用 JSP 自己编写 CKEditor 图片上传服务器端代码

今天学会了如何自己编写 JSP 用来处理 CKEditor 的图片上传。
<%@ page import="org.apache.commons.fileupload.FileItem" %>
<%@ page import="java.util.List" %>
<%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %>
<%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload" %>
<%@ page import="org.apache.commons.io.FilenameUtils" %>
<%@ page import="java.io.File" %>
<%@ page import="org.apache.commons.lang.StringUtils" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
String callback = request.getParameter("CKEditorFuncNum");

try {
if (ServletFileUpload.isMultipartContent(request)) {
ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());
List<FileItem> fileItemsList = servletFileUpload.parseRequest(request);

String filename = String.valueOf(System.currentTimeMillis());
for (FileItem item : fileItemsList) {
if (!item.isFormField()) {
String _filename = item.getName();
filename += "." + FilenameUtils.getExtension(_filename);

String clientPath = "images/" + filename; // 这里应根据需要修改。

File file = new File(application.getRealPath(clientPath));
if (!file.getParentFile().exists()) {
file.getParentFile().mkdirs();
}
item.write(file);
}
}
%>
<mce:script type="text/javascript"><!--
window.parent.CKEDITOR.tools.callFunction(<%=callback%>, '<%=clientPath%>', '');
// --></mce:script>
<%
}
} catch (Excepti