别）"
+                    className="w-full h-8 rounded-lg border border-border bg-base px-2 text-[10px] font-mono text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/50"
+                  />
+                </div>
+                <div>
+                  <div className="text-[10px] text-muted mb-1">调度间隔（分钟）</div>
+                  <input
+                    type="number"
+                    min={1}
+                    value={schedule}
+                    onChange={(e) => setSchedule(Number(e.target.value) || 1)}
+                    className="w-full h-8 rounded-lg border border-border bg-base px-2 text-[10px] font-mono text-foreground focus:outline-none focus:border-accent/50"
+                  />
+                </div>
+              </div>
+              <div className="grid grid-cols-2 gap-2">
+                <div>
+                  <div className="text-[10px] text-muted mb-1">Headers（JSON，可选）</div>
+                  <textarea
+                    value={headerStr}
+                    onChange={(e) => setHeaderStr(e.target.value)}
+                    rows={2}
+                    placeholder='{"Authorization":"Bearer xxx"}'
+                    className="w-full rounded-lg border border-border bg-base px-2 py-1.5 text-[10px] font-mono text-foreground placeholder:text-muted/40 resize-none focus:outline-none focus:border-accent/50"
+                  />
+                </div>
+                <div>
+                  <div className="text-[10px] text-muted mb-1">字段映射（外部名 → 内部名，可选）</div>
+                  <textarea
+                    value={fieldMapStr}
+                    onChange={(e) => setFieldMapStr(e.target.value)}
+                    rows={2}
+                    placeholder='{"code":"symbol","val":"score"}'
+                    className="w-full rounded-lg border border-border bg-base px-2 py-1.5 text-[10px] font-mono text-foreground placeholder:text-muted/40 resize-none focus:outline-none focus:border-accent/50"
+                  />
+                </div>
+              </div>
+              {method === 'POST' && (
+                <div>
+                  <div className="text-[10px] text-muted mb-1">请求体（JSON，可选）</div>
+                  <textarea
+                    value={body}
+                    onChange={(e) => setBody(e.target.value)}
+                    rows={3}
+                    placeholder='{"page":1}'
+                    className="w-full rounded-lg border border-border bg-base px-2 py-1.5 text-[10px] font-mono text-foreground placeholder:text-muted/40 resize-none focus:outline-none focus:border-accent/50"
+                  />
+                </div>
+              )}
+              {urlPreview && (
+                <div className="rounded-lg border border-border/50 bg-base/60 p-2.5 space-y-2">
+                  <div className="flex items-center justify-between text-[10px]">
+                    <span className="text-secondary">识别到 {urlPreview.total_rows} 行 · 路径 {urlPreview.response_path || '根数组'}</span>
+                    {urlPreview.response_path_candidates.length > 1 && (
+                      <span className="text-muted">候选路径 {urlPreview.response_path_candidates.length} 个</span>
+                    )}
+                  </div>
+                  {previewColumns.length > 0 && (
+                    <div className="overflow-x-auto rounded-md border border-border/40">
+                      <table className="min-w-full text-left text-[10px]">
+                        <thead className="bg-elevated/50 text-muted">
+                          <tr>
+                            {previewColumns.map(col => <th key={col} className="px-2 py-1 font-medium">{col}</th>)}
+                          </tr>
+                        </thead>
+                        <tbody>
+                          {urlPreview.preview.slice(0, 3).map((row, idx) => (
+                            <tr key={idx} className="border-t border-border/30 text-secondary">
+                              {previewColumns.map(col => (
+                                <td key={col} className="max-w-[140px] truncate px-2 py-1 font-mono">
+                                  {row[col] == null ? '—' : String(row[col])}
+                                </td>
+                              ))}
+                            </tr>
+                          ))}
+                        </tbody>
+                      </table>
+                    </div>
+                  )}
+                </div>
+              )}
+            </div>
+          )}
+
           <div>
-            <div className="text-[11px] font-medium text-secondary mb-2">字段定义</div>
+            <div className="flex items-center justify-between mb-2">
+              <div className="text-[11px] font-medium text-secondary">字段定义</div>
+              {(sourceMode === 'manual' || fields.length > 0) && (
+                <div className="flex items-center gap-1.5">
+                  {sourceMode !== 'url' && (
+                    <button
+                      onClick={() => detectFileRef.current?.click()}
+                      disabled={detecting}
+                      className="inline-flex items-center gap-1 px-2 py-0.5 rounded-md text-[10px] text-muted hover:text-accent hover:bg-accent/[0.06] disabled:opacity-40 transition-colors"
+                    >
+                      {detecting ? <Loader2 className="h-3 w-3 animate-spin" /> : <Upload className="h-3 w-3" />}
+                      从数据文件识别
+                    </button>
+                  )}
+                  <button
+                    onClick={addField}
+                    className="inline-flex items-center gap-0.5 px-2 py-0.5 rounded-md text-[10px] text-muted hover:text-accent hover:bg-accent/[0.06] transition-colors"
+                  >
+                    <Plus className="h-3 w-3" />
+                    添加字段
+                  </button>
+                </div>
+              )}
+            </div>
 
             <input
               ref={detectFileRef}
@@ -223,20 +585,13 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
                 className="mb-2 rounded-lg border border-amber-500/30 bg-amber-500/[0.06] px-3 py-2.5 space-y-2"
               >
                 <div className="text-[10px] text-amber-400 font-medium">
-                  未自动识别到标的代码，请选择哪一列作为标的代码（symbol）
+                  未自动识别到唯一标的代码，请选择哪一列作为标的代码
                 </div>
                 <div className="flex flex-wrap gap-1.5">
                   {selectMapping.fields.map(f => (
                     <button
                       key={f.name}
-                      onClick={() => {
-                        const sm = { type: 'mapped', col: f.name }
-                        const cm = { type: 'computed', from: 'symbol', method: 'strip_exchange' }
-                        setSymbolMap(sm)
-                        setCodeMap(cm)
-                        setMatchStatus('full')
-                        setSelectMapping(null)
-                      }}
+                      onClick={() => applyManualMapping(f.name)}
                       className="px-2.5 py-1 rounded-md bg-accent/10 text-accent text-[10px] font-medium hover:bg-accent/20 transition-colors"
                     >
                       {f.name}
@@ -252,7 +607,7 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
               </motion.div>
             )}
 
-            {userFields.length === 0 ? (
+            {sourceMode === 'file' && fields.length === 0 ? (
               <div
                 onClick={() => detectFileRef.current?.click()}
                 onDragOver={e => { e.preventDefault(); setDragOver(true) }}
@@ -261,7 +616,7 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
                   e.preventDefault()
                   setDragOver(false)
                   const file = e.dataTransfer.files[0]
-                  if (file) { setDetecting(true); setError(''); setSelectMapping(null); api.extDataDetectFields(file).then(res => { processDetection(res.fields, res.symbol_candidates, res.code_candidates); }).catch(err => setError(String(err))).finally(() => setDetecting(false)) }
+                  if (file) detectFile(file)
                 }}
                 className={`rounded-xl border-2 border-dashed py-6 flex flex-col items-center justify-center gap-2 cursor-pointer transition-colors ${
                   dragOver ? 'border-accent bg-accent/[0.06]' : detecting ? 'border-border/40 pointer-events-none' : 'border-border/30 hover:border-accent/40 hover:bg-accent/[0.02]'
@@ -273,97 +628,144 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
                   <>
                     <Upload className="h-5 w-5 text-muted/60" />
                     <span className="text-[11px] text-secondary">上传数据文件（CSV / Excel）自动识别数据格式</span>
-                    <span className="text-[10px] text-amber-400/70">自动识别列名和类型，symbol 列自动匹配</span>
+                    <span className="text-[10px] text-amber-400/70">自动识别列名和类型，symbol/code 列自动匹配</span>
                   </>
                 )}
               </div>
+            ) : sourceMode === 'url' && fields.length === 0 ? (
+              <div className="rounded-xl border border-dashed border-border/40 bg-elevated/20 py-5 text-center text-[11px] text-muted">
+                填写 URL 后点击测试识别，系统会根据返回数据生成字段
+              </div>
+            ) : sourceMode === 'manual' && fields.length === 0 ? (
+              <div className="rounded-xl border border-dashed border-border/40 bg-elevated/20 py-5 flex flex-col items-center gap-2">
+                <div className="text-[11px] text-muted">手动添加字段后即可创建空表结构</div>
+                <button
+                  onClick={addField}
+                  className="inline-flex items-center gap-1 rounded-lg bg-accent px-3 py-1.5 text-xs font-medium text-base hover:bg-accent/90 transition-colors"
+                >
+                  <Plus className="h-3.5 w-3.5" />
+                  添加字段
+                </button>
+              </div>
             ) : (
-              <>
-                <div className="flex items-center justify-end gap-1.5 mb-1.5">
-                  <button
-                    onClick={() => detectFileRef.current?.click()}
-                    disabled={detecting}
-                    className="inline-flex items-center gap-1 px-2 py-0.5 rounded-md text-[10px] text-muted hover:text-accent hover:bg-accent/[0.06] disabled:opacity-40 transition-colors"
-                  >
-                    {detecting ? <Loader2 className="h-3 w-3 animate-spin" /> : <Upload className="h-3 w-3" />}
-                    从数据文件识别
-                  </button>
-                  <button
-                    onClick={addField}
-                    className="inline-flex items-center gap-0.5 px-2 py-0.5 rounded-md text-[10px] text-muted hover:text-accent hover:bg-accent/[0.06] transition-colors"
-                  >
-                    <Plus className="h-3 w-3" />
-                    添加字段
-                  </button>
+              <div className="space-y-1">
+                <div className={`flex items-center gap-2 px-2.5 py-1.5 rounded-md border ${matchStatus !== 'none' ? 'border-border/40 bg-elevated/20' : 'border-danger/30 bg-danger/[0.04]'}`}>
+                  <span className="w-[72px] shrink-0 text-[11px] text-muted">标的代码</span>
+                  <span className="flex-1 text-[11px] font-mono text-muted">symbol</span>
+                  <span className="w-[52px] text-center text-[10px] text-muted/40">文本</span>
+                  {matchStatus !== 'none'
+                    ? <span className="text-[9px] text-green-500/70 shrink-0">
+                        {symbolMap.type === 'mapped' ? `← ${symbolMap.col}` : '← 计算'}
+                      </span>
+                    : <AlertCircle className="h-3.5 w-3.5 text-danger/60 shrink-0" />}
                 </div>
-                <div className="space-y-1">
-                  <div className={`flex items-center gap-2 px-2.5 py-1.5 rounded-md border ${matchStatus !== 'none' ? 'border-border/40 bg-elevated/20' : 'border-danger/30 bg-danger/[0.04]'}`}>
-                    <span className="w-[72px] shrink-0 text-[11px] text-muted">标的代码</span>
-                    <span className="flex-1 text-[11px] font-mono text-muted">symbol</span>
-                    <span className="w-[52px] text-center text-[10px] text-muted/40">文本</span>
-                    {matchStatus !== 'none'
-                      ? <span className="text-[9px] text-green-500/70 shrink-0">
-                          {symbolMap.type === 'mapped' ? `← ${symbolMap.col}` : '← 计算'}
-                        </span>
-                      : <AlertCircle className="h-3.5 w-3.5 text-danger/60 shrink-0" />}
-                  </div>
-                  <div className={`flex items-center gap-2 px-2.5 py-1.5 rounded-md border ${matchStatus !== 'none' ? 'border-border/40 bg-elevated/20' : 'border-danger/30 bg-danger/[0.04]'}`}>
-                    <span className="w-[72px] shrink-0 text-[11px] text-muted">代码</span>
-                    <span className="flex-1 text-[11px] font-mono text-muted">code</span>
-                    <span className="w-[52px] text-center text-[10px] text-muted/40">文本</span>
-                    {matchStatus !== 'none'
-                      ? <span className="text-[9px] text-green-500/70 shrink-0">
-                          {codeMap.type === 'mapped' ? `← ${codeMap.col}` : codeMap.method === 'strip_exchange' ? '← symbol截取' : '← 推算'}
-                        </span>
-                      : <AlertCircle className="h-3.5 w-3.5 text-danger/60 shrink-0" />}
-                  </div>
-                  {userFields.map((f) => {
-                    const idx = fields.indexOf(f)
-                    return (
-                      <div key={idx} className="flex items-center gap-1.5 group">
-                        <input
-                          value={f.label}
-                          onChange={(e) => updateField(idx, 'label', e.target.value)}
-                          placeholder="显示名"
-                          className="w-[72px] h-7 px-2 rounded-md border border-border bg-base text-[11px] text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/40"
-                        />
-                        <input
-                          value={f.name}
-                          onChange={(e) => updateField(idx, 'name', e.target.value)}
-                          placeholder="字段名"
-                          className="flex-1 h-7 px-2 rounded-md border border-border bg-base text-[11px] font-mono text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/40"
-                        />
-                        <select
-                          value={f.dtype}
-                          onChange={(e) => updateField(idx, 'dtype', e.target.value)}
-                          className="h-7 px-2 rounded-md border border-border bg-base text-[11px] text-foreground"
-                        >
-                          <option value="string">文本</option>
-                          <option value="int">整数</option>
-                          <option value="float">小数</option>
-                          <option value="bool">布尔</option>
-                        </select>
-                        <button
-                          onClick={() => removeField(idx)}
-                          className="p-1 rounded text-muted/40 hover:text-danger hover:bg-danger/10 opacity-0 group-hover:opacity-100 transition-all"
-                        >
-                          <X className="h-3 w-3" />
-                        </button>
-                      </div>
-                    )
-                  })}
+                <div className={`flex items-center gap-2 px-2.5 py-1.5 rounded-md border ${matchStatus !== 'none' ? 'border-border/40 bg-elevated/20' : 'border-danger/30 bg-danger/[0.04]'}`}>
+                  <span className="w-[72px] shrink-0 text-[11px] text-muted">代码</span>
+                  <span className="flex-1 text-[11px] font-mono text-muted">code</span>
+                  <span className="w-[52px] text-center text-[10px] text-muted/40">文本</span>
+                  {matchStatus !== 'none'
+                    ? <span className="text-[9px] text-green-500/70 shrink-0">
+                        {codeMap.type === 'mapped' ? `← ${codeMap.col}` : codeMap.method === 'strip_exchange' ? '← symbol截取' : '← 推算'}
+                      </span>
+                    : <AlertCircle className="h-3.5 w-3.5 text-danger/60 shrink-0" />}
                 </div>
-              </>
+                {userFields.map((f) => {
+                  const idx = fields.indexOf(f)
+                  return (
+                    <div key={idx} className="flex items-center gap-1.5 group">
+                      <input
+                        value={f.label}
+                        onChange={(e) => updateField(idx, 'label', e.target.value)}
+                        placeholder="显示名"
+                        className="w-[72px] h-7 px-2 rounded-md border border-border bg-base text-[11px] text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/40"
+                      />
+                      <input
+                        value={f.name}
+                        onChange={(e) => updateField(idx, 'name', e.target.value)}
+                        placeholder="字段名"
+                        className="flex-1 h-7 px-2 rounded-md border border-border bg-base text-[11px] font-mono text-foreground placeholder:text-muted/40 focus:outline-none focus:border-accent/40"
+                      />
+                      <select
+                        value={f.dtype}
+                        onChange={(e) => updateField(idx, 'dtype', e.target.value)}
+                        className="h-7 px-2 rounded-md border border-border bg-base text-[11px] text-foreground"
+                      >
+                        <option value="string">文本</option>
+                        <option value="int">整数</option>
+                        <option value="float">小数</option>
+                        <option value="bool">布尔</option>
+                      </select>
+                      <button
+                        onClick={() => removeField(idx)}
+                        className="p-1 rounded text-muted/40 hover:text-danger hover:bg-danger/10 opacity-0 group-hover:opacity-100 transition-all"
+                      >
+                        <X className="h-3 w-3" />
+                      </button>
+                    </div>
+                  )
+                })}
+              </div>
             )}
           </div>
 
+          {sourceMode === 'url' && (
+            <div className="rounded-xl border border-border/60 bg-elevated/20 p-3 space-y-2">
+              <div className="text-[11px] font-medium text-secondary">创建选项</div>
+              <label className="flex items-center gap-2 text-[11px] text-secondary">
+                <input
+                  type="checkbox"
+                  checked={savePull}
+                  onChange={(e) => {
+                    setSavePull(e.target.checked)
+                    if (!e.target.checked) {
+                      setImportNow(false)
+                      setEnablePull(false)
+                    }
+                  }}
+                  className="h-3.5 w-3.5 accent-accent"
+                />
+                保存为拉取配置
+              </label>
+              <label className="flex items-center gap-2 text-[11px] text-secondary">
+                <input
+                  type="checkbox"
+                  checked={importNow}
+                  onChange={(e) => {
+                    setImportNow(e.target.checked)
+                    if (e.target.checked) setSavePull(true)
+                  }}
+                  className="h-3.5 w-3.5 accent-accent"
+                />
+                创建后立即导入本次数据
+              </label>
+              <label className="flex items-center gap-2 text-[11px] text-secondary">
+                <input
+                  type="checkbox"
+                  checked={enablePull}
+                  onChange={(e) => {
+                    setEnablePull(e.target.checked)
+                    if (e.target.checked) setSavePull(true)
+                  }}
+                  className="h-3.5 w-3.5 accent-accent"
+                />
+                启用定时拉取
+              </label>
+            </div>
+          )}
+
           {error && (
             <div className="text-[11px] text-danger bg-danger/5 rounded-lg px-3 py-2">{error}</div>
           )}
         </div>
 
         <div className="flex items-center justify-between px-6 py-4 border-t border-border/50 bg-elevated/20">
-          <div className="text-[10px] text-muted/60">数据需自行维护和更新，系统不会自动同步</div>
+          <div className="text-[10px] text-muted/60">
+            {sourceMode === 'url'
+              ? '创建后可在扩展数据卡片中继续调整拉取配置'
+              : sourceMode === 'file'
+                ? '文件识别用于生成表结构，创建后仍可上传文件写入数据'
+                : '手动创建后可通过文件、推送或拉取写入数据'}
+          </div>
           <div className="flex items-center gap-2">
             <button onClick={onClose} className="px-4 py-2 rounded-lg bg-elevated text-secondary text-xs hover:bg-elevated/80 transition-colors">
               取消

frontend/src/components/ext-data/ExtDataStatCard.tsx

@@ -21,7 +21,7 @@ export function ExtDataStatCard({ config, onDelete, deleting, onEdit }: {
   const [showDelete, setShowDelete] = useState(false)
   const [settingsOpen, setSettingsOpen] = useState(false)
   const [dragOver, setDragOver] = useState(false)
-  const [ingestTab, setIngestTab] = useState<'file' | 'api' | 'pull'>('file')
+  const [ingestTab, setIngestTab] = useState<'file' | 'api' | 'pull'>('pull')
   const [copied, setCopied] = useState(false)
   const [fieldsExpanded, setFieldsExpanded] = useState(false)
   const fieldsRef = useRef<HTMLDivElement>(null)
@@ -172,12 +172,12 @@ export function ExtDataStatCard({ config, onDelete, deleting, onEdit }: {
 
               <div className="flex gap-1 rounded-lg bg-elevated/60 p-0.5">
                 <button
-                  onClick={() => setIngestTab('file')}
+                  onClick={() => setIngestTab('pull')}
                   className={`flex-1 inline-flex items-center justify-center gap-1 py-1.5 rounded-md text-[10px] font-medium transition-colors ${
-                    ingestTab === 'file' ? 'bg-surface text-foreground shadow-sm' : 'text-muted hover:text-secondary'
+                    ingestTab === 'pull' ? 'bg-surface text-foreground shadow-sm' : 'text-muted hover:text-secondary'
                   }`}
                 >
-                  <Upload className="h-3 w-3" />文件
+                  <RefreshCw className="h-3 w-3" />拉取
                 </button>
                 <button
                   onClick={() => setIngestTab('api')}
@@ -188,16 +188,20 @@ export function ExtDataStatCard({ config, onDelete, deleting, onEdit }: {
                   <Code className="h-3 w-3" />推送
                 </button>
                 <button
-                  onClick={() => setIngestTab('pull')}
+                  onClick={() => setIngestTab('file')}
                   className={`flex-1 inline-flex items-center justify-center gap-1 py-1.5 rounded-md text-[10px] font-medium transition-colors ${
-                    ingestTab === 'pull' ? 'bg-surface text-foreground shadow-sm' : 'text-muted hover:text-secondary'
+                    ingestTab === 'file' ? 'bg-surface text-foreground shadow-sm' : 'text-muted hover:text-secondary'
                   }`}
                 >
-                  <RefreshCw className="h-3 w-3" />拉取
+                  <Upload className="h-3 w-3" />上传
                 </button>
               </div>
 
-              {ingestTab === 'file' ? (
+              {ingestTab === 'pull' ? (
+                <ExtDataPullPanel config={config} onSaved={() => qc.invalidateQueries({ queryKey: QK.extData })} />
+              ) : ingestTab === 'api' ? (
+                <ExtDataApiPanel config={config} copied={copied} setCopied={setCopied} />
+              ) : (
                 <>
                   <input
                     ref={fileRef}
@@ -235,10 +239,6 @@ export function ExtDataStatCard({ config, onDelete, deleting, onEdit }: {
                     )}
                   </div>
                 </>
-              ) : ingestTab === 'api' ? (
-                <ExtDataApiPanel config={config} copied={copied} setCopied={setCopied} />
-              ) : (
-                <ExtDataPullPanel config={config} onSaved={() => qc.invalidateQueries({ queryKey: QK.extData })} />
               )}
 
               {uploadResult && (