修复: 订单记录页加载卡死(增加请求超时与重试) + 订单接口释放会话锁并对database is locked重试

api/cashier.php

@@ -151,29 +151,48 @@ function cashierPlayerCheck() {
 // ===== 订单列表 =====
 function cashierOrderList() {
     $role = requireCashierOrAdminSession();
+    // 收银员只能看自己的订单
+    $c = null;
+    if ($role === 'cashier') {
+        $c = getCurrentCashier();
+    }
+    // ★ 尽早释放会话锁：查询期间不再占用 session 文件，避免阻塞同会话并发请求
+    if (session_status() === PHP_SESSION_ACTIVE) session_write_close();
+
     $db = getDB();
     $limit = (int)getParam('limit', 100);
     if ($limit <= 0 || $limit > 500) $limit = 100;
     $sql = "SELECT * FROM cashier_orders";
     $params = [];
-    // 收银员只能看自己的订单
-    if ($role === 'cashier') {
-        $c = getCurrentCashier();
+    if ($role === 'cashier' && $c) {
         $sql .= " WHERE operator_name = :op";
         $params[':op'] = $c['username'];
     }
     $sql .= " ORDER BY created_at DESC LIMIT " . (int)$limit;
-    $stmt = $db->prepare($sql);
-    foreach ($params as $k => $v) {
-        $stmt->bindValue($k, $v, SQLITE3_TEXT);
-    }
-    $result = $stmt->execute();
+
+    // ★ 重试规避 database is locked（Java 高频写入时 SQLite 偶发锁，最多重试4次）
     $rows = [];
-    while ($r = $result->fetchArray(SQLITE3_ASSOC)) {
-        if (!empty($r['items_detail'])) {
-            $r['items_detail'] = json_decode($r['items_detail'], true) ?: [];
+    $attempts = 0;
+    while ($attempts < 4) {
+        $attempts++;
+        $stmt = $db->prepare($sql);
+        if (!$stmt) break;
+        foreach ($params as $k => $v) {
+            $stmt->bindValue($k, $v, SQLITE3_TEXT);
         }
-        $rows[] = $r;
+        $result = @$stmt->execute();
+        if ($result === false) {
+            $err = $db->lastErrorMsg();
+            if (stripos($err, 'locked') !== false && $attempts < 4) { usleep(200000); continue; }
+            exit(json_encode(['success' => false, 'message' => '查询失败: ' . $err], JSON_UNESCAPED_UNICODE));
+        }
+        while ($r = $result->fetchArray(SQLITE3_ASSOC)) {
+            if (!empty($r['items_detail'])) {
+                $r['items_detail'] = json_decode($r['items_detail'], true) ?: [];
+            }
+            $rows[] = $r;
+        }
+        break;
     }
     exit(json_encode(['success' => true, 'data' => $rows], JSON_UNESCAPED_UNICODE));
 }

orders.php

@@ -127,12 +127,24 @@ $initialState = json_encode([
 <script>
 const STATE = <?php echo $initialState; ?>;
 function esc(s){ return String(s==null?'':s).replace(/[&<>"]/g, c=>({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;}[c])); }
-async function api(url, opts) {
-    const r = await fetch(url, Object.assign({headers:{'X-Requested-With':'orders'}}, opts));
-    return await r.json();
+async function api(url, opts, timeoutMs = 20000) {
+    const ctrl = new AbortController();
+    const timer = setTimeout(() => ctrl.abort(), timeoutMs);
+    try {
+        const r = await fetch(url, Object.assign(
+            {headers: {'X-Requested-With': 'orders'}, credentials: 'same-origin'},
+            opts || {},
+            {signal: ctrl.signal}
+        ));
+        return await r.json();
+    } finally {
+        clearTimeout(timer);
+    }
 }
 
 async function loadOrders() {
+    const el = document.getElementById('orderList');
+    el.innerHTML = '<div class="empty-state">加载中…</div>';
     try {
         const params = new URLSearchParams();
         params.set('action', 'order_list');
@@ -145,10 +157,13 @@ async function loadOrders() {
         if (pm) params.set('pay_mode', pm);
 
         const d = await api('api/cashier.php?' + params.toString());
-        const el = document.getElementById('orderList');
         document.getElementById('orderCount').textContent = '';
 
-        if (!d.success || !d.data || !d.data.length) {
+        if (!d.success) {
+            el.innerHTML = '<div class="empty-state">加载失败：' + esc(d.message || '未知错误') + '，<a href="javascript:loadOrders()" style="color:var(--accent)">点击重试</a></div>';
+            return;
+        }
+        if (!d.data || !d.data.length) {
             el.innerHTML = '<div class="empty-state">暂无符合条件的订单</div>';
             return;
         }
@@ -167,7 +182,10 @@ async function loadOrders() {
                 <div class="od">实收 <b style="color:var(--green)">${o.total_price}</b> 债券 · ${new Date((o.created_at||0)*1000).toLocaleString('zh-CN')}</div>
             </div>`;
         }).join('');
-    } catch(e) { document.getElementById('orderList').innerHTML = '<div class="empty-state">加载失败</div>'; }
+    } catch(e) {
+        const msg = (e && e.name === 'AbortError') ? '加载超时（服务器繁忙），' : '加载失败，';
+        el.innerHTML = '<div class="empty-state">' + msg + '<a href="javascript:loadOrders()" style="color:var(--accent)">点击重试</a></div>';
+    }
 }
 
 function escapeHtmlAttr(str) {