ConnectionPool.getKey() use '-' instead of ':'

src/main/java/org/csource/fastdfs/pool/Connection.java

@@ -97,6 +97,7 @@ public class Connection {
         }
         return isConnected;
     }
+
     public boolean isAvaliable() {
         if (isConnected()) {
             if (sock.getPort() == 0) {

src/main/java/org/csource/fastdfs/pool/ConnectionFactory.java

@@ -23,7 +23,8 @@ public class ConnectionFactory {
             sock.connect(socketAddress, ClientGlobal.g_connect_timeout);
             return new Connection(sock, socketAddress);
         } catch (Exception e) {
-            throw new MyException("connect to server " + socketAddress.getAddress().getHostAddress() + ":" + socketAddress.getPort() + " fail, emsg: " + e.getMessage());
+            throw new MyException("connect to server " + socketAddress.getAddress().getHostAddress()
+                    + ":" + socketAddress.getPort() + " fail, emsg: " + e.getMessage());
         }
     }
 }

src/main/java/org/csource/fastdfs/pool/ConnectionManager.java

@@ -115,7 +115,6 @@ public class ConnectionManager {
         } finally {
             lock.unlock();
         }
-
     }
 
     public void closeConnection(Connection connection) {

src/main/java/org/csource/fastdfs/pool/ConnectionPool.java

@@ -43,7 +43,6 @@ public class ConnectionPool {
         } else {
             connection.closeDirectly();
         }
-
     }
 
     public static void closeConnection(Connection connection) throws IOException {
@@ -64,7 +63,7 @@ public class ConnectionPool {
         if (socketAddress == null) {
             return null;
         }
-        return String.format("%s:%s", socketAddress.getAddress().getHostAddress(), socketAddress.getPort());
+        return String.format("%s-%s", socketAddress.getAddress().getHostAddress(), socketAddress.getPort());
     }
 
     @Override