Question

I want to call a java function named setrowNumber(1), that sets the row number to a static int variable. And I want this function to be called when the link is clicked but that does'nt seem to happen.

The problem is in that part only because when i try to set the value manually it works fine.

<a   href="single.jsp" onclick= "<%conc.setrowNumber(1);%>" > <i class="glyphicon glyphicon-menu-right icon"  ></i></a>

I am making java web application on struts framework, using net beans and wamp server.

If I use javascript function and use it with onclick event then how can I pass value to java function.e.g

<a   href="single.jsp" onclick= "myFunc(1)" > <i class="glyphicon glyphicon-menu-right icon"  ></i></a>


<script type="text/javascript">
function myFunc (int a) {
<% conc.setrowNumber(a); %> //how to write java function and pass value here because a is not known var here.         
}
</script>

Answer 1

试试这个。 <s:url id="yourId" action="yourActionName"></s:url> <s:a href="%{#yourId}"><img src="<s:url value="/images/submit.png" /> </s:a> 在jsp上建立一个链接，通过该URL可以调用Action。

Answer 2

尝试以下代码

        <a   href="#" onclick= "<% conc.setrowNumber(1); %> return false;" > <i class="glyphicon glyphicon-menu-right icon"  ></i></a>

Answer 3

通常使用JavaScript中的AJAX调用，在异步模式下完成：您发送到服务器，并可能注册一个JavaScript函数来回调。网络搜索会给出示例。在你的情况下。一个链接，您可以使用参数为href位置分配一个URL。

this.href.url = "single.jsp?a=" + a;

Answer 4

在你的jsp中包含已经具有此功能的类

<%@page import="package.subPackage.TheClassName"%>

在scriptlet标记中，您可以调用该方法。

<% TheClassName theClassInstance = new TheClassName(); theClassInstance.doSomething(); %>

如果是静态方法，则不需要创建实例。

如何使用<a> tag from jsp page

4 个答案: