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src/main/java/com/lwby/marketing/controller/ServiceHelper.java

 package com.lwby.marketing.controller;
 
+import cn.hutool.crypto.SecureUtil;
 import org.apache.commons.lang3.StringUtils;
 
 import java.io.UnsupportedEncodingException;
@@ -25,4 +26,18 @@ public class ServiceHelper {
             return null;
         }
     }
+
+    public String assembleKey(String deviceId, ClickbackService.DeviceType type) {
+        switch (type) {
+            case IMEI:
+            case OAID:
+            case IDFA:
+                return deviceId;
+            case IP_UA:
+            case IP_MODEL:
+            case IP:
+                return SecureUtil.md5(deviceId);
+        }
+        return null;
+    }
 }