diff --git a/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java b/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
index c68033c3..f52cce17 100644
--- a/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
+++ b/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
@@ -255,10 +255,17 @@ public class BuyOrderController {
      */
     @RequestMapping("/rechargeSave")
     @Transactional
-    public R rechargeSave(@RequestBody BuyOrderEntity buyOrder) {
+    public R rechargeSave(@RequestBody BuyOrderEntity buyOrder) throws IOException {
         String timeId = IdWorker.getTimeId().substring(0, 32);
         buyOrder.setOrderSn(timeId);
         buyOrderService.save(buyOrder);
+        //下单微信支付预付款订单
+        BuyOrderEntity buyOrderEntity = buyOrderService.getBaseMapper().selectOne(new LambdaQueryWrapper<BuyOrderEntity>().eq(BuyOrderEntity::getOrderSn, timeId));
+        WechatPaymentInfo paymentInfo = new WechatPaymentInfo();
+        paymentInfo.setOrderSn(buyOrderEntity.getOrderSn());
+        paymentInfo.setBuyOrderId(buyOrderEntity.getOrderId());
+        paymentInfo.setTotalAmount(buyOrderEntity.getRealMoney());
+        wxpayService.prepay(paymentInfo);
         return R.ok().put("orderSn", timeId);
     }