#13 spring db: mybatis - basic

spring-db/src/main/java/hello/itemservice/ItemServiceApplication.java

@@ -16,7 +16,8 @@ import javax.sql.DataSource;
 //@Import(MemoryConfig.class)
 //@Import(JdbcTemplateV1Config.class)
 //@Import(JdbcTemplateV2Config.class)
-@Import(JdbcTemplateV3Config.class)
+//@Import(JdbcTemplateV3Config.class)
+@Import(MyBatisConfig.class)
 @SpringBootApplication(scanBasePackages = "hello.itemservice.web")
 public class ItemServiceApplication {
 

spring-db/src/main/java/hello/itemservice/config/MyBatisConfig.java

@@ -0,0 +1,27 @@
+package hello.itemservice.config;
+
+import hello.itemservice.repository.ItemRepository;
+import hello.itemservice.repository.mybatis.ItemMapper;
+import hello.itemservice.repository.mybatis.MyBatisItemRepository;
+import hello.itemservice.service.ItemService;
+import hello.itemservice.service.ItemServiceV1;
+import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@RequiredArgsConstructor
+public class MyBatisConfig {
+
+    private final ItemMapper itemMapper;
+
+    @Bean
+    public ItemService itemService() {
+        return new ItemServiceV1(itemRepository());
+    }
+
+    @Bean
+    public ItemRepository itemRepository() {
+        return new MyBatisItemRepository(itemMapper);
+    }
+}

spring-db/src/main/java/hello/itemservice/repository/mybatis/ItemMapper.java

@@ -0,0 +1,23 @@
+package hello.itemservice.repository.mybatis;
+
+import hello.itemservice.domain.Item;
+import hello.itemservice.repository.ItemSearchCond;
+import hello.itemservice.repository.ItemUpdateDto;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+import java.util.Optional;
+
+@Mapper
+public interface ItemMapper {
+
+    void save(Item item);
+
+    void update(@Param("id") Long id,
+                @Param("updateParam")ItemUpdateDto updateParam);
+
+    List<Item> findAll(ItemSearchCond itemSearchCond);
+
+    Optional<Item> findById(Long id);
+}

spring-db/src/main/java/hello/itemservice/repository/mybatis/MyBatisItemRepository.java

@@ -0,0 +1,39 @@
+package hello.itemservice.repository.mybatis;
+
+import hello.itemservice.domain.Item;
+import hello.itemservice.repository.ItemRepository;
+import hello.itemservice.repository.ItemSearchCond;
+import hello.itemservice.repository.ItemUpdateDto;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+import java.util.Optional;
+
+@Repository
+@RequiredArgsConstructor
+public class MyBatisItemRepository implements ItemRepository {
+
+    private final ItemMapper itemMapper;
+
+    @Override
+    public Item save(Item item) {
+        itemMapper.save(item);
+        return item;
+    }
+
+    @Override
+    public void update(Long itemId, ItemUpdateDto updateParam) {
+        itemMapper.update(itemId, updateParam);
+    }
+
+    @Override
+    public Optional<Item> findById(Long id) {
+        return itemMapper.findById(id);
+    }
+
+    @Override
+    public List<Item> findAll(ItemSearchCond cond) {
+        return itemMapper.findAll(cond);
+    }
+}

spring-db/src/main/resources/application.properties

@@ -9,4 +9,6 @@ spring.datasource.username=sa
 #Mybatis
 mybatis.type-aliases-package=hello.itemservice.domain
 mybatis.configuration.map-underscore-to-camel-case=true
-logging.level.hello.itemservice.repository.mybatis=trace
+logging.level.hello.itemservice.repository.mybatis=trace
+
+mybatis.mapper-locations=classpath:mapper/**/*.xml

spring-db/src/main/resources/mapper/ItemMapper.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="hello.itemservice.repository.mybatis.ItemMapper">
+
+    <insert id="save" useGeneratedKeys="true" keyProperty="id">
+        insert into item (item_name, price, quantity)
+        values (#{itemName}, #{price}, #{quantity})
+    </insert>
+    <update id="update">
+        update item
+        set item_name=#{updateParam.itemName},
+            price=#{updateParam.price},
+            quantity=#{updateParam.quantity}
+        where id = #{id}
+    </update>
+    <select id="findById" resultType="Item">
+        select id, item_name, price, quantity
+        from item
+        where id = #{id}
+    </select>
+    <select id="findAll" resultType="Item">
+        select id, item_name, price, quantity
+        from item
+        <where>
+            <if test="itemName != null and itemName != ''">
+                and item_name like concat('%',#{itemName},'%')
+            </if>
+            <if test="maxPrice != null">
+                and price &lt;= #{maxPrice}
+            </if>
+        </where>
+    </select>
+
+
+</mapper>

spring-db/src/test/resources/application.properties

@@ -9,4 +9,6 @@ logging.level.org.springframework.jdbc=debug
 #Mybatis
 mybatis.type-aliases-package=hello.itemservice.domain
 mybatis.configuration.map-underscore-to-camel-case=true
-logging.level.hello.itemservice.repository.mybatis=trace
+logging.level.hello.itemservice.repository.mybatis=trace
+
+mybatis.mapper-locations=classpath:mapper/**/*.xml