微信支付增加获取微信的请求和响应数据的方法getWxApiData()，方便使用者获取使用该数据

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/WxPayApiData.java

@@ -0,0 +1,87 @@
+package com.github.binarywang.wxpay.bean;
+
+/**
+ * <pre>
+ * 微信支付接口请求数据封装对象
+ * Created by Binary Wang on 2017-8-25.
+ * </pre>
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ */
+public class WxPayApiData {
+  /**
+   * 接口请求地址
+   */
+  private String url;
+
+  /**
+   * 请求数据
+   */
+  private String requestData;
+
+  /**
+   * 响应数据
+   */
+  private String responseData;
+
+  /**
+   * 接口请求异常信息
+   */
+  private String exceptionMsg;
+
+  /**
+   * @param url          接口请求地址
+   * @param requestData  请求数据
+   * @param responseData 响应数据
+   * @param exceptionMsg 接口请求异常信息
+   */
+  public WxPayApiData(String url, String requestData, String responseData, String exceptionMsg) {
+    this.url = url;
+    this.requestData = requestData;
+    this.responseData = responseData;
+    this.exceptionMsg = exceptionMsg;
+  }
+
+  public String getUrl() {
+    return this.url;
+  }
+
+  public void setUrl(String url) {
+    this.url = url;
+  }
+
+  public String getRequestData() {
+    return this.requestData;
+  }
+
+  public void setRequestData(String requestData) {
+    this.requestData = requestData;
+  }
+
+  public String getResponseData() {
+    return this.responseData;
+  }
+
+  public void setResponseData(String responseData) {
+    this.responseData = responseData;
+  }
+
+  public String getExceptionMsg() {
+    return this.exceptionMsg;
+  }
+
+  public void setExceptionMsg(String exceptionMsg) {
+    this.exceptionMsg = exceptionMsg;
+  }
+
+  @Override
+  public String toString() {
+    if (this.exceptionMsg != null) {
+      return String.format("\n【请求地址】：%s\n【请求数据】：%s\n【异常信息】：%s",
+        this, url, this.requestData, this.exceptionMsg);
+    }
+
+    return String.format("\n【请求地址】：%s\n【请求数据】：%s\n【响应数据】：%s",
+      this.url, this.requestData, this.responseData);
+  }
+}