| 306 | |
| 307 | // 带重试的 fetch 函数 |
| 308 | private static async fetchWithRetry(url: string, options: RequestInit, retries: number = 3): Promise<Response> { |
| 309 | for (let i = 0; i < retries; i++) { |
| 310 | try { |
| 311 | const response = await fetch(url, options); |
| 312 | if (response.ok || response.status === 403) { |
| 313 | return response; |
| 314 | } |
| 315 | // 如果不是 403 错误，等待后重试 |
| 316 | if (i < retries - 1) { |
| 317 | await new Promise(resolve => setTimeout(resolve, 1000 * (i + 1))); // 递增延迟 |
| 318 | } |
| 319 | } catch (error) { |
| 320 | console.error(`Fetch attempt ${i + 1} failed:`, error); |
| 321 | if (i === retries - 1) { |
| 322 | throw error; |
| 323 | } |
| 324 | await new Promise(resolve => setTimeout(resolve, 1000 * (i + 1))); |
| 325 | } |
| 326 | } |
| 327 | throw new Error(`Failed after ${retries} retries`); |
| 328 | } |
| 329 | } |