1. 实现根据第三方交易号查询订单号。

backup/fmbackup.cpp

@@ -168,3 +168,28 @@ FMBackup::FMOrder FMBackup::getOrderByTransId(const QString &trans_id)
                   .arg(order.trans_id).arg(order.fm_open_id).arg(order.fm_id).arg(order.fm_transId);
     return order;
 }
+
+FMBackup::FMOrder FMBackup::getOrderByFMTransId(const QString &fm_transId)
+{
+    if(!_db.isOpen()) {
+        connect();
+    }
+
+    QSqlQuery query(_db);
+    bool isOk = query.exec(QString("select * from tbl_order where (tbl_order.fm_transId='%1')").arg(fm_transId));
+    if(!isOk) {
+        FMP_ERROR() << QString::fromLocal8Bit("查询订单失败：fm_transId: %1。失败原因：%2").arg(fm_transId).arg(query.lastError().text());
+    }
+    FMOrder order;
+    while(query.next())
+    {
+        QSqlRecord record = query.record();
+        order.trans_id = record.value("trans_id").toString();
+        order.fm_open_id = record.value("fm_open_id").toString();
+        order.fm_id = record.value("fm_id").toString();
+        order.fm_transId = record.value("fm_transId").toString();
+    }
+    FMP_INFO() << QString::fromLocal8Bit("查询到订单信息：trans_id: %1, fm_open_id: %2, fm_id: %3, fm_transId: %4。")
+                  .arg(order.trans_id).arg(order.fm_open_id).arg(order.fm_id).arg(order.fm_transId);
+    return order;
+}

backup/fmbackup.h

@@ -20,6 +20,7 @@ public:
     int insertNewRow();
     bool insertNewOrder(const QString &trans_id, const QString &fm_open_id, const QString &fm_id, const QString &fm_transId);
     FMOrder getOrderByTransId(const QString &trans_id);
+    FMOrder getOrderByFMTransId(const QString &fm_transId);
 
     QSqlQuery reqDataQuery() const;
     bool reset();

task/taskothers.cpp

@@ -72,7 +72,7 @@ void TaskRefundOrder::packageServerReq()
 
     if(fm_id == "") {
         if(fm_transId!="") {
-            fm_id = FMBackup::instance()->getOrderByTransId(trans_id).fm_id;
+            fm_id = FMBackup::instance()->getOrderByFMTransId(trans_id).fm_id;
             if(fm_id == "") {
                 fm_id = fm_transId;
             }