diff --git a/src/main/java/com/loafle/overflow/module/commons/OFService.java b/src/main/java/com/loafle/overflow/module/commons/OFService.java
new file mode 100644
index 0000000..d28c451
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/module/commons/OFService.java
@@ -0,0 +1,21 @@
+package com.loafle.overflow.module.commons;
+
+import org.codehaus.jackson.map.ObjectMapper;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Created by insanity on 17. 6. 28.
+ */
+public class OFService {
+
+    @Autowired
+    private ObjectMapper mapper;
+
+    public String toString(Object o) {
+        try {
+            return mapper.writeValueAsString(o);
+        }catch(Exception e) {
+            return e.getMessage();
+        }
+    }
+}
diff --git a/src/main/java/com/loafle/overflow/module/target/service/TargetService.java b/src/main/java/com/loafle/overflow/module/target/service/TargetService.java
new file mode 100644
index 0000000..c8e809a
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/module/target/service/TargetService.java
@@ -0,0 +1,27 @@
+package com.loafle.overflow.module.target.service;
+
+
+import com.loafle.overflow.module.commons.OFService;
+import com.loafle.overflow.module.target.dao.TargetDAO;
+import com.loafle.overflow.module.target.model.Target;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Created by insanity on 17. 6. 28.
+ */
+public class TargetService extends OFService {
+
+    @Autowired
+    private TargetDAO targetDAO;
+
+    public String regist(Target target) {
+        Target t = this.targetDAO.save(target);
+        return toString(t);
+    }
+
+    public String read(String id) {
+        Target t = this.targetDAO.findOne(Long.valueOf(id));
+        return toString(t);
+    }
+
+}