修改

app/Services/Crawl/Adapters/FacultyListHtmlAdapter.php

@@ -7,6 +7,7 @@ use App\Services\Crawl\Contracts\CrawlerAdapterInterface;
 use App\Services\Crawl\CrawlAuthorParser;
 use App\Services\Crawl\CrawlItemDto;
 use App\Services\Crawl\CrawlKeywordParser;
+use Illuminate\Http\Client\Response;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Str;
 
@@ -83,15 +84,16 @@ class FacultyListHtmlAdapter implements CrawlerAdapterInterface
                 foreach ($pending as $externalId => $item) {
                     $pool->as($externalId)
                         ->timeout($timeout)
+                        ->connectTimeout(min(10, $timeout))
+                        ->retry(1, 500, fn ($exception) => $exception instanceof \Illuminate\Http\Client\ConnectionException, throw: false)
                         ->withHeaders($headers)
                         ->get($item->canonicalUrl);
                 }
             });
 
             foreach ($pending as $externalId => $item) {
-                $response = $responses[$externalId] ?? null;
-                if ($response && $response->successful()) {
-                    $body = (string) $response->body();
+                $body = $this->responseBodyFromPoolResult($responses[$externalId] ?? null);
+                if ($body !== null) {
                     $email = $this->extractEmailFromProfileHtml($body);
                     if ($email) {
                         $item = $this->applyEmailToItem($item, $email);
@@ -105,6 +107,15 @@ class FacultyListHtmlAdapter implements CrawlerAdapterInterface
         return $enriched;
     }
 
+    protected function responseBodyFromPoolResult(mixed $result): ?string
+    {
+        if ($result instanceof Response && $result->successful()) {
+            return (string) $result->body();
+        }
+
+        return null;
+    }
+
     protected function itemHasEmail(CrawlItemDto $item): bool
     {
         $lead = $item->extra['lead_author'] ?? null;

tests/Unit/FacultyListHtmlAdapterTest.php

@@ -209,4 +209,17 @@ HTML;
         $this->assertSame('教授', $item->extra['lead_author']['academic_title']);
         $this->assertSame('塑性成形技术与装备研究院', $item->extra['college_name']);
     }
+
+    public function test_response_body_from_pool_result_ignores_connection_exception(): void
+    {
+        $adapter = new FacultyListHtmlAdapter;
+        $method = new \ReflectionMethod($adapter, 'responseBodyFromPoolResult');
+        $method->setAccessible(true);
+
+        $this->assertNull($method->invoke($adapter, new \GuzzleHttp\Exception\ConnectException(
+            'Connection timed out',
+            new \GuzzleHttp\Psr7\Request('GET', 'https://faculty.sjtu.edu.cn/test'),
+        )));
+        $this->assertNull($method->invoke($adapter, null));
+    }
 }