1.代客下单，支付，挂起，下单接口开发

eladmin-system/src/main/java/cn/ysk/cashier/utils/SnowFlakeUtil.java

@@ -0,0 +1,48 @@
+package cn.ysk.cashier.utils;
+
+import cn.hutool.core.lang.Snowflake;
+import cn.hutool.core.util.IdUtil;
+import lombok.extern.slf4j.Slf4j;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Random;
+
+/**
+ * @author Exrickx
+ */
+@Slf4j
+public class SnowFlakeUtil {
+
+    /**
+     * 派号器workid：0~31
+     * 机房datacenterid：0~31
+     */
+    private static Snowflake snowflake = IdUtil.createSnowflake(1, 1);
+
+    public static Long nextId() {
+        return snowflake.nextId();
+    }
+
+
+
+
+
+    public static String generateOrderNo(){
+        String dateFormat="yyyyMMddHHmmssSSS";
+        SimpleDateFormat sm=new SimpleDateFormat(dateFormat);
+
+        String currentDate=sm.format(new Date());
+
+        Random rm=new Random();
+        int suffix=rm.nextInt(9999999);
+
+        return currentDate.concat(String.format("%07d",suffix));
+    }
+
+    public static void main(String[] args){
+        for(int i=0;i<10;i++){
+            System.out.println(SnowFlakeUtil.generateOrderNo());
+        }
+    }
+}