update gradio ui

app.py

@@ -14,14 +14,17 @@ def generate_music(melody_file, prompt):
     if not MUSICGEN_API_URL:
         return "❌ 未配置 MUSICGEN_API_URL，请检查 .env 文件"
 
-    with open(melody_file.name, "rb") as f:
-        files = {
-            "melody": (melody_file.name, f, "audio/wav")
-        }
-        data = {
-            "text": prompt
-        }
-        response = requests.post(MUSICGEN_API_URL, files=files, data=data)
+    try:
+        with open(melody_file, "rb") as f:  # melody_file 是字符串路径
+            files = {
+                "melody": ("hum.wav", f, "audio/wav")  # 用一个合理的名字传给接口
+            }
+            data = {
+                "text": prompt
+            }
+            response = requests.post(MUSICGEN_API_URL, files=files, data=data)
+    except Exception as e:
+        return f"❌ 文件读取失败: {e}"
 
     if response.status_code == 200:
         output_path = "generated_music.wav"