充值功能--接入支付宝

src/main/java/com/ai/da/common/utils/OrderNoUtils.java

@@ -0,0 +1,46 @@
+package com.ai.da.common.utils;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Random;
+
+/**
+ * 订单号工具类
+ *
+ * @author qy
+ * @since 1.0
+ */
+public class OrderNoUtils {
+
+    /**
+     * 获取订单编号
+     * @return
+     */
+    public static String getOrderNo() {
+        return "ORDER_" + getNo();
+    }
+
+    /**
+     * 获取退款单编号
+     * @return
+     */
+    public static String getRefundNo() {
+        return "REFUND_" + getNo();
+    }
+
+    /**
+     * 获取编号
+     * @return
+     */
+    public static String getNo() {
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
+        String newDate = sdf.format(new Date());
+        String result = "";
+        Random random = new Random();
+        for (int i = 0; i < 3; i++) {
+            result += random.nextInt(10);
+        }
+        return newDate + result;
+    }
+
+}