Question

<html>
    <head>
        <style>
            div { color:red; }
        </style>
        <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
    </head>
    <body>
        <select name="sweets" multiple="multiple">
            <option>Chocolate</option>
            <option selected="selected">Candy</option>    
            <option>Taffy</option>
            <option selected="selected">Caramel</option>
            <option>Fudge</option>
            <option>Cookie</option>    
        </select>
        <div></div>
        <script>
            $("select").change(function() {
                var str = "";
                $("select option:selected").each(function() {
                    str += $(this).text() + " ";
                });
                $("div").text(str);
            }).change();
        </script>    
    </body>
</html>

这个我的代码我想在jsp上的控制台上显示选择更改传递值。我想在Jsp页面中打印onslected item

<%  
    String k=request.getParameter("sweets");
    out.println(k);
%>

像这样我想打印选择项目数据请帮帮我

Answer 1

将包含在内的表单标记的选择框括起来 onchange方法，触发表单提交

<form id="resultform" action="resultPage.jsp">
       <select name="sweets" multiple="multiple">
            <option>Chocolate</option>
            <option selected="selected">Candy</option>    
            <option>Taffy</option>
            <option selected="selected">Caramel</option>
            <option>Fudge</option>
            <option>Cookie</option>    
        </select>
</form>

在jquery方法中写

$("select").change(function() {
    $('#resultform').submit();
}

如何显示值在jsp中选择更改

1 个答案: