servlet获取单个数据和一组数据

 request.setCharacterEncoding("utf-8");
        response.setContentType("text/html; charset=utf-8");
        //通过getParameter获取单个表单元素
        String gender=request.getParameter("gender");
        System.out.println(gender);
        //获取一组表单数据
        String[] hobbies = request.getParameterValues("hobby");
        for(String hobby:hobbies){
            System.out.println(hobby);
        }
        //获取表单中标签的name 属性
//        Enumeration<String> parameterNames = request.getParameterNames();
//        while (parameterNames.hasMoreElements()){
//            //获取相应的标签的值
//            System.out.println(request.getParameter(parameterNames.nextElement()));
//            //获取表单中标签的name 属性
//            //System.out.println(parameterNames.nextElement());
//        }