订单工具类

sckw-common/sckw-common-core/src/main/java/com/sckw/core/utils/OrderUtils.java

@@ -0,0 +1,31 @@
+package com.sckw.core.utils;
+
+import org.springframework.stereotype.Component;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicLong;
+
+@Component
+public class OrderUtils {
+    private static final String ORDER_DATE_FORMAT = "yyyyMMddHHmmss";
+    private static final int ORDER_NUMBER_WIDTH = 4;
+    private static final SimpleDateFormat sdf = new SimpleDateFormat(ORDER_DATE_FORMAT);
+    private static final ConcurrentHashMap<String, AtomicLong> orderCounters = new ConcurrentHashMap<>();
+    private static String currentDateStr = "";
+
+    public static String generateOrderNo(String prefix) {
+        String currentDateString = sdf.format(new Date());
+        if (!currentDateString.equals(currentDateStr)) {
+            orderCounters.put(prefix, new AtomicLong(0));
+            currentDateStr = currentDateString;
+        }
+        // 获取或创建与前缀相关联的订单号计数器
+        AtomicLong counter = orderCounters.computeIfAbsent(prefix, key -> new AtomicLong(0));
+        // 自增并获取当前订单号
+        long orderId = counter.incrementAndGet();
+        // 格式化订单号
+        return String.format("%s%s%0" + ORDER_NUMBER_WIDTH + "d", prefix, currentDateString, orderId);
+    }
+}