diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
index 6b4ea379d..e6c587a13 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
@@ -1,11 +1,15 @@
 package com.github.binarywang.wxpay.config;
 
+import com.github.binarywang.wxpay.exception.WxPayException;
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.http.ssl.SSLContexts;
 
 import javax.net.ssl.SSLContext;
 import java.io.File;
 import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.security.KeyStore;
 
 /**
@@ -143,7 +147,7 @@ public class WxPayConfig {
     this.useSandboxEnv = useSandboxEnv;
   }
 
-  public SSLContext initSSLContext() {
+  public SSLContext initSSLContext() throws WxPayException {
     if (StringUtils.isBlank(mchId)) {
       throw new IllegalArgumentException("请确保商户号mchId已设置");
     }
@@ -152,20 +156,33 @@ public class WxPayConfig {
       throw new IllegalArgumentException("请确保证书文件地址keyPath已配置");
     }
 
-    File file = new File(this.keyPath);
-    if (!file.exists()) {
-      throw new RuntimeException("证书文件【" + file.getPath() + "】不存在！");
+    InputStream inputStream;
+    final String prefix = "classpath:";
+    if (this.keyPath.startsWith(prefix)) {
+      inputStream = WxPayConfig.class.getResourceAsStream(this.keyPath.replace(prefix, ""));
+    } else {
+      try {
+        File file = new File(this.keyPath);
+        if (!file.exists()) {
+          throw new WxPayException("证书文件【" + file.getPath() + "】不存在！");
+        }
+
+        inputStream = new FileInputStream(file);
+      } catch (IOException e) {
+        throw new WxPayException("证书文件有问题，请核实！", e);
+      }
     }
 
     try {
-      FileInputStream inputStream = new FileInputStream(file);
       KeyStore keystore = KeyStore.getInstance("PKCS12");
       char[] partnerId2charArray = mchId.toCharArray();
       keystore.load(inputStream, partnerId2charArray);
       this.sslContext = SSLContexts.custom().loadKeyMaterial(keystore, partnerId2charArray).build();
       return this.sslContext;
     } catch (Exception e) {
-      throw new RuntimeException("证书文件有问题，请核实！", e);
+      throw new WxPayException("证书文件有问题，请核实！", e);
+    } finally {
+      IOUtils.closeQuietly(inputStream);
     }
   }
 }
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/exception/WxPayException.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/exception/WxPayException.java
index eafd8b98d..948c7a499 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/exception/WxPayException.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/exception/WxPayException.java
@@ -45,6 +45,11 @@ public class WxPayException extends Exception {
     this.customErrorMsg = customErrorMsg;
   }
 
+  public WxPayException(String customErrorMsg, Throwable tr) {
+    super(customErrorMsg, tr);
+    this.customErrorMsg = customErrorMsg;
+  }
+
   private WxPayException(Builder builder) {
     super(builder.buildErrorMsg());
     returnCode = builder.returnCode;
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceImpl.java
index c28697a8f..14c34d036 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceImpl.java
@@ -497,7 +497,7 @@ public class WxPayServiceImpl implements WxPayService {
 
       String responseString = this.getResponseString(request.send());
 
-      this.log.debug("\n【请求地址】: {}\n【请求参数】：{}\n【响应数据】：{}", url, requestStr, responseString);
+      this.log.info("\n【请求地址】: {}\n【请求参数】：{}\n【响应数据】：{}", url, requestStr, responseString);
       return responseString;
     } catch (Exception e) {
       this.log.error("\n【请求地址】: {}\n【请求参数】：{}\n【异常信息】：{}", url, requestStr, e.getMessage());
diff --git a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/config/WxPayConfigTest.java b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/config/WxPayConfigTest.java
new file mode 100644
index 000000000..83bcbf2c1
--- /dev/null
+++ b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/config/WxPayConfigTest.java
@@ -0,0 +1,24 @@
+package com.github.binarywang.wxpay.config;
+
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.*;
+
+/**
+ * <pre>
+ *  Created by BinaryWang on 2017/6/18.
+ * </pre>
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ */
+public class WxPayConfigTest {
+  private WxPayConfig payConfig = new WxPayConfig();
+
+  @Test
+  public void testInitSSLContext() throws Exception {
+    payConfig.setMchId("123");
+    payConfig.setKeyPath("classpath:/abc.p12");
+    payConfig.initSSLContext();
+  }
+
+}
diff --git a/weixin-java-pay/src/test/resources/.gitignore b/weixin-java-pay/src/test/resources/.gitignore
new file mode 100644
index 000000000..edd25bc77
--- /dev/null
+++ b/weixin-java-pay/src/test/resources/.gitignore
@@ -0,0 +1 @@
+*.p12