diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CashApi.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CashApi.java
index 07a3b416..5c00b649 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CashApi.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CashApi.java
@@ -66,7 +66,7 @@ public class CashApi extends MchApi {
 		obj.put("wxappid", obj.remove("appid"));
 		obj.put("sign", weixinSignature.sign(obj));
 		String param = XmlStream.map2xml(obj);
-		WeixinResponse response = createSSLRequestExecutor()
+		WeixinResponse response = getWeixinSSLExecutor()
 				.post(redpacket.getTotalNum() > 1 ? getRequestUri("groupredpack_send_uri")
 						: getRequestUri("redpack_send_uri"), param);
 		String text = response.getAsString()
@@ -97,7 +97,7 @@ public class CashApi extends MchApi {
 		para.put("mch_billno", outTradeNo);
 		para.put("sign", weixinSignature.sign(para));
 		String param = XmlStream.map2xml(para);
-		WeixinResponse response = createSSLRequestExecutor().post(
+		WeixinResponse response = getWeixinSSLExecutor().post(
 				getRequestUri("redpack_query_uri"), param);
 		return response.getAsObject(new TypeReference<RedpacketRecord>() {
 		});
@@ -133,7 +133,7 @@ public class CashApi extends MchApi {
 		obj.put("mch_appid", obj.remove("appid"));
 		obj.put("sign", weixinSignature.sign(obj));
 		String param = XmlStream.map2xml(obj);
-		WeixinResponse response = createSSLRequestExecutor().post(
+		WeixinResponse response = getWeixinSSLExecutor().post(
 				getRequestUri("corppayment_send_uri"), param);
 		String text = response.getAsString()
 				.replaceFirst("<mch_appid>", "<appid>")
@@ -164,7 +164,7 @@ public class CashApi extends MchApi {
 		obj.put("partner_trade_no", outTradeNo);
 		obj.put("sign", weixinSignature.sign(obj));
 		String param = XmlStream.map2xml(obj);
-		WeixinResponse response = createSSLRequestExecutor().post(
+		WeixinResponse response = getWeixinSSLExecutor().post(
 				getRequestUri("corppayment_query_uri"), param);
 		return response.getAsObject(new TypeReference<CorpPaymentRecord>() {
 		});
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CouponApi.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CouponApi.java
index 91a9087b..6caeae35 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CouponApi.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/CouponApi.java
@@ -62,7 +62,7 @@ public class CouponApi extends MchApi {
 		map.put("type", "XML");
 		map.put("sign", weixinSignature.sign(map));
 		String param = XmlStream.map2xml(map);
-		WeixinResponse response = createSSLRequestExecutor().post(
+		WeixinResponse response = getWeixinSSLExecutor().post(
 				getRequestUri("coupon_send_uri"), param);
 		return response.getAsObject(new TypeReference<CouponResult>() {
 		});
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/MchApi.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/MchApi.java
index 8f21cc29..86a878fc 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/MchApi.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/MchApi.java
@@ -3,7 +3,6 @@ package com.foxinmy.weixin4j.api;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.ResourceBundle;
@@ -38,6 +37,7 @@ public class MchApi extends BaseApi {
 
 	protected final WeixinPayAccount weixinAccount;
 	protected final WeixinSignature weixinSignature;
+	private volatile WeixinRequestExecutor weixinSSLExecutor;
 
 	public MchApi(WeixinPayAccount weixinAccount) {
 		this.weixinAccount = weixinAccount;
@@ -50,32 +50,6 @@ public class MchApi extends BaseApi {
 		return WEIXIN_BUNDLE;
 	}
 
-	/**
-	 * 创建 SSL支付请求
-	 *
-	 * @param certificate
-	 *            *.p12证书文件
-	 * @return
-	 * @throws WeixinException
-	 */
-	protected WeixinRequestExecutor createSSLRequestExecutor()
-			throws WeixinException {
-		InputStream certificateFile;
-		try {
-			File certificate = new File(weixinAccount.getCertificateFile());
-			if (!certificate.exists() || !certificate.isFile()) {
-				throw new WeixinException("invalid certificate file : "
-						+ certificate.toString());
-			}
-			certificateFile = new FileInputStream(
-					weixinAccount.getCertificateFile());
-		} catch (IOException e) {
-			throw new WeixinException("IO Error on createSSLRequestExecutor", e);
-		}
-		return weixinExecutor.createSSLRequestExecutor(
-				weixinAccount.getCertificateKey(), certificateFile);
-	}
-
 	/**
 	 * 支付接口请求基本数据
 	 *
@@ -112,6 +86,32 @@ public class MchApi extends BaseApi {
 		return this.weixinSignature;
 	}
 
+	/**
+	 * 微信SSL
+	 * 
+	 * @return
+	 */
+	protected WeixinRequestExecutor getWeixinSSLExecutor()
+			throws WeixinException {
+		if (weixinSSLExecutor == null) {
+			try {
+				File certificate = new File(weixinAccount.getCertificateFile());
+				if (!certificate.exists() || !certificate.isFile()) {
+					throw new WeixinException("Invalid certificate file : "
+							+ certificate.toString());
+				}
+				this.weixinSSLExecutor = weixinExecutor
+						.createSSLRequestExecutor(
+								weixinAccount.getCertificateKey(),
+								new FileInputStream(certificate));
+			} catch (IOException e) {
+				throw new WeixinException(
+						"IO Error on createSSLRequestExecutor", e);
+			}
+		}
+		return this.weixinSSLExecutor;
+	}
+
 	/**
 	 * 设置商户信息
 	 *
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
index f8475fc2..a0c59ec0 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
@@ -478,7 +478,7 @@ public class PayApi extends MchApi {
 		map.put("refund_fee_type", refundFeeType.name());
 		map.put("sign", weixinSignature.sign(map));
 		String param = XmlStream.map2xml(map);
-		response = createSSLRequestExecutor().post(
+		response = getWeixinSSLExecutor().post(
 				getRequestUri("refund_apply_uri"), param);
 		return response.getAsObject(new TypeReference<RefundResult>() {
 		});
@@ -518,7 +518,7 @@ public class PayApi extends MchApi {
 		Map<String, String> map = createBaseRequestMap(idQuery);
 		map.put("sign", weixinSignature.sign(map));
 		String param = XmlStream.map2xml(map);
-		WeixinResponse response = createSSLRequestExecutor().post(
+		WeixinResponse response = getWeixinSSLExecutor().post(
 				getRequestUri("order_reverse_uri"), param);
 		return response.getAsObject(new TypeReference<MerchantResult>() {
 		});