将获取到的换行字符串去掉换行,然后去掉最后一个"/"

//将获得的换行字符串去掉换行,然后去掉最后一个"/"
		String CityS =request.getParameter("CityS");
		String test = CityS.replaceAll("\r\n", "/");
		String newCityS = test.substring(0, test.length()-1); 
		System.out.println("newCityS" + newCityS);