diff --git a/src/main/java/com/sunyard/sge/database/SydApi4Database.java b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
index 492e357..f3d93f6 100644
--- a/src/main/java/com/sunyard/sge/database/SydApi4Database.java
+++ b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
@@ -161,7 +161,6 @@ public class SydApi4Database implements SydApi {
         if (null == this.hsms || this.hsms.length < 1) {
             throw new SydApiException(-1);
         }
-
         byte[] procData = null;
         if (2 == iPkgNum || 3 == iPkgNum) {
             procData = Util.hexString2Bytes(pcProcData);
@@ -169,6 +168,9 @@ public class SydApi4Database implements SydApi {
 
         }
         SydApiException le = null;
+        LockableObject lockableObject = new LockableObject();
+        lockableObject.lock();
+        try {
         for (SydApi4j api : this.hsms) {
             if (null == api) {
                 continue;
@@ -190,6 +192,13 @@ public class SydApi4Database implements SydApi {
                 throw e;
             }
         }
+        }
+        catch (Exception e){
+
+        }
+        finally {
+            lockableObject.unlock();
+        }
         throw le;
     }
 
diff --git a/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java b/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java
index 8c05e9e..9de6864 100644
--- a/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java
+++ b/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java
@@ -69,16 +69,12 @@ public class SydApiPool extends ThreadBasedConnectPool<SydApi> {
         for (int i = 0; i < length; i++) {
             if (null != hsms[i]) {
                 try {
-                    l.lock();
                     o.SYD_SM3_Hash_ShortData(new byte[8]);
                     ifBoolean = true;
                 } catch (Exception e) {
                     // 忽略
                     hsms[i] = null;
                 }
-                finally {
-                    l.unlock();
-                }
             }
         }
             return ifBoolean;