升级

application/common/CrossrefService.php

@@ -16,6 +16,10 @@ class CrossrefService
     private $timeout = 15; // 请求超时（秒）
     private $maxRetry = 2; // 单个DOI最大重试次数
     private $crossrefUrl = "https://api.crossref.org/works/"; // 接口地址
+    private $pubmedAbbr = true; // CrossRef 无期刊缩写时，是否回退到 PubMed/NLM 规范缩写
+
+    /** @var PubmedService|null 懒加载 */
+    private $pubmedService = null;
 
     public function __construct($config = [])
     {
@@ -24,6 +28,7 @@ class CrossrefService
             if (isset($config['timeout'])) $this->timeout = intval($config['timeout']);
             if (isset($config['maxRetry'])) $this->maxRetry = intval($config['maxRetry']);
             if (isset($config['crossrefUrl'])) $this->crossrefUrl = (string)$config['crossrefUrl'];
+            if (isset($config['pubmed_abbr'])) $this->pubmedAbbr = (bool)$config['pubmed_abbr'];
         }
     }
 
@@ -191,7 +196,15 @@ class CrossrefService
 
         $title = $this->getTitle($msg);
         $publisher = $this->getPublisher($msg);
-        $joura = !empty($publisher['title']) ? $publisher['title'] : ($publisher['short_title'] ?? '');
+        $validDoi = $this->filterValidDoi($doi);
+        // 期刊缩写优先级：CrossRef short-container-title → PubMed/NLM 规范缩写 → CrossRef 全称
+        $shortTitle = trim((string)($publisher['short_title'] ?? ''));
+        $fullTitle  = trim((string)($publisher['title'] ?? ''));
+        $joura = $shortTitle;
+        if ($joura === '') {
+            $pubmedAbbr = $this->lookupPubmedJournalAbbr($validDoi);
+            $joura = $pubmedAbbr !== '' ? $pubmedAbbr : $fullTitle;
+        }
         $authors = $this->getAuthors($msg);
         $dateno = $this->getVolumeIssuePages($msg);
         $retractInfo = $this->checkRetracted($msg);
@@ -280,6 +293,34 @@ class CrossrefService
         ];
     }
 
+    /**
+     * 用 PubMed/NLM 反查期刊规范缩写（CrossRef 无缩写时的兜底）。
+     * 任何异常都吞掉并返回空串，保证不影响主流程。
+     *
+     * @param string $doi 已规整的裸 DOI
+     * @return string 缩写或空串
+     */
+    private function lookupPubmedJournalAbbr($doi)
+    {
+        $doi = trim((string)$doi);
+        if (!$this->pubmedAbbr || $doi === '') {
+            return '';
+        }
+
+        try {
+            if ($this->pubmedService === null) {
+                $this->pubmedService = new PubmedService([
+                    'email'   => $this->mailto,
+                    'timeout' => $this->timeout,
+                ]);
+            }
+            $abbr = $this->pubmedService->journalAbbrByDoi($doi);
+            return is_string($abbr) ? trim($abbr) : '';
+        } catch (\Throwable $e) {
+            return '';
+        }
+    }
+
     /**
      * 提取作者列表
      */