列表的弹簧输入路径 [英] spring input path for list

问题描述

我在jsp中使用Spring输入路径

I am using Spring input path in jsp

例如:

<div class="cell label"> 
    <form:label path="order.paymentTransactions.payerEmail">Payer Mail</form:label>
</div> 
<div class="cell"> 
    <form:input path="order.paymentTransactions.payerEmail" name="payerEmail"/>
</div> 

在这里，订单是我的主要对象，在订单内部，paymentTransaction是一个List，我必须在payerEmail中输入要通过dao进行检查的数据.

here, order is my main object and inside order, paymentTransaction is a List, i have to input data to check through dao in payerEmail.

但是它向我显示错误和无效的路径.请建议我一个在jsp中定义输入路径的好方法.谢谢

But it showing error to me and invalid path. Please suggest me a good way to define the input path in jsp. thanks

推荐答案

在Spring中映射bean列表时，很难提供path属性.您可以将<form:input>替换为纯HTML <input>.

While mapping a list of bean in Spring, it is difficult to provide path attribute. You can replace the <form:input> with plain html <input>.

<input name="order.paymentTransactions[0].payerEmail" />

这是在Spring MVC中将List映射为表单对象的完整示例

Here's a complete example to map List as form object in Spring MVC

示例: Spring MVC:多行表单使用列表提交豆类

上面的示例还讨论了为什么在使用列表时难以使用<form:input>的原因.这是因为如果您尝试使用如下所示的内容:

The above example also discuss why it is difficult to use <form:input> while working with Lists. Its because if you try to use something like below:

<form:input path="order.paymentTransactions[0].payerEmail" name="payerEmail"/>

Spring会将其简单地呈现为HTML:

Spring will simple render this as HTML:

<input name="order.paymentTransactions0.payerEmail" />

忽略括号[].

因此不可能使用<form:input>映射列表.

Thus its impossible to use <form:input> for mapping List.

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