@Override public String toString() { StringBuilder info = new StringBuilder(); info.append("Provider:{appkey=").append(getAppkey()) .append(",ip=").append(getIp()) .append(",port=").append(getPort()) .append(",weight=").append(getWeight()) .append(",protocol=").append(getProtocol()) .append(",env=").append(getEnv()) .append(",version=").append(getVersion()) .append("}"); return info.toString(); }