如何从标签库调用JavaScript函数?
好吧,我有一个关于javascript的问题,如何从jsp或jspx文件中调用js函数.
Well, I have a question regarding javascript, how to call a js function from jsp or jspx files.
在jspx页面上,我有一个循环,该循环将数据添加到表中,这是代码示例
on my jspx page I have a loop which adds data to a table, here is the code sample
<c:forEach items="${loadList}" var="load">
<tr>
<td>
<nobr><c:out value="${load}"/></nobr>
</td>
</tr>
</c:forEach>
第3行在加载变量var上执行c:out,输出为
Here the line no 3 does a c:out on the load var which prints as
55.959090909090904
118.94545454545454
133.46818181818182
19.727272727272727
等值. 所以我写了一个js函数将这个值四舍五入为
etc values. So I have written a js function to round of this values to as
55.95
118.94
133.46
19.72
JS函数
function roundOfValue(value, limit) {
value = value.toFixed(limit);
return value;
}
我试图在c:out中以
I am trying to call this function in the c:out as
<nobr><c:out value="roundOfValue(${system},2);"/></nobr>
,但这不会调用该函数,并且会在UI上打印该函数.有没有一种方法可以调用此函数,该函数将打印四舍五入的值.
but this does not call the function and prints the same on the UI. Is there a way to call this function which will prints the rounded off values.
我什至尝试了以下方法,但是它不起作用
I even tried the following but it does not work
1. <c:forEach items="${systemList}" var="system" varStatus="row">
2. <tr><td id="load">
3. <nobr><div id="div"></div>
4. <script>
5. document.getElementById(div).innerHTML = roundOfValue(${system},2);
6. </script></nobr>
4. </td></tr>
5. </c:forEach>
请提出一些步骤. 谢谢
Please suggest some steps to do this. Thanks
使用JSTL代替JS:
Use JSTL instead of JS:
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<nobr><fmt:formatNumber value="${load}" pattern="0.00"/></nobr>