diff --git a/build.gradle b/build.gradle
index 8edfc1c..0445199 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,9 +16,6 @@
 repositories {
     mavenCentral()
     maven {
-        url  "http://dl.bintray.com/snimavat/maven"
-    }
-    maven {
         url "http://ykt-nx.supwisdom.com/repository/ecard-repo/"
         credentials {
             username 'ecard'
@@ -57,7 +54,6 @@
     compile(
             'net.sf.json-lib:json-lib:2.4:jdk15'
     )
-    compile "me.nimavat:shortid:1.0.1.RC1"
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.boot:spring-boot-starter-data-redis'
     implementation 'org.springframework.boot:spring-boot-starter-web'
diff --git a/src/main/java/com/supwisdom/dlpay/framework/util/ShortURLUtil.java b/src/main/java/com/supwisdom/dlpay/framework/util/ShortURLUtil.java
index 46c7586..b9b3a6e 100644
--- a/src/main/java/com/supwisdom/dlpay/framework/util/ShortURLUtil.java
+++ b/src/main/java/com/supwisdom/dlpay/framework/util/ShortURLUtil.java
@@ -2,11 +2,11 @@
 
 import com.supwisdom.dlpay.framework.service.BusinessparaService;
 import net.sf.json.JSONObject;
+import org.apache.commons.lang3.RandomStringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
-import me.nimavat.shortid.ShortId;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
@@ -27,7 +27,7 @@
     }
 
     public String doGetShortId() {
-        return ShortId.generate();
+        return RandomStringUtils.random(6, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
     }
 
     public String doGetBaiduShortUrl(String longUrl) {
diff --git a/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt b/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
index 30ec5c1..c50a717 100644
--- a/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
+++ b/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
@@ -193,7 +193,11 @@
             val savedTrans = collectdtlService.createNewTransdtl(trans)
             //2.将流水号及认证地址返回给终端
             //生成短id 将id与认证url的映射存入redis
-            val shortId = shortURLUtil.doGetShortId()
+            var shortId: String
+            do{
+                shortId = shortURLUtil.doGetShortId()
+                val hasKey = redisTemplate.hasKey(Constants.REDISKEY_SHORTURL + shortId)
+            }while (hasKey)
             redisTemplate.opsForValue().set(Constants.REDISKEY_SHORTURL + shortId, savedTrans.cobillno, 200, TimeUnit.SECONDS)
             val url =
                     businessparaService.findByParakey(WaterBudinessConstants.waterAuthUrl).paraval + shortId