diff --git a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/user/user/UserHandler.java b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/user/user/UserHandler.java
index f3332c0..e234923 100644
--- a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/user/user/UserHandler.java
+++ b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/user/user/UserHandler.java
@@ -156,7 +156,7 @@ public class UserHandler {
         protected void afterQuery(List<SwMap> listData) {
             if (pageDataSet._isCurDataSet(DS_UserParty)) {
                 listData.forEach(sw -> {
-                    sw.put("sup_roles", UserRoleCache.getInstance().getRoleByParty(sw.readLong("sup_id")));
+                    sw.put("sup_roles", StringUtil.join(UserRoleCache.getInstance().getRoleByParty(sw.readLong("sup_id")),","));
                     sw.put("sup_roles_text", RoleCache.getInstance().getNamesByIds(UserRoleCache.getInstance().getRoleByParty(sw.readLong("sup_id"))));
                 });
                 return;
diff --git a/smtweb-framework/core/src/main/java/cc/smtweb/framework/core/util/StringUtil.java b/smtweb-framework/core/src/main/java/cc/smtweb/framework/core/util/StringUtil.java
index 3cb9d3a..16a108f 100644
--- a/smtweb-framework/core/src/main/java/cc/smtweb/framework/core/util/StringUtil.java
+++ b/smtweb-framework/core/src/main/java/cc/smtweb/framework/core/util/StringUtil.java
@@ -240,14 +240,14 @@ public class StringUtil {
      * @param delim the delimiter character(s) to use. (null value will join with no delimiter)
      * @return a String of all values in the list seperated by the delimiter
      */
-    public static String join(Collection<String> list, String delim) {
+    public static String join(Collection<? extends Object> list, String delim) {
         if (list == null || list.size() < 1)
             return null;
         StringBuffer buf = new StringBuffer();
         Iterator i = list.iterator();
 
         while (i.hasNext()) {
-            buf.append((String) i.next());
+            buf.append(i.next().toString());
             if (i.hasNext())
                 buf.append(delim);
         }