我收到错误:此 token 后应有标识符
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，但没有类似的原因，任何人都可以帮助我找出这个指定错误的问题是什么？
最佳答案
我发现问题是:
for (tag:popTags) {%>
<a href="popTags.jsp?tag=<%= tagName %>">tagName <a>
<%}
我必须在 popTags 列表中声明标签的类型，例如:
for (String tag:popTags) {%>
<a href="popTags.jsp?tag=<%= tagName %>">tagName <a>
<%}
关于java - 此 token 后应有标识符，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33598554/