diff --git a/pay-java-ali/src/main/java/com/egzosn/pay/ali/utils/AntCertificationUtil.java b/pay-java-ali/src/main/java/com/egzosn/pay/ali/utils/AntCertificationUtil.java
index e225431..b3057cd 100644
--- a/pay-java-ali/src/main/java/com/egzosn/pay/ali/utils/AntCertificationUtil.java
+++ b/pay-java-ali/src/main/java/com/egzosn/pay/ali/utils/AntCertificationUtil.java
@@ -24,8 +24,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 
 import com.egzosn.pay.common.bean.result.PayException;
@@ -44,7 +44,7 @@ import com.egzosn.pay.common.util.str.StringUtils;
  *
  */
 public class AntCertificationUtil {
-    private static final Log LOGGER = LogFactory.getLog(AntCertificationUtil.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(AntCertificationUtil.class);
     static {
         Security.removeProvider("SunEC");
         Security.addProvider(new BouncyCastleProvider());
diff --git a/pay-java-common/pom.xml b/pay-java-common/pom.xml
index 143d887..fb24df8 100644
--- a/pay-java-common/pom.xml
+++ b/pay-java-common/pom.xml
@@ -28,8 +28,9 @@
 
         <!-- log4j  -->
         <dependency>
-            <groupId>log4j</groupId>
-            <artifactId>log4j</artifactId>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.30</version>
         </dependency>
 
         <!-- / log4j -->
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
index 38e00a9..4e0a2aa 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
@@ -11,8 +11,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.alibaba.fastjson.JSON;
 import com.egzosn.pay.common.bean.MethodType;
@@ -38,7 +39,7 @@ import com.egzosn.pay.common.util.str.StringUtils;
  *   </pre>
  */
 public abstract class BasePayService<PC extends PayConfigStorage> implements PayService<PC> {
-    protected final Log LOG = LogFactory.getLog(getClass());
+    protected final Logger LOG = LoggerFactory.getLogger(getClass());
     protected PC payConfigStorage;
 
     protected HttpRequestTemplate requestTemplate;
@@ -112,7 +113,7 @@ public abstract class BasePayService<PC extends PayConfigStorage> implements Pay
             base64ClientID = com.egzosn.pay.common.util.sign.encrypt.Base64.encode(String.format("%s:%s", user, password).getBytes("UTF-8"));
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
 
         return base64ClientID;
@@ -202,7 +203,7 @@ public abstract class BasePayService<PC extends PayConfigStorage> implements Pay
                     }
                 }
                 catch (UnsupportedEncodingException e) {
-                    LOG.error(e);
+                    LOG.error("", e);
                 }
             }
             params.put(name, valueStr);
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/DefaultPayMessageHandler.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/DefaultPayMessageHandler.java
index 496b7a3..0f136f5 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/DefaultPayMessageHandler.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/DefaultPayMessageHandler.java
@@ -1,13 +1,14 @@
 package com.egzosn.pay.common.api;
 
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.alibaba.fastjson.JSON;
 import com.egzosn.pay.common.bean.PayMessage;
 import com.egzosn.pay.common.bean.PayOutMessage;
 import com.egzosn.pay.common.exception.PayErrorException;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-import java.util.Map;
 
 /**
  * 默认处理支付回调消息的处理器接口
@@ -21,7 +22,7 @@ import java.util.Map;
  */
 public class DefaultPayMessageHandler implements PayMessageHandler<PayMessage, PayService> {
 
-    protected final Log LOG = LogFactory.getLog(DefaultPayMessageHandler.class);
+    protected final Logger LOG = LoggerFactory.getLogger(DefaultPayMessageHandler.class);
     /**
      * @param payMessage 支付消息
      * @param context    上下文，如果handler或interceptor之间有信息要传递，可以用这个
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayMessageRouter.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayMessageRouter.java
index 2fe8825..22817b7 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayMessageRouter.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayMessageRouter.java
@@ -8,8 +8,8 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.egzosn.pay.common.bean.PayMessage;
 import com.egzosn.pay.common.bean.PayOutMessage;
@@ -44,8 +44,8 @@ import com.egzosn.pay.common.util.LogExceptionHandler;
  * @author egan
  */
 public class PayMessageRouter {
+    protected final Logger LOG = LoggerFactory.getLogger(PayMessageRouter.class);
 
-    protected final Log LOG = LogFactory.getLog(PayMessageRouter.class);
     /**
      * 异步线程大小
      */
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/http/ClientHttpRequest.java b/pay-java-common/src/main/java/com/egzosn/pay/common/http/ClientHttpRequest.java
index 8b6fcce..49681ed 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/http/ClientHttpRequest.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/http/ClientHttpRequest.java
@@ -9,8 +9,8 @@ import java.net.URI;
 import java.nio.charset.Charset;
 import java.util.Map;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.http.Consts;
 import org.apache.http.Header;
 import org.apache.http.HttpEntity;
@@ -46,7 +46,7 @@ import com.egzosn.pay.common.util.str.StringUtils;
  *  </pre>
  */
 public class ClientHttpRequest<T> extends HttpEntityEnclosingRequestBase implements org.apache.http.client.ResponseHandler<T> {
-    protected static final Log LOG = LogFactory.getLog(ClientHttpRequest.class);
+    protected static final Logger LOG = LoggerFactory.getLogger(ClientHttpRequest.class);
     public static final ContentType APPLICATION_FORM_URLENCODED_UTF_8 = ContentType.create("application/x-www-form-urlencoded", Consts.UTF_8);
     public static final ContentType APPLICATION_XML_UTF_8 = ContentType.create("application/xml", Consts.UTF_8);
 
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpRequestTemplate.java b/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpRequestTemplate.java
index ae4ff73..b7b1ed3 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpRequestTemplate.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpRequestTemplate.java
@@ -4,8 +4,8 @@ import com.egzosn.pay.common.bean.MethodType;
 import com.egzosn.pay.common.bean.result.PayException;
 import com.egzosn.pay.common.exception.PayErrorException;
 import com.egzosn.pay.common.util.str.StringUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.http.HttpHost;
 import org.apache.http.auth.AuthScope;
 import org.apache.http.auth.UsernamePasswordCredentials;
@@ -44,7 +44,7 @@ import java.util.Map;
  */
 public class HttpRequestTemplate {
 
-    protected static final Log LOG = LogFactory.getLog(HttpRequestTemplate.class);
+    protected static final Logger LOG = LoggerFactory.getLogger(HttpRequestTemplate.class);
 
     protected CloseableHttpClient httpClient;
 
@@ -123,7 +123,7 @@ public class HttpRequestTemplate {
             try {
                 return sslsf = new SSLConnectionSocketFactory(SSLContext.getDefault());
             } catch (NoSuchAlgorithmException e) {
-                LOG.error(e);
+                LOG.error("", e);
             }
         }
 
@@ -149,9 +149,9 @@ public class HttpRequestTemplate {
 
             return sslsf;
         } catch (IOException e) {
-            LOG.error(e);
+            LOG.error("", e);
         } catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return null;
 
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/http/UriVariables.java b/pay-java-common/src/main/java/com/egzosn/pay/common/http/UriVariables.java
index b8bb0c0..8f59338 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/http/UriVariables.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/http/UriVariables.java
@@ -5,8 +5,8 @@ import java.net.URLEncoder;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.alibaba.fastjson.JSONObject;
 import com.egzosn.pay.common.bean.result.PayException;
@@ -22,7 +22,7 @@ import com.egzosn.pay.common.exception.PayErrorException;
  * </pre>
  */
 public final class UriVariables {
-    private static final Log LOG = LogFactory.getLog(UriVariables.class);
+    private static final Logger LOG = LoggerFactory.getLogger(UriVariables.class);
 
     private UriVariables() {
     }
@@ -213,7 +213,7 @@ public final class UriVariables {
             return URLEncoder.encode(str, enc);
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return str;
     }
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/DateUtils.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/DateUtils.java
index 5cd5111..daa6747 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/DateUtils.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/DateUtils.java
@@ -8,8 +8,8 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.TimeZone;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.http.util.Args;
 
 /**
@@ -22,7 +22,7 @@ import org.apache.http.util.Args;
  *         </pre>
  */
 public final class DateUtils {
-    private static final Log LOG = LogFactory.getLog(DateUtils.class);
+    private static final Logger LOG = LoggerFactory.getLogger(DateUtils.class);
 
     private DateUtils() {
     }
@@ -81,7 +81,7 @@ public final class DateUtils {
             return formatFor.parse(date);
         }
         catch (ParseException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return null;
     }
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/LogExceptionHandler.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/LogExceptionHandler.java
index 35550c5..01a1c46 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/LogExceptionHandler.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/LogExceptionHandler.java
@@ -2,8 +2,8 @@ package com.egzosn.pay.common.util;
 
 import com.egzosn.pay.common.api.PayErrorExceptionHandler;
 import com.egzosn.pay.common.exception.PayErrorException;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 
 
@@ -20,12 +20,12 @@ import org.apache.commons.logging.LogFactory;
  */
 public class LogExceptionHandler implements PayErrorExceptionHandler {
 
-    protected final Log log = LogFactory.getLog(PayErrorExceptionHandler.class);
+    protected final Logger LOGGER = LoggerFactory.getLogger(PayErrorExceptionHandler.class);
 
     @Override
     public void handle(PayErrorException e) {
 
-        log.error("Error happens", e);
+        LOGGER.error("Error happens", e);
 
     }
 
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/CertDescriptor.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/CertDescriptor.java
index 3577a11..2419571 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/CertDescriptor.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/CertDescriptor.java
@@ -15,8 +15,8 @@
 package com.egzosn.pay.common.util.sign;
 
 import com.egzosn.pay.common.util.str.StringUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
@@ -35,7 +35,7 @@ import java.util.Enumeration;
  * 声明：以下代码只是为了方便接入方测试而提供的样例代码，商户可以根据自己需要，按照技术文档编写。该代码仅供参考，不提供编码，性能，规范性等方面的保障
  */
 public class CertDescriptor {
-    protected static final Log LOG = LogFactory.getLog(CertDescriptor.class);
+    protected static final Logger LOG = LoggerFactory.getLogger(CertDescriptor.class);
     /**
      * 证书容器，存储对商户请求报文签名私钥证书.
      */
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SecureUtil.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SecureUtil.java
index 22839a4..24093c3 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SecureUtil.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SecureUtil.java
@@ -6,8 +6,8 @@ import java.security.NoSuchAlgorithmException;
 import java.security.PublicKey;
 import java.security.Signature;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import com.egzosn.pay.common.bean.result.PayException;
 import com.egzosn.pay.common.exception.PayErrorException;
@@ -15,7 +15,7 @@ import com.egzosn.pay.common.util.sign.encrypt.sm3.SM3Digest;
 
 public class SecureUtil {
 
-    private static final Log LOG = LogFactory.getLog(SecureUtil.class);
+    private static final Logger LOG = LoggerFactory.getLogger(SecureUtil.class);
     /**
      * 算法常量： SHA1
      */
@@ -49,7 +49,7 @@ public class SecureUtil {
             return md.digest();
         }
         catch (NoSuchAlgorithmException e) {
-            LOG.error(e);
+            LOG.error("", e);
             return null;
         }
     }
@@ -77,7 +77,7 @@ public class SecureUtil {
             return sha1StrBuff.toString().getBytes(encoding);
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
             return null;
         }
     }
@@ -139,7 +139,7 @@ public class SecureUtil {
             bytes = SecureUtil.sm3(data.getBytes(encoding));
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         StringBuilder sm3StrBuff = new StringBuilder();
         for (int i = 0; i < bytes.length; i++) {
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignUtils.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignUtils.java
index 07957ea..4c3f106 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignUtils.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignUtils.java
@@ -17,8 +17,8 @@ import java.util.UUID;
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.apache.http.message.BasicNameValuePair;
 
 import com.egzosn.pay.common.bean.SignType;
@@ -93,13 +93,13 @@ public enum SignUtils implements SignType {
                 return sb.toString().toUpperCase();
             }
             catch (NoSuchAlgorithmException e) {
-                LOG.error(e);
+                LOG.error("", e);
             }
             catch (InvalidKeyException e) {
-                LOG.error(e);
+                LOG.error("", e);
             }
             catch (UnsupportedEncodingException e) {
-                LOG.error(e);
+                LOG.error("", e);
             }
 
             throw new PayErrorException(new PayException("fail", "HMACSHA256 签名异常"));
@@ -177,7 +177,7 @@ public enum SignUtils implements SignType {
             return com.egzosn.pay.common.util.sign.encrypt.RSA2.verify(text, sign, publicKey, characterEncoding);
         }
     };
-    private static final Log LOG = LogFactory.getLog(SignUtils.class);
+    private static final Logger LOG = LoggerFactory.getLogger(SignUtils.class);
 
     /**
      * 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA.java b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA.java
index e1c0490..ec060ac 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA.java
@@ -17,8 +17,8 @@ import java.security.spec.X509EncodedKeySpec;
 
 import javax.crypto.Cipher;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * RSA
@@ -29,7 +29,7 @@ import org.apache.commons.logging.LogFactory;
  * </pre>
  */
 public class RSA {
-    private static final Log LOG = LogFactory.getLog(RSA.class);
+    private static final Logger LOG = LoggerFactory.getLogger(RSA.class);
     private static final String ALGORITHM = "RSA";
 
 
@@ -61,10 +61,10 @@ public class RSA {
             return Base64.encode(signed);
         }
         catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
 
         return null;
@@ -89,10 +89,10 @@ public class RSA {
             return Base64.encode(signed);
         }
         catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         catch (UnsupportedEncodingException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
 
         return null;
@@ -142,10 +142,10 @@ public class RSA {
             return signature.verify(Base64.decode(sign));
         }
         catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         catch (IOException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return false;
     }
@@ -168,10 +168,10 @@ public class RSA {
             return signature.verify(Base64.decode(sign));
         }
         catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         catch (IOException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return false;
     }
diff --git a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
index 10289dd..3fd521f 100644
--- a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
+++ b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
@@ -528,7 +528,7 @@ public class PayPalPayService extends BasePayService<PayPalConfigStorage> implem
                     }
                 }
                 catch (UnsupportedEncodingException e) {
-                    LOG.error(e);
+                    LOG.error("", e);
                 }
             }
             params.put(name, valueStr);
diff --git a/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java b/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
index d82fd78..6fde8a7 100644
--- a/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
+++ b/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
@@ -115,7 +115,7 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
             certDescriptor.initRootCert(payConfigStorage.getAcpRootCertInputStream());
         }
         catch (IOException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
 
 
@@ -386,10 +386,10 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
             LOG.error("verify certificate chain fail.", e);
         }
         catch (CertificateExpiredException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         catch (GeneralSecurityException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return null;
     }
diff --git a/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java b/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
index f854859..fb4c039 100644
--- a/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
+++ b/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
@@ -148,7 +148,7 @@ public class WxPayService extends BasePayService<WxPayConfigStorage> implements
             return signVerify(params, (String) params.get(SIGN));
         }
         catch (PayErrorException e) {
-            LOG.error(e);
+            LOG.error("", e);
         }
         return false;
     }