diff --git a/src/main/java/org/ntlab/tampoposerver/models/Activity.java b/src/main/java/org/ntlab/tampoposerver/models/Activity.java
index efe82b0..207f3df 100644
--- a/src/main/java/org/ntlab/tampoposerver/models/Activity.java
+++ b/src/main/java/org/ntlab/tampoposerver/models/Activity.java
@@ -1,4 +1,47 @@
 package org.ntlab.tampoposerver.models;
 
 public class Activity {
+    private String userId;
+    private String activityId;
+    private String text;
+    private String updateTime;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public String getUpdateTime() {
+        return updateTime;
+    }
+
+    public void setUpdateTime(String updateTime) {
+        this.updateTime = updateTime;
+    }
+
+    public String getActivityId() {
+        return activityId;
+    }
+
+    public void setActivityId(String activityId) {
+        this.activityId = activityId;
+    }
+
+    public Activity(String u, String a, String t, String ut){
+        userId = u;
+        activityId = a;
+        text = t;
+        updateTime = ut;
+    }
 }