输入文本值未传递到另一页面

Question

我正在尝试将文本值传递给另一个jsp页面，并且所有元素都是动态创建的。即使名称已正确分配，我也无法在其他页面中接收这些值。请帮我找出错误。提前致谢！！！ 这是第一页。

firstpage.jsp

            <%!
                int wellname_counter = 0 ;
            %>

            <sql:query dataSource="${snapshot}" var="result">
                SELECT * FROM work_history WHERE from_date >= ? ;
                <sql:param value="${from_date}"/>
            </sql:query>

                <center>
                <table class="table-fill">
                    <thead>
                        <tr>
                        <th class="text-center">Select The Well</th>
                        <th class="text-center">Well No</th>
                        <th class="text-center">From Date</th>
                        <th class="text-center">To Date</th>
                        <th class="text-center">Job Done</th>
                        <th class="text-center">Rig</th>
                        </tr>
                    </thead>
                    <form action="Generate-Excel/work_history.jsp" method="POST">
                    <tbody class="table-hover">

                        <% wellname_counter = 0 ;%>

                        <c:forEach var="row" items="${result.rows}">
                        <tr>
                            <td class="text-center">
                                <input type="checkbox" name="name<%= wellname_counter %>" id="select_element" value="<%= wellname_counter %>">
                            </td>

                            <!-- For getting the name from well_sno attribute --> 

                            <sql:query dataSource="${snapshot}" var="wellname">
                                SELECT name FROM well_name WHERE sno = ? ;
                            <sql:param value="${row.well_sno}"/>
                            </sql:query>

                            <td class="text-center">

                            <c:forEach var="only_wellname" items="${wellname.rows}">
                                <input type="text" value="<c:out value="${only_wellname.name}"/>" disabled="true" class="remove_border" name="well_name<%= wellname_counter%>">
                            </c:forEach>
                            </td>

                            <td class="text-center"><input type="text" value="<c:out value="${row.from_date}"/>" disabled="true" class="remove_border" name="fromdate<%=wellname_counter%>"></td>
                            <td class="text-center"><input type="text" value="<c:out value="${row.to_date}"/>" disabled="true" class="remove_border" name="todate<%=wellname_counter%>"></td>
                            <td class="text-center"><input type="text" value="<c:out value="${row.jobdone}"/>" disabled="true" class="remove_border" name="jobdone<%=wellname_counter%>"></td>
                            <td class="text-center"><input type="text" value="<c:out value="${row.rig}"/>" disabled="true" class="remove_border" name="rig<%=wellname_counter%>"></td>
                        </tr>
                        <%wellname_counter++ ; %>
                        </c:forEach>
                    </tbody>


                </table>

                     <input type="hidden" value="<%= wellname_counter %>" name="work_instance">
                    <div>
                        <input type="submit" value="UPDATE" class="styling"/>
                        <input type="submit" value="GENERATE EXCEL SHEET" class="green"/>
                       </div>
                      </form>
                  </center>

Secondpage.jsp

        out.print( request.getParameter("name0") ) ;
        out.print( request.getParameter("fromdate0") ) ;
        out.print( request.getParameter("todate0") ) ;
        out.print( request.getParameter("jobdone0") ) ;
        out.print( request.getParameter("rig0") ) ;

Answer 1

其实我喜欢解决方案我不应该“禁用='真''而不是”只读“

<input type="text" value="<c:out value="${row.from_date}"/>" disabled="true" class="remove_border" name="fromdate<%=wellname_counter%>">

这是放置灵魂的正确方法

<input type="text" value='<c:out value="${row.from_date}"/>' class="remove_border" name="fromdate<%=wellname_counter%>" readonly>