修正資料庫未關閉問題

app/api/admin/force-cleanup/route.ts

@@ -0,0 +1,66 @@
+// =====================================================
+// 強制清理連線 API
+// =====================================================
+
+import { NextRequest, NextResponse } from 'next/server';
+import { db } from '@/lib/database';
+import { connectionMonitor } from '@/lib/connection-monitor';
+
+export async function POST(request: NextRequest) {
+  try {
+    console.log('🧹 開始強制清理資料庫連線...');
+    
+    // 獲取清理前的連線狀態
+    const beforeStats = await connectionMonitor.getConnectionStats();
+    console.log(`清理前連線數: ${beforeStats.activeConnections}`);
+    
+    // 強制關閉連線池
+    try {
+      await db.close();
+      console.log('✅ 主要資料庫連線池已關閉');
+    } catch (error) {
+      console.error('❌ 關閉主要連線池失敗:', error);
+    }
+    
+    // 等待一段時間讓連線完全關閉
+    await new Promise(resolve => setTimeout(resolve, 2000));
+    
+    // 重新初始化連線池
+    try {
+      // 重新創建連線池實例
+      const { Database } = await import('@/lib/database');
+      const newDb = Database.getInstance();
+      console.log('✅ 資料庫連線池已重新初始化');
+    } catch (error) {
+      console.error('❌ 重新初始化連線池失敗:', error);
+    }
+    
+    // 獲取清理後的連線狀態
+    const afterStats = await connectionMonitor.getConnectionStats();
+    console.log(`清理後連線數: ${afterStats.activeConnections}`);
+    
+    return NextResponse.json({
+      success: true,
+      message: '強制清理完成',
+      data: {
+        before: {
+          activeConnections: beforeStats.activeConnections,
+          usagePercentage: beforeStats.usagePercentage
+        },
+        after: {
+          activeConnections: afterStats.activeConnections,
+          usagePercentage: afterStats.usagePercentage
+        },
+        cleaned: beforeStats.activeConnections - afterStats.activeConnections
+      }
+    });
+
+  } catch (error) {
+    console.error('強制清理失敗:', error);
+    return NextResponse.json({
+      success: false,
+      message: '強制清理失敗',
+      error: error instanceof Error ? error.message : '未知錯誤'
+    }, { status: 500 });
+  }
+}