diff --git a/src/main/java/com/sunyard/sge/database/SydApi4Database.java b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
index 492e357..f3fcbc9 100644
--- a/src/main/java/com/sunyard/sge/database/SydApi4Database.java
+++ b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
@@ -73,37 +73,34 @@ public class SydApi4Database implements SydApi {
         return this;
     }
 
+    void SYD_Disconnect() {
+        if (null == hsms) {
+            return;
+        }
+        try {
+            for (int i = 0; i < hsms.length; i++) {
+                SydApi4j api = hsms[i];
+                if (null != api) {
+                    try {
+                        api.disconnect();
+                    } catch (Exception e) {
+
+                    }
+                }
+            }
+        } catch (Exception e){
+
+        }
+        hsms = null;
+    }
+
     @Override
     public void SYD_Disconnect_Ex() {
 
         if (isShortLinkMode) {
-            if (null == hsms) {
-                return;
-            }
-            LockableObject lockableObject = new LockableObject();
-            try {
-                lockableObject.lock();
-                for (int i = 0; i < hsms.length; i++) {
-                    SydApi4j api = hsms[i];
-                    if (null != api) {
-                        try {
-                            api.disconnect();
-                        } catch (Exception e) {
-
-                        }
-                    }
-                }
-            }
-            catch (Exception e){
-
-            }
-            finally {
-                lockableObject.unlock();
-            }
+            SYD_Disconnect();
         }
         // 配合链接池，不再需要释放。
-
-
     }
 
     @Override