修复 sharding datasource 01 sql 创建表失败的问题

.gitignore

@@ -34,4 +34,4 @@ target/**
 
 ### IntelliJ IDEA
 .idea
-target
+target

lab-18/lab-18-sharding-datasource-01/src/main/resources/sql/lab18_orders_0.sql

@@ -50,7 +50,7 @@ CREATE TABLE `order_config` (
   `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
   `pay_timeout` int(11) DEFAULT NULL COMMENT '支付超时时间;单位：分钟',
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;
 
 SET FOREIGN_KEY_CHECKS = 1;
 

lab-18/lab-18-sharding-datasource-02/src/main/java/cn/iocoder/springboot/lab18/shardingdatasource/service/OrderService.java

@@ -2,6 +2,7 @@
 
 import cn.iocoder.springboot.lab18.shardingdatasource.dataobject.OrderDO;
 import cn.iocoder.springboot.lab18.shardingdatasource.mapper.OrderMapper;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -22,7 +23,10 @@ public void add(OrderDO order) {
         orderMapper.insert(order);
 
         // 这里先假模假样的读取一下。读取主库
-        exists = orderMapper.selectById(1);
+        exists = orderMapper.selectOne(
+                new LambdaQueryWrapper<OrderDO>()
+                        .eq(OrderDO::getUserId, order.getUserId())
+        );
         System.out.println(exists);
     }
 

lab-18/lab-18-sharding-datasource-02/src/test/java/cn/iocoder/springboot/lab18/shardingdatasource/service/OrderServiceTest.java

@@ -18,7 +18,7 @@ public class OrderServiceTest {
     @Test
     public void testAdd() {
         OrderDO order = new OrderDO();
-        order.setUserId(20);
+        order.setUserId(1);
         orderService.add(order);
     }