feat：新增方法（对目标字符串中对第一个数字进行取模从而获取到分片key）

spring-boot-starter-dsp-util/src/main/java/cn/com/duiba/spring/boot/starter/dsp/util/RedisBalanceKeyUtil.java

 package cn.com.duiba.spring.boot.starter.dsp.util;
 
 import cn.com.duiba.spring.boot.starter.dsp.enums.RedisBalance8KeyEnum;
+import com.google.common.base.Stopwatch;
 import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.lang.time.StopWatch;
 import org.apache.commons.lang3.StringUtils;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
 
 /**
  * @author jiangyangyang
@@ -58,6 +60,33 @@ public class RedisBalanceKeyUtil {
         return null;
     }
 
+    /**
+     * getRedisBalance8key的非hash版
+     * 从目标字符串中获取从左到右第一个数字并且取模得到redisKey
+     *
+     * @param targetStr 目标字符串
+     * @return 返回指定节点对应的rediskey
+     */
+    public static String getRedisKeyByFirstNumMold(String prefix, String targetStr) {
+        int randomNum = 0;
+        for (int i = 0; i < targetStr.length(); i++) {
+            char c = targetStr.charAt(i);
+            if (c >= 48 && c <= 57) {
+                randomNum = c;
+                break;
+            }
+        }
+        RedisBalance8KeyEnum[] values = RedisBalance8KeyEnum.values();
+        int mold = randomNum % (values.length);
+        for (RedisBalance8KeyEnum keyEnum : values) {
+            if (Objects.equals(keyEnum.order, mold)) {
+                String key = keyEnum.hashTag;
+                return StringUtils.join(prefix, "_", keyEnum.order, START, key, END);
+            }
+        }
+        return null;
+    }
+
     /**
      * 通过hash 然后取模获取指定的redis的suffix
      *