createOrder方法增加H5支付的支持

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

@@ -0,0 +1,20 @@
+package com.github.binarywang.wxpay.bean.order;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * <pre>
+ * 微信H5支付统一下单后发起支付拼接所需参数实现类.
+ * Created by Binary Wang on 2018-4-21.
+ * </pre>
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ */
+@Data
+@Builder
+public class WxPayMwebOrderResult {
+  @XStreamAlias("mwebUrl")
+  private String mwebUrl;
+}