Question

我有这个index.jsp文件，其中显示了所有项目列表，并且可以通过单击项目名称来更新＆gt;

    <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
        pageEncoding="ISO-8859-1"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
    <!DOCTYPE html>
    <html>
    <head>
    <%@ include file="/pages/commons/scripts.jsp"%>
    <title>Pabebe Inventory Store</title>
    </head>
    <body>
        <c:if test="${not empty success}">
            <script type="text/javascript">
                alert("Item successfully added.");
            </script>
            <c:remove var="success" scope="request" />
        </c:if>
        <c:choose>
            <c:when test="${not empty user}">
                Hi <c:out value="${user.firstName}" />!<br>
                <a href="LogOut">Logout</a>
                <a href="AddItem">Add new item</a>
            </c:when>
            <c:otherwise>
                Hello please click <a href="Login">Login</a>
            </c:otherwise>
        </c:choose>
        <table>
            <tr>
                <td>
                    <form id="searchItem" method="POST" action="ItemList">
                        <input type="text" id="searchkeyword" name="searchkeyword"
                            value="<c:out value="${searchkeyword}"/>" /><input type="submit"
                            value="Search" />
                    </form>
                </td>
                <td>
                    <form id="resetItem" method="GET" action="ItemList">
                        <input type="submit" value="Reset" />
                    </form>
                </td>
            </tr>
        </table>
        <table border=1>
            <thead>
                <tr>
                    <th>Item Name</th>
                    <th>Item Description</th>
                    <th>Item Price</th>
                    <th>Item Quantity</th>
                    <c:if test="${not empty user}">
                        <th>Action</th>
                    </c:if>
                </tr>
            </thead>
            <tbody>
                <c:forEach items="${items}" var="items">
                    <tr>
                        <td><c:choose>
                                <c:when test="${not empty user}">
                                    <a href="UpdateItem?id=<c:out value="${items.id}"/>"><c:out
                                            value="${items.itemName}" /></a>
                                </c:when>
                                <c:otherwise>
                                    <c:out value="${items.itemName}" />
                                </c:otherwise>
                            </c:choose></td>
                        <td><c:out value="${items.itemDescription}" /></td>
                        <td><c:out value="${items.itemPrice}" /></td>
                        <td><c:out value="${items.itemQuantity}" /></td>
                        <c:if test="${not empty user}">
                            <td>
                                <form id="deleteItem<c:out value="${items.id}"/>" method="POST"
                                    action="DeleteItem">
                                    <input type="hidden" id="id" name="id"
                                        value="<c:out value="${items.id}"/>" /> <input type="submit"
                                        value="Delete"
                                        onclick="return confirm('Are you sure to delete this item?')" />
                                </form>
                            </td>
                        </c:if>
                    </tr>
                </c:forEach>
            </tbody>
        </table>

    </body>
    </html>

当点击项目名称时，我有另一个jsp文件，它是＆gt; itemUpdate.jsp：

    <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
        pageEncoding="ISO-8859-1"%>
    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
    <!DOCTYPE html>
    <html>
    <head>
    <%@ include file="/pages/commons/scripts.jsp"%>
    <title>Pabebe Inventory Store</title>
    </head>
    <body>
        <form action="UpdateItem" method="POST">
            <table align="center" width="400px">

                <tr>
                    <td>Item name</td>
                    <td><input type="text" id="itemname" name="itemname"
                        value="<c:out value="${itemname}"/>" /></td>
                    <td><c:out value="${usernameerrmsg}" /></td>
                </tr>
                <tr>
                    <td>Item description</td>
                    <td><input type="text" id="itemdescription"
                        name="itemdescription" value="<c:out value="${itemdescription}"/>" /></td>
                    <td><c:out value="${usernameerrmsg}" /></td>
                </tr>
                <tr>
                    <td>Item price</td>
                    <td><input type="text" id="itemprice" name="itemprice"
                        value="<c:out value="${itemprice}"/>" /></td>
                    <td><c:out value="${usernameerrmsg}" /></td>
                </tr>

                <tr>
                <tr>
                    <td>Item quantity</td>
                    <td><input type="text" id="itemquantity" name="itemquantity"
                        value="<c:out value="${itemquantity}"/>" /></td>
                    <td><c:out value="${usernameerrmsg}" /></td>
                </tr>
                <tr>
                    <td colspan="3" align="center"><input type="submit"
                        value="Submit" /></td>
                </tr>
            </table>

        </form>
        <a href="ItemList">Go to item list</a>




    </body>
    </html>

我的问题是，如何在＆gt; itemUpdate.jsp中的输入文本中显示所点击项目的当前值？当我更改文本并单击＆gt;提交按钮时，数据库中的值仍将更新。顺便说一句，我的更新是>正常工作。我只想在＆gt;我要更新特定项目时在文本框中显示当前值。

This is what I wanted to happen.

JSP中输入文本中的值来自结果查询

0 个答案: