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 bfc799b..f1b0aba 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
@@ -38,6 +38,7 @@ import static com.egzosn.pay.common.http.UriVariables.getMapToParameters;
 public class ClientHttpRequest<T> extends HttpEntityEnclosingRequestBase implements org.apache.http.client.ResponseHandler<T> {
     protected static final Log LOG = LogFactory.getLog(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-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 9d86e36..ce72660 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
@@ -1,30 +1,69 @@
 package com.egzosn.pay.wx.api;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URLEncoder;
+import java.security.GeneralSecurityException;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.SortedMap;
+import java.util.TreeMap;
+import java.util.zip.GZIPInputStream;
+
+import static com.egzosn.pay.wx.api.WxConst.APPID;
+import static com.egzosn.pay.wx.api.WxConst.CIPHER_ALGORITHM;
+import static com.egzosn.pay.wx.api.WxConst.FAIL;
+import static com.egzosn.pay.wx.api.WxConst.FAILURE;
+import static com.egzosn.pay.wx.api.WxConst.HMACSHA256;
+import static com.egzosn.pay.wx.api.WxConst.HMAC_SHA256;
+import static com.egzosn.pay.wx.api.WxConst.MCH_ID;
+import static com.egzosn.pay.wx.api.WxConst.NONCE_STR;
+import static com.egzosn.pay.wx.api.WxConst.OUT_TRADE_NO;
+import static com.egzosn.pay.wx.api.WxConst.RESULT_CODE;
+import static com.egzosn.pay.wx.api.WxConst.RETURN_CODE;
+import static com.egzosn.pay.wx.api.WxConst.RETURN_MSG_CODE;
+import static com.egzosn.pay.wx.api.WxConst.SANDBOXNEW;
+import static com.egzosn.pay.wx.api.WxConst.SIGN;
+import static com.egzosn.pay.wx.api.WxConst.SUCCESS;
+import static com.egzosn.pay.wx.api.WxConst.URI;
+import static com.egzosn.pay.wx.bean.WxTransferType.GETTRANSFERINFO;
+import static com.egzosn.pay.wx.bean.WxTransferType.QUERY_BANK;
+import static com.egzosn.pay.wx.bean.WxTransferType.TRANSFERS;
+
 import com.alibaba.fastjson.JSONObject;
 import com.egzosn.pay.common.api.BasePayService;
-import com.egzosn.pay.common.bean.*;
+import com.egzosn.pay.common.bean.MethodType;
+import com.egzosn.pay.common.bean.PayMessage;
+import com.egzosn.pay.common.bean.PayOrder;
+import com.egzosn.pay.common.bean.PayOutMessage;
+import com.egzosn.pay.common.bean.RefundOrder;
+import com.egzosn.pay.common.bean.SignType;
+import com.egzosn.pay.common.bean.TransactionType;
+import com.egzosn.pay.common.bean.TransferOrder;
 import com.egzosn.pay.common.bean.result.PayException;
 import com.egzosn.pay.common.exception.PayErrorException;
+import com.egzosn.pay.common.http.ClientHttpRequest;
 import com.egzosn.pay.common.http.HttpConfigStorage;
+import com.egzosn.pay.common.http.HttpStringEntity;
 import com.egzosn.pay.common.util.DateUtils;
 import com.egzosn.pay.common.util.Util;
 import com.egzosn.pay.common.util.XML;
 import com.egzosn.pay.common.util.sign.SignUtils;
 import com.egzosn.pay.common.util.sign.encrypt.RSA2;
 import com.egzosn.pay.common.util.str.StringUtils;
-import com.egzosn.pay.wx.bean.*;
-
-import java.io.*;
-import java.net.URLEncoder;
-import java.security.GeneralSecurityException;
-import java.util.*;
-import java.util.zip.GZIPInputStream;
-import java.util.zip.GZIPOutputStream;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-
-import static com.egzosn.pay.wx.api.WxConst.*;
-import static com.egzosn.pay.wx.bean.WxTransferType.*;
+import com.egzosn.pay.wx.bean.RedpackOrder;
+import com.egzosn.pay.wx.bean.WxPayError;
+import com.egzosn.pay.wx.bean.WxPayMessage;
+import com.egzosn.pay.wx.bean.WxRefundResult;
+import com.egzosn.pay.wx.bean.WxSendredpackType;
+import com.egzosn.pay.wx.bean.WxTransactionType;
+import com.egzosn.pay.wx.bean.WxTransferType;
 
 /**
  * 微信支付服务
@@ -305,7 +344,8 @@ public class WxPayService extends BasePayService<WxPayConfigStorage> implements
         String sign = createSign(SignUtils.parameterText(parameters, "&", SIGN, "appId"), payConfigStorage.getInputCharset(), false);
         parameters.put(SIGN, sign);
 
-        JSONObject result = requestTemplate.postForObject(getReqUrl(WxTransactionType.GETSIGNKEY), XML.getMap2Xml(parameters), JSONObject.class);
+        HttpStringEntity entity = new HttpStringEntity(XML.getMap2Xml(parameters), ClientHttpRequest.APPLICATION_XML_UTF_8);
+        JSONObject result = requestTemplate.postForObject(getReqUrl(WxTransactionType.GETSIGNKEY), entity, JSONObject.class);
         if (SUCCESS.equals(result.get(RETURN_CODE))) {
             return result.getString("sandbox_signkey");
         }