@@ -0,0 +1,348 @@
+package com.lance.websocket.service;%0A%0Apublic class EchoServiceImpl implements EchoService %7B%0A%09private final String echoFormat;%0A%0A%09public EchoServiceImpl(String echoFormat) %7B%0A%09%09this.echoFormat = (echoFormat != null) ? echoFormat : %22%25s%22;%0A%09%7D%0A%0A%09@Override%0A%09public String getMessage(String message) %7B%0A%09%09return String.format(this.echoFormat, message);%0A%09%7D%0A%7D%0A

add echo service impl