50元券不允许重复下单

fun-common-vo/src/main/java/com/ctrip/fun/common/vo/ResponseMp.java

+package com.ctrip.fun.common.vo;
+
+/**
+ * Response for JSON service.
+ *
+ * @author: l_cheng@ctrip.com
+ * @date: 2014-05-20
+ */
+public class ResponseMp <T> extends Response<T> {
+    private int code;
+
+	public int getCode() {
+		return code;
+	}
+
+	public void setCode(int code) {
+		this.code = code;
+	}
+
+}