无数据修复

server/repository/stock_repo.go

@@ -58,7 +58,11 @@ func (r *StockRepo) GetLatestTradeDate() (string, error) {
 // 包括: 涨跌统计、涨停跌停列表、百日新高列表
 // 使用单条聚合查询替代多次 COUNT 查询，提升性能
 func (r *StockRepo) GetSummaryByDate(date string) (*model.DashboardSummary, error) {
-	summary := &model.DashboardSummary{}
+	summary := &model.DashboardSummary{
+		LimitUpList:   []model.StockRank{},
+		LimitDownList: []model.StockRank{},
+		High100List:   []model.StockRank{},
+	}
 
 	// 聚合统计: 总数、上涨、下跌、平盘、总成交额、平均涨跌幅
 	var agg struct {
@@ -157,6 +161,9 @@ func (r *StockRepo) GetHigh100ByDate(date string) ([]model.StockRank, error) {
 		LEFT JOIN stock_info si ON t.code = si.code
 		ORDER BY t.pct_change DESC
 	`, date, date, date).Scan(&list)
+	if list == nil {
+		list = []model.StockRank{}
+	}
 	return list, nil
 }
 

web/src/pages/Dashboard.tsx

@@ -53,7 +53,11 @@ export default function Dashboard() {
     );
   }
 
-  if (!summary) return <div>加载失败</div>;
+  if (!summary) return <div>无数据</div>;
+
+  const upList = summary.limit_up_list || [];
+  const downList = summary.limit_down_list || [];
+  const highList = summary.high_100_list || [];
 
   return (
     <div style={{ width: '100%' }}>
@@ -65,20 +69,20 @@ export default function Dashboard() {
       </Card>
 
       <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 16 }}>
-        <Card title={`涨停 (${summary.limit_up_list.length}只)`} size="small">
+        <Card title={`涨停 (${upList.length}只)`} size="small">
           <Table
             columns={columns}
-            dataSource={summary.limit_up_list}
+            dataSource={upList}
             rowKey="code"
             pagination={{ pageSize: 50, size: 'small', showSizeChanger: false }}
             size="small"
             scroll={{ y: 400 }}
           />
         </Card>
-        <Card title={`跌停 (${summary.limit_down_list.length}只)`} size="small">
+        <Card title={`跌停 (${downList.length}只)`} size="small">
           <Table
             columns={columns}
-            dataSource={summary.limit_down_list}
+            dataSource={downList}
             rowKey="code"
             pagination={{ pageSize: 50, size: 'small', showSizeChanger: false }}
             size="small"
@@ -87,10 +91,10 @@ export default function Dashboard() {
         </Card>
       </div>
 
-      <Card title={`百日新高 (${summary.high_100_list.length}只)`} size="small" style={{ marginTop: 16 }}>
+      <Card title={`百日新高 (${highList.length}只)`} size="small" style={{ marginTop: 16 }}>
         <Table
           columns={columns}
-          dataSource={summary.high_100_list}
+          dataSource={highList}
           rowKey="code"
           pagination={{ pageSize: 50, size: 'small', showSizeChanger: false }}
           size="small"