Question

我收到了一个错误：此标记后的标识符

Syntax error on token "tag", Identifier expected after this token

这是我的代码：

<%@ page import="photoshare.Picture" %>
<%@ page import="photoshare.PictureDao" %>
<%@ page import="photoshare.HREF_AND_IMGSRC" %>
<%@ page import="photoshare.ToolsDao" %>
<%@ page import="org.apache.commons.fileupload.FileUploadException" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.List" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>Get POP Tags</title></head>
<body>
<h1>With Photos with popular Tags:</h1>

<%
String tagName = request.getParameter("tag");
List<String> popTags = new ArrayList<String>();
ToolsDao toolsDao = new ToolsDao();

popTags = toolsDao.getPopularTags();

for (tag:popTags) {%>
    <a href="popTags.jsp?tag=<%= tagName %>">tagName <a>

<%}


List<HREF_AND_IMGSRC> tagPhotos = toolsDao.getHrefAndImgSrcFromTag(tagName);
for (HREF_AND_IMGSRC photo:tagPhotos) {
    int pictureId = photo.getPictureID();
    int selectedAlbumID = photo.getAlbumID();
    String selectedAlbum_id = Integer.toString(selectedAlbumID);
%>
    <td><a href="picture.jsp?id=<%= pictureId %>&album_id=<%= selectedAlbum_id%>">
    <img src="/photoshare/img?t=1&picture_id=<%= pictureId %>"/></a></td>

<%
}
%>

Click here to <a href="index.jsp">Main Page</a><br>

</body>


</html>

我找到了一些原因，但没有类似的，有人可以帮我弄清楚这个指定错误的问题是什么？

Answer 1

我发现问题是：

for (tag:popTags) {%>
    <a href="popTags.jsp?tag=<%= tagName %>">tagName <a>
<%}

我必须在popTags列表中声明标记的类型，例如：

for (String tag:popTags) {%>
    <a href="popTags.jsp?tag=<%= tagName %>">tagName <a>

<%}

此令牌后预期的标识符

1 个答案: