diff --git a/src/main/java/com/data/dao/impl/UserDAOImpl.java b/src/main/java/com/data/dao/impl/UserDAOImpl.java
index 78d2342..99fba16 100644
--- a/src/main/java/com/data/dao/impl/UserDAOImpl.java
+++ b/src/main/java/com/data/dao/impl/UserDAOImpl.java
@@ -17,13 +17,13 @@ public class UserDAOImpl implements UserDAO {
 	private static Logger LOG = Logger.getLogger(UserDAOImpl.class);
 	private static SessionFactory sessionFactory = null;
 	
-	public UserDAOImpl(){
-		try {
-			sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
-		} catch (HibernateException e) {
-			LOG.error("sessionFactory建立失败，请检查配置文件" + e.getMessage());
-		}
-	}
+    static {
+        try {
+            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
+        } catch (HibernateException e) {
+            LOG.error("sessionFactory建立失败，请检查配置文件" + e.getMessage());
+        }
+    }
 	 
 	@Override
 	public UserModel load(long id){
diff --git a/src/main/java/com/data/dao/impl/WeiboDAOImpl.java b/src/main/java/com/data/dao/impl/WeiboDAOImpl.java
index 67ba3da..cb28422 100644
--- a/src/main/java/com/data/dao/impl/WeiboDAOImpl.java
+++ b/src/main/java/com/data/dao/impl/WeiboDAOImpl.java
@@ -11,13 +11,13 @@
 public class WeiboDAOImpl implements WeiboDAO {
 	private static Logger LOG = Logger.getLogger(WeiboDAOImpl.class);
 	private static SessionFactory sessionFactory = null;
-	public WeiboDAOImpl(){
-		try {
-			sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
-		} catch (HibernateException e) {
-			LOG.error("sessionFactory建立失败，请检查配置文件" + e.getMessage());
-		}
-	}
+    static {
+        try {
+            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
+        } catch (HibernateException e) {
+            LOG.error("sessionFactory建立失败，请检查配置文件" + e.getMessage());
+        }
+    }
 	@Override
 	public WeiboModel load(int id) {
 		 WeiboModel weiboModel = null;