错误:否则，如果没有.但是我把它放在后面 [英] error : else without if . But i have placed it immediately after it

问题描述

当我执行以下代码时:

<script type="text/javascript">
function UploadMessage() {
<%! String message = null; 
    boolean AttemptToUploadFile = false;
%>
    <% 
        message = (String)request.getAttribute("SuccessMessage");
        if(message != null) {
    %>
            alert("File Successfully Uploaded !");
            <% } %>
            <% else if((Boolean)request.getAttribute("UploadAttempt")) { %>
                  alert("Unable to upload file");
                <%}%>

}

我收到以下错误:

media/work documents/UnderTest/NetbeansCurrent/ProjectSnippets/build/generated/src/org/apache/jsp/portfolio_005fone_jsp.java:252: error: 'else' without 'if'
else if((Boolean)request.getAttribute("UploadAttempt")) { 
1 error

错误提示if不带else，但是我在if之后立即放置了else.那为什么会出错呢?

The error says if without else but i have placed else immediately after if. Then why the error?

推荐答案

您必须将它们放在同一脚本块中.只需删除结尾的%>和开头的<%:

You have to put them in the same script block. Just remove the ending %> and the beginning <%:

<% }
     else if (...

这篇关于错误:否则，如果没有.但是我把它放在后面的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！