diff --git a/app/api/files/[fileKey]/route.ts b/app/api/files/[fileKey]/route.ts
new file mode 100644
index 0000000..3fccb58
--- /dev/null
+++ b/app/api/files/[fileKey]/route.ts
@@ -0,0 +1,31 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+const OSS_URL = process.env.OSS_URL || 'http://localhost:9000';
+const API_KEY = process.env.OSS_API_KEY || '7cf93760ea49b750c96e6078b364e5f0';
+
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ fileKey: string }> }
+) {
+  try {
+    const { fileKey } = await params;
+    
+    const res = await fetch(`${OSS_URL}/api/files/${fileKey}/preview?key=${API_KEY}`);
+    
+    if (!res.ok) {
+      return new NextResponse('File not found', { status: 404 });
+    }
+    
+    const imageBuffer = await res.arrayBuffer();
+    
+    return new NextResponse(imageBuffer, {
+      headers: {
+        'Content-Type': 'image/jpeg',
+        'Cache-Control': 'public, max-age=31536000',
+      },
+    });
+  } catch (error) {
+    console.error('Proxy error:', error);
+    return new NextResponse('Error', { status: 500 });
+  }
+}
\ No newline at end of file
diff --git a/app/api/upload/route.ts b/app/api/upload/route.ts
index ea9aab0..1da81a3 100644
--- a/app/api/upload/route.ts
+++ b/app/api/upload/route.ts
@@ -76,7 +76,7 @@ export async function POST(request: NextRequest) {
 
     const fileData = await uploadRes.json();
     
-    const url = `${OSS_URL}/api/files/${fileData.fileKey}/preview?key=${API_KEY}`;
+    const url = `/api/files/${fileData.fileKey}`;
     return NextResponse.json({ url, fileKey: fileData.fileKey });
   } catch (error) {
     console.error('Upload error:', error);