java接收頁面複選框checkbox的值

public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");//讓頁面傳來的值能在控制檯顯示爲中文不亂碼
        response.setContentType("text/html;charset=utf-8");//輸出到頁面上不亂碼
        PrintWriter out = response.getWriter();
        String [] checkVals=request.getParameterValues("doing");//接收爲數組
        System.out.println("======"+checkVals.length);
        for (String doing : checkVals) {
            System.out.println("我提交的數據是："+doing);
        }
        
    }