笔记如下
-
用户的更新操作:查找用户信息,在显示,修改后,再存储,最后显示更新的内容
4.png
- 更新入口
<td>
<a href="javascript:void(0)" onclick="confrimDel('${customer.id}')">删除</a>
<a href="${pageContext.request.contextPath }/getonebyid?id=${customer.id}" >更新</a>
</td>
- 将查找出来的数据存到customer对象中,并转发数据到jsp中回显
<body>
<h3>客户信息修改页面</h3>
<form action="${pageContext.request.contextPath}/update" method="post">
<table>
<tr>
<td>客户编码:</td>
<td>
<input type="hidden" name="id" value="${customer.id}">
${customer.id}
</td>
</tr>
<tr>
<td>姓名</td>
<td><input type="text" name="name" value="${customer.name}">
</td>
</tr>
<tr>
<td>姓别</td>
<td>
<!--- checked="checked" --> <!-- radio的回显 --> <input type="radio"
name="gender" value="male"
<c:if test="${customer.gender == 'male'}">
checked="checked"
</c:if>>男
<input type="radio" name="gender" value="female"
<c:if test="${customer.gender == 'female'}">
checked="checked"
</c:if>>女
</td>
</tr>
<tr>
<td>生日</td>
<td><input type="text" name="birthday" id="birthday"
value="${customer.birthday}"></td>
</tr>
<tr>
<td>邮箱</td>
<td><input type="text" name="email" value="${customer.email}">
</td>
</tr>
<tr>
<td>手机</td>
<td><input type="text" name="cellphone"
value="${customer.cellphone}"></td>
</tr>
<tr>
<td>爱好</td>
<td>
<!-- checkbox --> <!-- checked="checked" --> <input type="checkbox"
name="preference" value="弹棉花"
<c:if test="${fn:contains(customer.preference,'弹棉花')}">
checked="checked"
</c:if>>弹棉花
<input type="checkbox" name="preference" value="玩毛线"
<c:if test="${fn:contains(customer.preference,'玩毛线')}">
checked="checked"
</c:if>>玩毛线
<input type="checkbox" name="preference" value="麻辣烫"
<c:if test="${fn:contains(customer.preference,'麻辣烫')}">
checked="checked"
</c:if>>麻辣烫
<input type="checkbox" name="preference" value="敲代码"
<c:if test="${fn:contains(customer.preference,'敲代码')}">
checked="checked"
</c:if>>敲代码
<input type="checkbox" name="preference" value="睡觉"
<c:if test="${fn:contains(customer.preference,'睡觉')}">
checked="checked"
</c:if>>睡觉
</td>
</tr>
<tr>
<td>类型</td>
<td>
<!-- selected="selected" -->
<select name="type">
<option value="普通客户"
<c:if test="${customer.type == '普通客户'}">
selected="selected"
</c:if>
>普通客户</option>
<option value="vip客户"
<c:if test="${customer.type == 'vip客户'}">
selected="selected"
</c:if>
>VIP</option>
<option value="超白金客户"
<c:if test="${customer.type == '超白金客户'}">
selected="selected"
</c:if>
>超白金</option>
</select>
</td>
</tr>
<tr>
<td>描述</td>
<td>
<textarea rows="5" cols="75" name="description" >${customer.description}</textarea>
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="更新">
</td>
</tr>
</table>
</form>
</body>
之后得到更新后的数据后在存到数据库中,并且回到查询页面.
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