diff --git a/src/main/java/com/example/jerseyexercise/resources/PocchamaRest.java b/src/main/java/com/example/jerseyexercise/resources/PocchamaRest.java
new file mode 100644
index 0000000..88325d1
--- /dev/null
+++ b/src/main/java/com/example/jerseyexercise/resources/PocchamaRest.java
@@ -0,0 +1,50 @@
+package com.example.jerseyexercise.resources;
+//import jakarta.annotation.PostConstruct;
+import jakarta.ws.rs.*;
+import jakarta.ws.rs.core.MediaType;
+import org.springframework.stereotype.Component;
+import java.util.HashMap;
+import java.util.Set;
+//import javax.print.attribute.standard.Media;
+
+//get: /monaka ->全アカウントの一覧
+//post: /monaka ->新規アカウント登録
+
+//get: /monaka/{id} ->idで指定したaccountの名前を返す
+//put: /monaka/{id} ->idで指定したaccountの名前をnameに変更する
+
+
+@Path("/pocchama")
+@Component
+
+public class PocchamaRest {
+    private HashMap<String, String> accounts = new HashMap<>();
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)//returnの形をどうするか
+    public Set<String> getAccounts(){
+        return accounts.keySet();
+    }
+
+
+    @POST
+    @Consumes(MediaType.APPLICATION_FORM_URLENCODED)//こっちよく使う
+    public void signup(@FormParam("id") String id, @FormParam("name") String name) {
+        accounts.put(id, name);//nameは同じことがある
+    }
+
+
+    @Path("/{id}")
+    @GET
+    @Produces(MediaType.TEXT_PLAIN)
+    public String getName(@PathParam("id") String id) {
+        return accounts.get(id);
+    }
+
+    @Path("/{id}")
+    @PUT
+    @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
+    public void setName(@PathParam("id") String id, @FormParam("name") String name) {
+        if(accounts.get(id) == null) return;
+        accounts.put(id, name);
+    }
+}