Question

我需要将参数从jsp发送到servlet，但只更新一行而不是更新servlet生成的所有行。你能帮帮我吗？我的servlet代码是：

public class ExcelTest extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);

        response.setContentType("text/html");

        PrintWriter out = response.getWriter();

        //out.println(request.getParameter("customerName"));
        for (int i = 0; i < 250; i++){
            out.println("<input + id = " + i + " type=\"text\" value = " + request.getParameter("customerName") + ">");
            request.setAttribute("vvv", i);
            out.println("<a href=\"http://localhost:8079/TesteExcel/createparameters.jsp\">Visit</a>");
            out.println("<div>");            
            for (int j = 0; j < 10; j++){                
                out.print("<div id = " + i + "" + j + " style=\"width:100px; float:left\">" + i + " - " + j +"</div>");
            }
            out.println("</br>");
            out.println("</div>");
        }
    }
}

并且对于jsp是：

<form name="excel" action="ExcelTest" method="post">
            <input type="text" name="customerName">
            <input type="text" name="customerCUI">
            <input type=submit value="click me">

</form>

谢谢你，椰油

Answer 1

试试这个

         String custName = request.getParameter("customerName");
            for (int i = 0; i < 250; i++){
                if(i!=0)
                    custName="";
                out.println("<input + id = " + i + " type=\"text\" value = " + custName + ">");
                request.setAttribute("vvv", i);
                out.println("<a href=\"http://localhost:8079/TesteExcel/createparameters.jsp\">Visit</a>");
                out.println("<div>");            
                for (int j = 0; j < 10; j++){                
                    out.print("<div id = " + i + "" + j + " style=\"width:100px; float:left\">" + i + " - " + j +"</div>");
                }
                out.println("</br>");
                out.println("</div>");
            }

仅对于第一次迭代，它将需要customer name。

这里我假设您在每次迭代中都需要input标记。

在jsp和servlet之间发送参数

1 个答案: