新增配置模型测试按钮

backend/app/api/v1/endpoints/platform.py

@@ -741,6 +741,67 @@ async def model_list(current_user: dict = Depends(get_current_user)) -> dict[str
     return ok(get_platform_store().models())
 
 
+@router.post("/model-manage/test-online")
+async def test_online_model(payload: dict[str, Any] = Body(...)) -> dict[str, Any]:
+    """测试在线模型 API 是否可用：发送一个简单的 chat/completions 请求验证连通性。"""
+    api_url = (payload.get("api_url") or "").rstrip("/")
+    api_key = payload.get("api_key") or ""
+    model_name = payload.get("online_model_name") or ""
+    if not api_url:
+        raise fail(400, "api_url is required")
+    if not model_name:
+        raise fail(400, "online_model_name is required")
+    import httpx
+    try:
+        async with httpx.AsyncClient(timeout=15) as client:
+            headers = {"Content-Type": "application/json"}
+            if api_key:
+                headers["Authorization"] = f"Bearer {api_key}"
+            # 尝试多种 OpenAI 兼容路径
+            chat_paths = [
+                f"{api_url}/chat/completions",
+                f"{api_url}/v1/chat/completions",
+                f"{api_url}/modelTF/v1/chat/completions",
+            ]
+            resp = None
+            for path in chat_paths:
+                try:
+                    r = await client.post(
+                        path,
+                        json={
+                            "model": model_name,
+                            "messages": [{"role": "user", "content": "Hi"}],
+                            "max_tokens": 5,
+                            "temperature": 0,
+                        },
+                        headers=headers,
+                    )
+                    if r.status_code in (200, 201):
+                        resp = r
+                        break
+                except Exception:
+                    continue
+            if resp is None:
+                return ok({"success": False, "error": f"无法连接到 {api_url}，请检查地址和端口"})
+            body = resp.json()
+            usage = body.get("usage", {})
+            return ok({
+                "success": True,
+                "model": body.get("model", model_name),
+                "provider": body.get("object", ""),
+                "usage": {
+                    "prompt_tokens": usage.get("prompt_tokens", 0),
+                    "completion_tokens": usage.get("completion_tokens", 0),
+                    "total_tokens": usage.get("total_tokens", 0),
+                },
+                "latency_ms": None,  # 由前端计算
+            })
+    except httpx.TimeoutException:
+        return ok({"success": False, "error": "连接超时（15s），请检查网络或 API 地址是否正确"})
+    except Exception as exc:
+        return ok({"success": False, "error": str(exc)})
+
+
 @router.post("/model-manage")
 async def create_model(payload: dict[str, Any] = Body(...), current_user: dict = Depends(get_current_user)) -> dict[str, Any]:
     payload.setdefault("created_by", current_user.get("id"))