{"error":"404","type":"NotFound","message":"请求的路径不存在: sitemap.xml","timestamp":"Sat Apr 04 05:20:02 CST 2026","hint":"访问 /diag/404 查看详细诊断信息","suggestion":["检查路径是否需要 /api 前缀","检查 Controller 是否有 @RequestMapping 注解","访问 /diag/routes 查看所有可用路径"]}