diff --git a/src/main/java/com/sunyard/sge/database/SydApi4Database.java b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
index bb1191d..929e4a9 100644
--- a/src/main/java/com/sunyard/sge/database/SydApi4Database.java
+++ b/src/main/java/com/sunyard/sge/database/SydApi4Database.java
@@ -14,7 +14,7 @@ import java.util.List;
  * 上海黄金交易所 - 数据库加密方案
  */
 public class SydApi4Database implements SydApi {
-
+    static Logger log = LogFactory.getLogger();
     private SydApi4j[] hsms = null;
     private boolean isShortLinkMode = false;
 
@@ -28,7 +28,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public SydApi SYD_Short_Connect_Ex(String[] pcIpList, int[] iPortList, int iConnectTimeOut, int allDealTimeOut) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_Connect_Ex方法接收参数:pcIpList:{},iPortList:{},iConnectTimeOut:{},iDealTimeOut:{}", Arrays.toString(pcIpList), Arrays.toString(iPortList), iConnectTimeOut, allDealTimeOut);
         }
@@ -39,18 +38,26 @@ public class SydApi4Database implements SydApi {
 
         SydApi4j[] apis = new SydApi4j[pcIpList.length];
         int iDealTimeOut = allDealTimeOut / pcIpList.length;
+        boolean connected = false;
         for (int i = 0; i < pcIpList.length ; i++) {
 
             try {
 
                 apis[i] = (SydApi4j) new SydApi4j().connect(pcIpList[i], iPortList[i], null, iConnectTimeOut, iDealTimeOut);
-
-            }catch ( Exception e) {
+                connected = true;
+            }
+            catch ( Exception e) {
                 // 忽略错误
                 log.error("网络连接错误 {} {} - 忽略",pcIpList[i], iPortList[i]);
             }
 
         }
+        if( ! connected ) {
+            // TODO
+            throw new SydApiException("连接错误",-1);
+        }
+
+
 
         hsms = apis;
         isShortLinkMode = true;
@@ -76,11 +83,12 @@ public class SydApi4Database implements SydApi {
             }
         }
         // 配合链接池，不再需要释放。
+
+
     }
 
     @Override
     public String SYD_SM3_Hash_ShortData(byte[] pcData) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM3_Hash_ShortData方法接收参数：pcData：{}", Arrays.toString(pcData));
         }
@@ -90,6 +98,11 @@ public class SydApi4Database implements SydApi {
 
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+
+            if ( null == api ) {
+                continue;
+            }
+
             try {
                 byte[] hash = api.SYD_SM3_LongData(pcData, null, 0);
                 log.debug("api.SYD_SM3_LongData方法返回值：{}",Arrays.toString(hash));
@@ -107,7 +120,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public LongDataReturn<String, String> SYD_SM3_Hash_LongData(byte[] pcData, int iPkgNum, String pcProcData) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM3_Hash_LongData方法接收参数：pcData：{},iPkgNum：{},pcProcData：{}", Arrays.toString(pcData), iPkgNum, pcProcData);
         }
@@ -124,6 +136,9 @@ public class SydApi4Database implements SydApi {
         }
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 byte[] hash = api.SYD_SM3_LongData(pcData, procData, iPkgNum);
                 log.debug("api.SYD_SM3_LongData方法返回值：{}",Arrays.toString(hash));
@@ -145,7 +160,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public byte[] SYD_SM4_ShortData(int iKeyIndex, byte[] pcData, int iFlag) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4_ShortData方法接收参数：iKeyIndex：{},pcData：{},iFlag：{}", iKeyIndex, Arrays.toString(pcData), iFlag);
         }
@@ -159,8 +173,10 @@ public class SydApi4Database implements SydApi {
         String keyIndex = String.format("%08d", iKeyIndex);
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
-
                 if (Consts.ECB_ENC == iFlag) {
                     return api.SYMEncryptData(
                             com.sunyard.SydApi.NALG_SM4,
@@ -187,7 +203,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public List<byte[]> SYD_SM4_BatchData(int[] iKeyIndex, List<byte[]> pcData, int iFlag) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4_BatchData方法接收参数：iKeyIndex：{},pcData元素个数为：{},iFlag：{}", iKeyIndex, pcData.size(), iFlag);
         }
@@ -209,6 +224,9 @@ public class SydApi4Database implements SydApi {
 
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 if (Consts.ECB_ENC == iFlag) {
                     return api.SYMEncryptDecryptBatchData(8, 1, null, keys, 1, pcData);
@@ -229,7 +247,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public byte[] SYD_SM4_LongData(int iKeyIndex, byte[] pcData, int iPkgNum, int iFlag) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4_LongData方法接收参数：iKeyIndex：{},pcData：{},iPkgNum：{},iFlag：{}", iKeyIndex, Arrays.toString(pcData), iPkgNum, iFlag);
         }
@@ -243,6 +260,9 @@ public class SydApi4Database implements SydApi {
 
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 if (Consts.ECB_ENC == iFlag) {
                     return api.SYD_SM4_LongData(
@@ -273,7 +293,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public String[] SYD_SM4Mac_BatchData(int[] iKeyIndex, List<byte[]> pcData) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_BatchData：iKeyIndex：{},pcData元素个数为：{}", iKeyIndex, pcData.size());
         }
@@ -287,6 +306,9 @@ public class SydApi4Database implements SydApi {
         }
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 List<byte[]> list = api.SYMEncryptDecryptBatchData(8, 2, null, keys, 1, pcData);
                 String[] ret = new String[list.size()];
@@ -311,7 +333,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public boolean[] SYD_SM4Mac_BatchData(int[] iKeyIndex, List<byte[]> pcData, String[] pcMac) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_BatchData方法接收参数：iKeyIndex：{},pcData元素个数为：{},pcMac：{}", iKeyIndex, pcData.size(), Arrays.toString(pcMac));
         }
@@ -325,6 +346,9 @@ public class SydApi4Database implements SydApi {
         }
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 List<byte[]> list = api.SYMEncryptDecryptBatchData(8, 2, null, keys, 1, pcData);
                 boolean[] ret = new boolean[list.size()];
@@ -349,7 +373,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public LongDataReturn<String, String> SYD_SM4Mac_LongData(int iKeyIndex, byte[] pcData, int iPkgNum, String pcProcData) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_LongData方法接收参数：iKeyIndex：{},pcData：{},iPkgNum：{},pcProcData：{}", iKeyIndex, Arrays.toString(pcData), iPkgNum, pcProcData);
         }
@@ -368,6 +391,9 @@ public class SydApi4Database implements SydApi {
 
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
                 byte[] ret = api.SYD_SM4_LongData(
                         8,
@@ -400,7 +426,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public LongDataReturn<String, Boolean> SYD_SM4Mac_LongData(int iKeyIndex, byte[] pcData, int iPkgNum, String pcProcData, String pcMac) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_LongData方法接收参数：iKeyIndex：{},pcData：{},iPkgNum：{},pcProcData：{}", iKeyIndex, Arrays.toString(pcData), iPkgNum, pcProcData, pcMac);
         }
@@ -417,7 +442,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public String SYD_SM4Mac_ShortData(int iKeyIndex, byte[] pcData) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_ShortData方法接收参数：iKeyIndex：{},pcData：{},iFlag：{}", iKeyIndex, Arrays.toString(pcData));
         }
@@ -429,6 +453,9 @@ public class SydApi4Database implements SydApi {
         log.debug("\"SK\" + SYMUtil.genPrivateKeyMark方法返回值：{}",keyIndex);
         SydApiException le = null;
         for (SydApi4j api : this.hsms) {
+            if ( null == api ) {
+                continue;
+            }
             try {
 
                 return api.SYD_SM4Mac_ShortData(keyIndex, pcData);
@@ -446,7 +473,6 @@ public class SydApi4Database implements SydApi {
 
     @Override
     public boolean SYD_SM4Mac_ShortData(int iKeyIndex, byte[] pcData, String pcMac) {
-        Logger log = LogFactory.getLogger();
         if (LogFactory.iLogLevel==3) {
             log.debug("SYD_SM4Mac_ShortData方法接收参数：{}", iKeyIndex, Arrays.toString(pcData), pcMac);
         }
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 cab7c58..4650f7c 100644
--- a/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java
+++ b/src/main/java/com/sunyard/sge/database/pool/SydApiPool.java
@@ -1,5 +1,6 @@
 package com.sunyard.sge.database.pool;
 
+import com.sunyard.SydApiException;
 import com.sunyard.sge.database.SydApi;
 import com.sunyard.sge.database.SydApi4Database;
 import com.sunyard.sge.log.LogFactory;
@@ -41,6 +42,12 @@ public class SydApiPool extends ThreadBasedConnectPool<SydApi> {
             }
         }
 
+        if( ! connected ) {
+            // TODO
+            throw new SydApiException("连接错误",-1);
+        }
+
+
         return new SydApi4Database( apis );
     }