diff --git a/.project b/.project
index 72f65b4..463409a 100644
--- a/.project
+++ b/.project
@@ -32,5 +32,6 @@
 		<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
 		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+		<nature>net.sf.eclipse.tomcat.tomcatnature</nature>
 	</natures>
 </projectDescription>
diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index 650f494..d324b19 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -28,7 +28,7 @@
 public class Instance extends Entity {
 	private String name;
 	private State state;
-	private StageModel stage;
+	private String stage;
 
 	private HashMap<String, Area> areaMap = new HashMap<>();
 	private HashMap<String, Object> objMap = new HashMap<>();
@@ -43,7 +43,7 @@
 	 * (�����͌����_�ł̉��̂���)
 	 * @param name �C���X�^���X��
 	 */
-	public Instance(String name, State state, StageModel stageModel) {
+	public Instance(String name, State state, String stageModel) {
 		setName(name);
 		setState(state);
 		setStage(stageModel);
@@ -57,7 +57,7 @@
 		return state;
 	}
 	
-	public StageModel getStage() {
+	public String getStage() {
 		return stage;
 	}
 
@@ -83,11 +83,7 @@
 	
 	@JSONHint(ignore = true)
 	public List<Character> getCharacters() {
-		List<Character> characters = new ArrayList<>();
-		for (Character character : characterMap.values()) {
-			characters.add(character);
-		}
-		return characters;
+		return new ArrayList<Character>(characterMap.values());
 	}
 
 	@JSONHint(ignore = true)
@@ -103,7 +99,7 @@
 		this.state = state;
 	}
 	
-	public void setStage(StageModel stage) {
+	public void setStage(String stage) {
 		this.stage = stage;
 	}
 
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index d57dd01..45039ed 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -53,7 +53,7 @@
 	 * @param stageModel
 	 * @return
 	 */
-	public IDAddressedEntity createInstance(String name, Instance.State state, StageModel stageModel) {
+	public IDAddressedEntity createInstance(String name, Instance.State state, String stageModel) {
 		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC, instanceMap.keySet());
 		Instance instance = new Instance(name, state, stageModel);
 		instanceMap.put(id, instance);
@@ -78,13 +78,9 @@
 		return instanceMap.get(instanceId);
 	}
 	
-//	public List<Player> getPlayers() {
-//		//playerMap.values().toArray()
-////		List<Player> players = new ArrayList<>();
-////		for (Player player : playerMap.values().) {
-////			//players.
-////		}
-//	}
+	public List<Player> getPlayers() {
+		return new ArrayList<Player>(playerMap.values());
+	}
 	
 	public Player getPlayer(String playerId) {
 		return playerMap.get(playerId);
diff --git a/src/main/java/cactusServer/resources/InstancesRest.java b/src/main/java/cactusServer/resources/InstancesRest.java
index 38e6427..ebd3de6 100644
--- a/src/main/java/cactusServer/resources/InstancesRest.java
+++ b/src/main/java/cactusServer/resources/InstancesRest.java
@@ -3,6 +3,9 @@
 import java.util.HashSet;
 import java.util.Map;
 
+import javax.validation.Valid;
+import javax.ws.rs.BeanParam;
+import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.FormParam;
 import javax.ws.rs.GET;
@@ -14,6 +17,8 @@
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 
+import org.glassfish.jersey.process.internal.RequestScoped;
+
 import cactusServer.entities.AddressedEntity;
 import cactusServer.entities.Angle;
 import cactusServer.entities.Area;
@@ -32,6 +37,7 @@
 
 
 @Path("/instances")
+@RequestScoped
 public class InstancesRest {
 	public static final String INSTANCES_URI = "/CactusServer/rest/instances";
 	public InstancesRest() {
@@ -91,34 +97,35 @@
 	
 
 
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@FormParam("name") String name, @FormParam("state") Instance.State state, @FormParam("stageModel") StageModel stageModel) {
-//		IDAddressedEntity ae = Instances.getInstance().createInstance(name, state, stageModel);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + ae.getId()), ae.getBody());
-//	}
-//	
-//	@Path("/{instanceId}/areas")
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("name") String name, 
-//			@FormParam("region") Plain[] region, @FormParam("permissions") HashSet<Allowed> permissions) {
-//		Instance instance = Instances.getInstance().getInstance(instanceId);
-//		IDAddressedEntity ae = instance.createArea(name, region, permissions);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/areas/" + ae.getId()), ae.getBody());
-//	}
-//	
-//	@Path("/{instanceId}/objects")
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("position") Position3D position,
-//			@FormParam("velocity") Velocity3D velocity, @FormParam("angularVelocity") AngularVelocity3D angularVelocity,
-//			@FormParam("angle") Angle angle, @FormParam("attribute") Attribute attribute, @FormParam("model") ObjectModel model) {
-//		Instance instance = Instances.getInstance().getInstance(instanceId);
-//		IDAddressedEntity ae = instance.createObject(position, velocity, angularVelocity, angle, attribute, model);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/objects/" + ae.getId()), ae.getBody());
-//	} 
-//	
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity create(@FormParam("int") int a, @FormParam("name") String name, @FormParam("state") Instance.State state, @FormParam("stageModel") String stageModel) {
+		System.out.println(a);
+		IDAddressedEntity ae = Instances.getInstance().createInstance(name, Instance.State.AVAILABLE, "11111");
+		return new URIAddressedEntity((INSTANCES_URI + "/" + ae.getId()), ae.getBody());
+	}
+	
+	@Path("/{instanceId}/areas")
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity createArea(@PathParam("instanceId") String instanceId, @FormParam("name") String name, 
+			@FormParam("region") Plain[] region, @FormParam("permissions") HashSet<Allowed> permissions) {
+		Instance instance = Instances.getInstance().getInstance(instanceId);
+		IDAddressedEntity ae = instance.createArea(name, region, permissions);
+		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/areas/" + ae.getId()), ae.getBody());
+	}
+	
+	@Path("/{instanceId}/objects")
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("position") Position3D position,
+			@FormParam("velocity") Velocity3D velocity, @FormParam("angularVelocity") AngularVelocity3D angularVelocity,
+			@FormParam("angle") Angle angle, @FormParam("attribute") Attribute attribute, @FormParam("model") ObjectModel model) {
+		Instance instance = Instances.getInstance().getInstance(instanceId);
+		IDAddressedEntity ae = instance.createObject(position, velocity, angularVelocity, angle, attribute, model);
+		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/objects/" + ae.getId()), ae.getBody());
+	} 
+	
 	
 //	@DELETE
 //	@Path("/destroyInstance")
diff --git a/src/main/java/cactusServer/utils/JSONConsumer.java b/src/main/java/cactusServer/utils/JSONConsumer.java
index c3b4d23..c61d8a2 100644
--- a/src/main/java/cactusServer/utils/JSONConsumer.java
+++ b/src/main/java/cactusServer/utils/JSONConsumer.java
@@ -2,6 +2,7 @@
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 
@@ -16,30 +17,30 @@
 import net.arnx.jsonic.JSON;
 import net.arnx.jsonic.JSONException;
 
-@Provider
-@Consumes(MediaType.APPLICATION_JSON)
-public class JSONConsumer implements MessageBodyReader {
-
-	public boolean isReadable(java.lang.Class type, 
-		java.lang.reflect.Type genericType, java.lang.annotation.Annotation[] 
-		annotations, MediaType mediaType) {
-		return true;
+/**
+ * �����g�p���Ȃ��Ȃ�Ǝv��
+ * @author student
+ *
+ */
+//@Provider
+//@Consumes(MediaType.APPLICATION_JSON)
+public class JSONConsumer implements MessageBodyReader<Object> {
+	@Override
+	public boolean isReadable(Class<?> type, java.lang.reflect.Type genericType,
+			java.lang.annotation.Annotation[] annotations, MediaType mediaType) {
+		// return true;
+		return mediaType.isCompatible(MediaType.APPLICATION_JSON_TYPE);
 	}
 
-
 	@Override
-	public Object readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType,
-			MultivaluedMap httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
-		// TODO Auto-generated method stub
+	public Object readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType,
+			MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
+			throws IOException, WebApplicationException {
 		try {
-			return JSON.decode(entityStream,genericType);
+			// return JSON.decode(entityStream,genericType);
+			return JSON.decode(entityStream, type);
 		} catch (JSONException e) {
-			// TODO Auto-generated catch block
-			return null;
-		} catch (IOException e) {
-			// TODO Auto-generated catch block
 			return null;
 		}
 	}
-	
 }
\ No newline at end of file
diff --git a/src/main/java/cactusServer/utils/JSONProvider.java b/src/main/java/cactusServer/utils/JSONProvider.java
index 09819fb..4cab69f 100644
--- a/src/main/java/cactusServer/utils/JSONProvider.java
+++ b/src/main/java/cactusServer/utils/JSONProvider.java
@@ -16,23 +16,26 @@
 
 @Provider()
 @Produces(MediaType.APPLICATION_JSON)
-public class JSONProvider implements MessageBodyWriter {
-    @Override
-    public long getSize(Object arg0, Class arg1, Type arg2, Annotation[] arg3, MediaType arg4) {
-        try {
-            return JSON.encode(arg0).getBytes("UTF-8").length;
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-    }
+public class JSONProvider implements MessageBodyWriter<Object> {
+	@Override
+	public long getSize(Object obj, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+		try {
+			return JSON.encode(obj).getBytes("UTF-8").length;
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
 
-    @Override
-    public boolean isWriteable(Class arg0, Type arg1, Annotation[] arg2, MediaType arg3) {
-        return true;
-    }
+	@Override
+	public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+		// return true;
+		return mediaType.isCompatible(MediaType.APPLICATION_JSON_TYPE);
+	}
 
-    @Override
-    public void writeTo(Object arg0, Class arg1, Type arg2, Annotation[] arg3, MediaType arg4, MultivaluedMap arg5, OutputStream arg6) throws IOException, WebApplicationException {
-        JSON.encode(arg0, arg6);
-    }
+	@Override
+	public void writeTo(Object obj, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
+			MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
+			throws IOException, WebApplicationException {
+		JSON.encode(obj, entityStream);
+	}
 }
\ No newline at end of file
diff --git a/src/main/java/cactusServer/utils/MyParamConverter.java b/src/main/java/cactusServer/utils/MyParamConverter.java
new file mode 100644
index 0000000..9f2cd8e
--- /dev/null
+++ b/src/main/java/cactusServer/utils/MyParamConverter.java
@@ -0,0 +1,24 @@
+package cactusServer.utils;
+
+import javax.ws.rs.ext.ParamConverter;
+
+import cactusServer.entities.StageModel;
+import net.arnx.jsonic.JSON;
+
+public class MyParamConverter implements ParamConverter<Object> {
+	private Class<?> type;
+	
+	public MyParamConverter(Class<?> type) {
+		this.type = type;
+	}
+
+	@Override
+	public Object fromString(String value) {
+		return JSON.decode(value, type);
+	}
+
+	@Override
+	public String toString(Object obj) {
+		return JSON.encode(obj);
+	}
+}
diff --git a/src/main/java/cactusServer/utils/MyParamConverterProvider.java b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
new file mode 100644
index 0000000..fb79a8e
--- /dev/null
+++ b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
@@ -0,0 +1,21 @@
+package cactusServer.utils;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+
+import javax.ws.rs.ext.ParamConverter;
+import javax.ws.rs.ext.ParamConverterProvider;
+import javax.ws.rs.ext.Provider;
+
+import cactusServer.entities.StageModel;
+
+@Provider
+public class MyParamConverterProvider implements ParamConverterProvider {
+	@Override
+	public <T> ParamConverter<T> getConverter(Class<T> rawType, Type genericType, Annotation[] annotations) {
+		if (rawType != null && !rawType.equals(String.class)) {
+			return (ParamConverter<T>) new MyParamConverter(rawType);
+		}
+		return null;
+	}
+}