抢购优化

src/main/java/com/izouma/nineth/service/UserService.java

@@ -148,7 +148,7 @@ public class UserService {
         if (StringUtils.isNotBlank(userRegister.getPassword())) {
             user.setPassword(new BCryptPasswordEncoder().encode(userRegister.getPassword()));
         }
-        user = userRepo.saveAndFlush(user);
+        user = userRepo.save(user);
         if (Arrays.asList(env.getActiveProfiles()).contains("prod")) {
             nftService.createAccount(user.getId());
         }