diff --git a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCollectionItemDAO.java b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCollectionItemDAO.java
index a3de5a7..cb9862f 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCollectionItemDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCollectionItemDAO.java
@@ -10,4 +10,5 @@ import org.springframework.stereotype.Repository;
  */
 @Repository
 public interface MetaCollectionItemDAO extends JpaRepository<MetaCollectionItem, Integer> {
+  MetaCollectionItem findByKey(String key);
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerContainerDAO.java b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerContainerDAO.java
new file mode 100644
index 0000000..54ebe46
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerContainerDAO.java
@@ -0,0 +1,9 @@
+package com.loafle.overflow.central.module.meta.dao;
+
+import com.loafle.overflow.model.meta.MetaCrawlerContainer;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface MetaCrawlerContainerDAO extends JpaRepository<MetaCrawlerContainer, Short> {
+}
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerMappingDAO.java b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerMappingDAO.java
index 2d862e5..a0e6fd7 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerMappingDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaCrawlerMappingDAO.java
@@ -4,9 +4,14 @@ import com.loafle.overflow.model.meta.MetaCrawlerMapping;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 /**
  * Created by insanity on 17. 6. 23.
  */
 @Repository
 public interface MetaCrawlerMappingDAO extends JpaRepository<MetaCrawlerMapping, Long> {
+  List<MetaCrawlerMapping> findAllByMetaTargetTypeId(Integer targetTypeID);
+
+  List<MetaCrawlerMapping> findAllByMetaTargetTypeKey(String targetTypeKey);
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaDisplayItemMappingDAO.java b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaDisplayItemMappingDAO.java
index 392512b..99fd533 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaDisplayItemMappingDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaDisplayItemMappingDAO.java
@@ -5,10 +5,15 @@ import org.springframework.stereotype.Repository;
 
 import com.loafle.overflow.model.meta.MetaDisplayItemMapping;
 
+import java.util.List;
+
 /**
  * Created by insanity on 17. 11. 7.
  */
 @Repository
 public interface MetaDisplayItemMappingDAO extends JpaRepository<MetaDisplayItemMapping, Short> {
 
+  List<MetaDisplayItemMapping> findAllByMetaCrawlerMappingId(Long metaCrawlerMappingID);
+
+  List<MetaDisplayItemMapping> findAllByMetaDisplayItemId(Long metaDisplayItemID);
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaItemUnitDAO.java b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaItemUnitDAO.java
index 2379339..2e76572 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaItemUnitDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/dao/MetaItemUnitDAO.java
@@ -10,4 +10,5 @@ import org.springframework.stereotype.Repository;
 
 @Repository
 public interface MetaItemUnitDAO extends JpaRepository<MetaItemUnit, Short> {
+  MetaItemUnit findByKey(String key);
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCollectionItemService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCollectionItemService.java
index f4fd68e..65d0c06 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCollectionItemService.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCollectionItemService.java
@@ -1,8 +1,10 @@
 package com.loafle.overflow.central.module.meta.service;
 
+import com.loafle.overflow.central.module.meta.dao.MetaCollectionItemDAO;
 import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.model.meta.MetaCollectionItem;
 import com.loafle.overflow.service.central.meta.MetaCollectionItemService;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -13,9 +15,22 @@ import java.util.List;
 @Service("MetaCollectionItemService")
 public class CentralMetaCollectionItemService implements MetaCollectionItemService {
 
-    @Override
-    public List<MetaCollectionItem> readAll() throws OverflowException {
-        return null;
-    }
+  @Autowired
+  MetaCollectionItemDAO metaCollectionItemDAO;
+
+  @Override
+  public List<MetaCollectionItem> readAll() throws OverflowException {
+      return this.metaCollectionItemDAO.findAll();
+  }
+
+  @Override
+  public MetaCollectionItem readByKey(String key) throws OverflowException {
+    return this.metaCollectionItemDAO.findByKey(key);
+  }
+
+  @Override
+  public MetaCollectionItem readByID(Integer id) throws OverflowException {
+    return this.metaCollectionItemDAO.getOne(id);
+  }
 
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerContainerService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerContainerService.java
new file mode 100644
index 0000000..5798a8c
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerContainerService.java
@@ -0,0 +1,18 @@
+package com.loafle.overflow.central.module.meta.service;
+
+import com.loafle.overflow.central.module.meta.dao.MetaCrawlerContainerDAO;
+import com.loafle.overflow.core.exception.OverflowException;
+import com.loafle.overflow.model.meta.MetaCrawlerContainer;
+import com.loafle.overflow.service.central.meta.MetaCrawlerContainerService;
+import org.springframework.beans.factory.annotation.Autowired;
+
+public class CentralMetaCrawlerContainerService implements MetaCrawlerContainerService {
+
+  @Autowired
+  private MetaCrawlerContainerDAO metaCrawlerContainerDAO;
+
+  @Override
+  public MetaCrawlerContainer regist(MetaCrawlerContainer metaCrawlerContainer) throws OverflowException {
+    return this.metaCrawlerContainerDAO.save(metaCrawlerContainer);
+  }
+}
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerMappingService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerMappingService.java
index 82fc6c3..8a24f91 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerMappingService.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaCrawlerMappingService.java
@@ -23,4 +23,19 @@ public class CentralMetaCrawlerMappingService implements MetaCrawlerMappingServi
   public List<MetaCrawlerMapping> readAll() throws OverflowException {
     return this.metaCrawlerMappingDAO.findAll();
   }
+
+  @Override
+  public List<MetaCrawlerMapping> readAllByMetaTargetTypeID(Integer targetTypeID) throws OverflowException {
+    return this.metaCrawlerMappingDAO.findAllByMetaTargetTypeId(targetTypeID);
+  }
+
+  @Override
+  public List<MetaCrawlerMapping> readAllByMetaTargetTypeKey(String targetTypeKey) throws OverflowException {
+    return this.metaCrawlerMappingDAO.findAllByMetaTargetTypeKey(targetTypeKey);
+  }
+
+  @Override
+  public MetaCrawlerMapping regist(MetaCrawlerMapping metaCrawlerMapping) throws OverflowException {
+    return this.metaCrawlerMappingDAO.save(metaCrawlerMapping);
+  }
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemMappingService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemMappingService.java
index 0e7827e..d9713e9 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemMappingService.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemMappingService.java
@@ -1,21 +1,45 @@
 package com.loafle.overflow.central.module.meta.service;
 
+import com.loafle.overflow.central.module.meta.dao.MetaDisplayItemMappingDAO;
 import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.model.meta.MetaDisplayItemMapping;
 import com.loafle.overflow.service.central.meta.MetaDisplayItemMappingService;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 /**
  * Created by insanity on 17. 11. 7.
  */
 @Service("MetaDisplayItemMappingService")
 public class CentralMetaDisplayItemMappingService implements MetaDisplayItemMappingService {
-  // @Autowired
-  // private MetaSensorDisplayMappingDAO mappingDAO;
+   @Autowired
+   private MetaDisplayItemMappingDAO metaDisplayItemMappingDAO;
 
   @Override
   public MetaDisplayItemMapping regist(MetaDisplayItemMapping metaDisplayItemMapping) throws OverflowException {
+    return this.metaDisplayItemMappingDAO.save(metaDisplayItemMapping);
+  }
+
+  @Override
+  public List<MetaDisplayItemMapping> readAllByMetaDisplayItemID(Long metaDisplayItemID) throws OverflowException {
+    return this.metaDisplayItemMappingDAO.findAllByMetaDisplayItemId(metaDisplayItemID);
+  }
+
+  @Override
+  public List<MetaDisplayItemMapping> readAllByMetaCrawlerMappingID(Long metaCrawlerMappingID) throws OverflowException {
+    return this.metaDisplayItemMappingDAO.findAllByMetaCrawlerMappingId(metaCrawlerMappingID);
+  }
+
+  @Override
+  public MetaDisplayItemMapping read(Long ID) throws OverflowException {
     return null;
   }
+
+  @Override
+  public List<MetaDisplayItemMapping> readAll() throws OverflowException {
+    return this.metaDisplayItemMappingDAO.findAll();
+  }
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemService.java
index 3e5387b..d5f1194 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemService.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaDisplayItemService.java
@@ -1,25 +1,34 @@
 package com.loafle.overflow.central.module.meta.service;
 
+import com.loafle.overflow.central.module.meta.dao.MetaDisplayItemDAO;
 import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.model.meta.MetaDisplayItem;
 import com.loafle.overflow.service.central.meta.MetaDisplayItemService;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
 /**
  * Created by insanity on 17. 9. 20.
  */
 @Service("MetaDisplayItemService")
 public class CentralMetaDisplayItemService implements MetaDisplayItemService {
-  // @Autowired
-  // private MetaSensorDisplayItemDAO metaSensorDisplayItemDAO;
+   @Autowired
+   private MetaDisplayItemDAO metaDisplayItemDAO;
 
   @Override
   public MetaDisplayItem regist(MetaDisplayItem metaDisplayItem) throws OverflowException {
-    return null;
+    return this.metaDisplayItemDAO.save(metaDisplayItem);
   }
 
   @Override
   public MetaDisplayItem read(Long id) throws OverflowException {
     return null;
   }
+
+  @Override
+  public List<MetaDisplayItem> readAll() throws OverflowException {
+    return this.metaDisplayItemDAO.findAll();
+  }
 }
diff --git a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaItemUnitService.java b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaItemUnitService.java
index 3e45aae..534895f 100644
--- a/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaItemUnitService.java
+++ b/src/main/java/com/loafle/overflow/central/module/meta/service/CentralMetaItemUnitService.java
@@ -1,9 +1,11 @@
 package com.loafle.overflow.central.module.meta.service;
 
+import com.loafle.overflow.central.module.meta.dao.MetaItemUnitDAO;
 import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.model.meta.MetaItemUnit;
 import com.loafle.overflow.service.central.meta.MetaItemUnitService;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 /**
@@ -13,8 +15,21 @@ import org.springframework.stereotype.Service;
 @Service("MetaSensorItemUnitService")
 public class CentralMetaItemUnitService implements MetaItemUnitService {
 
+  @Autowired
+  MetaItemUnitDAO metaItemUnitDAO;
+
 	@Override
 	public MetaItemUnit regist(MetaItemUnit metaItemUnit) throws OverflowException {
-		return null;
+		return this.metaItemUnitDAO.save(metaItemUnit);
 	}
+
+  @Override
+  public MetaItemUnit read(Short ID) throws OverflowException {
+    return null;
+  }
+
+  @Override
+  public MetaItemUnit readByKey(String key) throws OverflowException {
+    return this.metaItemUnitDAO.findByKey(key);
+  }
 }