diff --git a/src/com/hellogithub/dao/projectDao.java b/src/com/hellogithub/dao/projectDao.java
index 0d08ff2..e503890 100644
--- a/src/com/hellogithub/dao/projectDao.java
+++ b/src/com/hellogithub/dao/projectDao.java
@@ -60,7 +60,7 @@ public class projectDao {
         try {
             Connection conn = JdbcUtils.getConnection();
             QueryRunner runner = new QueryRunner();
-            String sql = "select count(*) as projectId from project";
+            String sql = "select count(*) as num from project";
             p  = runner.query(conn, sql, new BeanHandler<>(projectEntity.class));
             count = p.getProjectId();
             conn.close();
diff --git a/src/com/hellogithub/entity/projectEntity.java b/src/com/hellogithub/entity/projectEntity.java
index 7642e03..4cbb697 100644
--- a/src/com/hellogithub/entity/projectEntity.java
+++ b/src/com/hellogithub/entity/projectEntity.java
@@ -141,4 +141,14 @@ public class projectEntity {
     public void setCategoryName(String categoryName) {
         this.categoryName = categoryName;
     }
+
+    long num=0;
+
+    public long getNum() {
+        return num;
+    }
+
+    public void setNum(long num) {
+        this.num = num;
+    }
 }