Forms JSP JPA表单：如何在路径变量中插入值

我在jsp文件中有以下代码片段：

<hr>
<form:form commandName="newTicketSale" id="reg" action="transactionResult.htm">
    <h3>Buy Movie Tickets:</h3>
    <form:label path="movieName">Movie Name:</form:label>
    <form:input path="movieName" />
    <form:errors class="invalid" path="movieName" />
    <form:label path="ticketPrice">Ticket Price:</form:label>
    <form:input path="ticketPrice" />
    <form:errors class="invalid" path="ticketPrice" />
     <input type="submit"> <br><br>
</form:form> 

我可以在执行newTicket.getUserId（）时检索值${name}

我不知道怎么做。请帮忙！

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提前谢谢

您应该在

form:form

中使用

modeldattribute

标记，如下所示

form:form method="post" action="example.html" modelAttribute="newTicketSale"

以便使用

newTicket.getters

form:form method="post" action="example.html" modelAttribute="newTicketSale"