diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/com/alibaba/dubbo/registry/support/AbstractRegistryFactory.java b/dubbo-registry/dubbo-registry-api/src/main/java/com/alibaba/dubbo/registry/support/AbstractRegistryFactory.java
index ae2f7fed11a..fe76ebb4807 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/com/alibaba/dubbo/registry/support/AbstractRegistryFactory.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/com/alibaba/dubbo/registry/support/AbstractRegistryFactory.java
@@ -1,103 +1,105 @@
-/*
- * Copyright 1999-2011 Alibaba Group.
- *  
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *  
- *      http://www.apache.org/licenses/LICENSE-2.0
- *  
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.dubbo.registry.support;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.locks.ReentrantLock;
-
-import com.alibaba.dubbo.common.URL;
-import com.alibaba.dubbo.common.logger.Logger;
-import com.alibaba.dubbo.common.logger.LoggerFactory;
-import com.alibaba.dubbo.registry.Registry;
-import com.alibaba.dubbo.registry.RegistryFactory;
-
-/**
- * AbstractRegistryFactory. (SPI, Singleton, ThreadSafe)
- * 
- * @see com.alibaba.dubbo.registry.RegistryFactory
- * @author william.liangf
- */
-public abstract class AbstractRegistryFactory implements RegistryFactory {
-
-    // 日志输出
-    private static final Logger LOGGER = LoggerFactory.getLogger(AbstractRegistryFactory.class);
-
-    // 注册中心获取过程锁
-    private static final ReentrantLock LOCK = new ReentrantLock();
-
-    // 注册中心集合 Map<RegistryAddress, Registry>
-    private static final Map<String, Registry> REGISTRIES = new ConcurrentHashMap<String, Registry>();
-
-    /**
-     * 获取所有注册中心
-     * 
-     * @return 所有注册中心
-     */
-    public static Collection<Registry> getRegistries() {
-        return Collections.unmodifiableCollection(REGISTRIES.values());
-    }
-
-    /**
-     * 关闭所有已创建注册中心
-     */
-    public static void destroyAll() {
-        if (LOGGER.isInfoEnabled()) {
-            LOGGER.info("Close all registries " + getRegistries());
-        }
-        // 锁定注册中心关闭过程
-        LOCK.lock();
-        try {
-            for (Registry registry : getRegistries()) {
-                try {
-                    registry.destroy();
-                } catch (Throwable e) {
-                    LOGGER.error(e.getMessage(), e);
-                }
-            }
-            REGISTRIES.clear();
-        } finally {
-            // 释放锁
-            LOCK.unlock();
-        }
-    }
-
-    public Registry getRegistry(URL url) {
-        // 锁定注册中心获取过程，保证注册中心单一实例
-        LOCK.lock();
-        try {
-            String key = url.getProtocol() + "://" + url.getUsername() + ":" + url.getPassword() + "@" + url.getIp() + ":" + url.getPort();
-            Registry registry = REGISTRIES.get(key);
-            if (registry != null) {
-                return registry;
-            }
-            registry = createRegistry(url);
-            if (registry == null) {
-                throw new IllegalStateException("Can not create registry " + url);
-            }
-            REGISTRIES.put(key, registry);
-            return registry;
-        } finally {
-            // 释放锁
-            LOCK.unlock();
-        }
-    }
-
-    protected abstract Registry createRegistry(URL url);
-
+/*
+ * Copyright 1999-2011 Alibaba Group.
+ *  
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *  
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *  
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.dubbo.registry.support;
+
+import com.alibaba.dubbo.common.Constants;
+import com.alibaba.dubbo.common.URL;
+import com.alibaba.dubbo.common.logger.Logger;
+import com.alibaba.dubbo.common.logger.LoggerFactory;
+import com.alibaba.dubbo.registry.Registry;
+import com.alibaba.dubbo.registry.RegistryFactory;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * AbstractRegistryFactory. (SPI, Singleton, ThreadSafe)
+ * 
+ * @see com.alibaba.dubbo.registry.RegistryFactory
+ * @author william.liangf
+ */
+public abstract class AbstractRegistryFactory implements RegistryFactory {
+
+    // 日志输出
+    private static final Logger LOGGER = LoggerFactory.getLogger(AbstractRegistryFactory.class);
+
+    // 注册中心获取过程锁
+    private static final ReentrantLock LOCK = new ReentrantLock();
+
+    // 注册中心集合 Map<RegistryAddress, Registry>
+    private static final Map<String, Registry> REGISTRIES = new ConcurrentHashMap<String, Registry>();
+
+    /**
+     * 获取所有注册中心
+     * 
+     * @return 所有注册中心
+     */
+    public static Collection<Registry> getRegistries() {
+        return Collections.unmodifiableCollection(REGISTRIES.values());
+    }
+
+    /**
+     * 关闭所有已创建注册中心
+     */
+    public static void destroyAll() {
+        if (LOGGER.isInfoEnabled()) {
+            LOGGER.info("Close all registries " + getRegistries());
+        }
+        // 锁定注册中心关闭过程
+        LOCK.lock();
+        try {
+            for (Registry registry : getRegistries()) {
+                try {
+                    registry.destroy();
+                } catch (Throwable e) {
+                    LOGGER.error(e.getMessage(), e);
+                }
+            }
+            REGISTRIES.clear();
+        } finally {
+            // 释放锁
+            LOCK.unlock();
+        }
+    }
+
+    public Registry getRegistry(URL url) {
+        // 锁定注册中心获取过程，保证注册中心单一实例
+        LOCK.lock();
+        try {
+            String key = url.getProtocol() + "://" + url.getUsername() + ":" + url.getPassword() + "@" + url.getIp() + ":" + url.getPort()
+                    + url.getParameter(Constants.GROUP_KEY, "");
+            Registry registry = REGISTRIES.get(key);
+            if (registry != null) {
+                return registry;
+            }
+            registry = createRegistry(url);
+            if (registry == null) {
+                throw new IllegalStateException("Can not create registry " + url);
+            }
+            REGISTRIES.put(key, registry);
+            return registry;
+        } finally {
+            // 释放锁
+            LOCK.unlock();
+        }
+    }
+
+    protected abstract Registry createRegistry(URL url);
+
 }
\ No newline at end of file