bug fix

whole-estate/src/main/java/com/example/wholeestate/service/impl/CustomerServiceImpl.java

         Customer customer = JSONObject.parseObject(parameter, Customer.class);
 
         UpdateWrapper<Customer> updateWrapper = new UpdateWrapper<>();
-        updateWrapper.set("customerName", customer.getCustomerName());
+        updateWrapper.set("customer_name", customer.getCustomerName());
         updateWrapper.set("name", customer.getName());
         updateWrapper.set("phone", customer.getPhone());
         updateWrapper.set("idNum", customer.getIdNum());