我想将我签入数据库的数据行插入数据库。（手臂练习、计数和度数）但是，数据库只插入手臂值。我知道这是因为我的 value="<%=arm%>" . 我应该如何更改以便可以一次插入数据行？

jsp代码

<% 

        String userId       = request.getParameter("UserID");
        String[] arm            = request.getParameterValues("Arm");
        String armNumber    = request.getParameter("ArmNumber");
        String degree       = request.getParameter("Degree");
        String remark       = request.getParameter("Remark");
        String Timestamp    = request.getParameter("Time");
        //String leg            = request.getParameter("Leg");
        //String legNumber  = request.getParameter("LegNumber");

        out.println("<tr>");
        out.println("<td style='width: 10%'>");
        out.println(userId);
        out.println("</td>");
        out.println("<td style='width: 10%'>");
        out.println(arm);
        out.println("</td>");
        out.println("<td style='width: 10%'>");
        out.println(armNumber);
        out.println("</td>");
        out.println("<td style='width: 10%'>");
        out.println(degree);
        out.println("</td>");
        out.println("<td style='width: 10%'>");
        out.println(remark);
        out.println("</td>");
        out.println("<td style='width: 10%'>");
        out.println(Timestamp);
        out.println("</td>");

        //out.println("<td style='width: 10%'>");
        //out.println(leg);
        //out.println("</td>");
        //out.println("<td style='width: 10%'>");
        //out.println(legNumber);
        //out.println("</td>");
        out.println("</tr>");

        int count           =0;
        Connection conn     = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            String connURL = "jdbc:mysql://localhost/HIHI?user=123&password=123";
            conn = DriverManager.getConnection(connURL);

            for(int i=0;i<arm.length;i++){
                    String sql="Insert into assign(UserID, Arm, ArmNumber, Degree, Remark, Time) Values(?,?,?,?,?,?)";
                    PreparedStatement pstmt=conn.prepareStatement(sql);

                    pstmt.setString (1,userId);
                    pstmt.setString (2,arm[i]);
                    pstmt.setString (3,armNumber);
                    pstmt.setString (4,degree);
                    pstmt.setString (5,remark);

                    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                    Date date = new Date();                                     
                    pstmt.setTimestamp(6,new java.sql.Timestamp(new java.util.Date().getTime()));

                    //pstmt.setString   (4,leg);
                    //pstmt.setString   (5,legNumber);

                int rec=pstmt.executeUpdate();

                if (rec==1)
                    count++;

            }

%>

        <form action="assign.jsp" method="post">
            <label><%=count%> assigned!!</label>
            <td style width="50%">
            <p><input type="submit" value="Return" name="ReturnBtn" /></p>
        </form>

<%
        conn.close();
        }
        catch(Exception e){
            e.printStackTrace();
        }
        finally{

        }
%>

html，jsp代码

<td style="width: 5%"><input class="mychkbox" type="checkbox"
                value="<%=arm%>" form="multipleAssign" name="Arm" /></td>