ckeditor 实现 servlet 图片上传 配置

<servlet> ???????<servlet-name>SimpleUploader</servlet-name> ???????<servlet-class>ckeditor.CKEditorUploadServlet</servlet-class> ???????<init-param> ???????????<param-name>baseDir</param-name> ???????????<param-value>/UserFiles/</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>debug</param-name> ???????????<param-value>false</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>enabled</param-name> ???????????<param-value>true</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>AllowedExtensionsFile</param-name> ???????????<param-value></param-value> ???????</init-param> ???????<init-param> ???????????<param-name>DeniedExtensionsFile</param-name> ???????????<param-value> ???????????????html|htm|php|php2|php3|php4|php5|phtml|pwml|inc|asp|aspx|ascx|jsp|cfm|cfc|pl|bat|exe|com|dll|vbs|js|reg|cgi|htaccess|asis|ftl ???????????</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>AllowedExtensionsImage</param-name> ???????????<param-value>jpg|gif|jpeg|png|bmp</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>DeniedExtensionsImage</param-name> ???????????<param-value></param-value> ???????</init-param> ???????<init-param> ???????????<param-name>AllowedExtensionsFlash</param-name> ???????????<param-value>swf|fla</param-value> ???????</init-param> ???????<init-param> ???????????<param-name>DeniedExtensionsFlash</param-name> ???????????<param-value></param-value> ???????</init-param> ???????<load-on-startup>0</load-on-startup> ???</servlet> ????<servlet-mapping> ???????<servlet-name>SimpleUploader</servlet-name> ???????<url-pattern>/ckeditor/uploader</url-pattern> ???</servlet-mapping>

package ckeditor; import java.io.File;import java.io.IOException;import java.io.PrintWriter;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.HashMap;import java.util.Hashtable;import java.util.Iterator;import java.util.List;import java.util.Map; import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem;import org.apache.commons.fileupload.FileItemFactory;import org.apache.commons.fileupload.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload; public class CKEditorUploadServlet extends HttpServlet { ????private static String baseDir;// CKEditor的根目录 ???private static boolean debug = false;// 是否debug模式 ???private static boolean enabled = false;// 是否开启CKEditor上传 ???private static Hashtable allowedExtensions;// 允许的上传文件扩展名 ???private static Hashtable deniedExtensions;// 阻止的上传文件扩展名 ???private static SimpleDateFormat dirFormatter;// 目录命名格式:yyyyMM ???private static SimpleDateFormat fileFormatter;// 文件命名格式:yyyyMMddHHmmssSSS ????/** ????* Servlet初始化方法 ????*/ ???@SuppressWarnings("unchecked") ???public void init() throws ServletException { ???????// 从web.xml中读取debug模式 ???????debug = (new Boolean(getInitParameter("debug"))).booleanValue(); ???????if (debug) ???????????System.out ???????????????????.println("\r\n---- SimpleUploaderServlet initialization started ----"); ???????// 格式化目录和文件命名方式 ???????dirFormatter = new SimpleDateFormat("yyyyMM"); ???????fileFormatter = new SimpleDateFormat("yyyyMMddHHmmssSSS"); ???????// 从web.xml中获取根目录名称 ???????baseDir = getInitParameter("baseDir"); ???????// 从web.xml中获取是否可以进行文件上传 ???????enabled = (new Boolean(getInitParameter("enabled"))).booleanValue(); ???????if (baseDir == null) ???????????baseDir = "/UserFiles/"; ???????String realBaseDir = getServletContext().getRealPath(baseDir); ???????File baseFile = new File(realBaseDir); ???????if (!baseFile.exists()) { ???????????baseFile.mkdirs(); ???????} ???????// 实例化允许的扩展名和阻止的扩展名 ???????allowedExtensions = new Hashtable(3); ???????deniedExtensions = new Hashtable(3); ???????// 从web.xml中读取配置信息 ???????allowedExtensions.put("File", ???????????????stringToArrayList(getInitParameter("AllowedExtensionsFile"))); ???????deniedExtensions.put("File", ???????????????stringToArrayList(getInitParameter("DeniedExtensionsFile"))); ????????allowedExtensions.put("Image", ???????????????stringToArrayList(getInitParameter("AllowedExtensionsImage"))); ???????deniedExtensions.put("Image", ???????????????stringToArrayList(getInitParameter("DeniedExtensionsImage"))); ????????allowedExtensions.put("Flash", ???????????????stringToArrayList(getInitParameter("AllowedExtensionsFlash"))); ???????deniedExtensions.put("Flash", ???????????????stringToArrayList(getInitParameter("DeniedExtensionsFlash"))); ???????if (debug) ???????????System.out ???????????????????.println("---- SimpleUploaderServlet initialization completed ----\r\n"); ???} ????public void doGet(HttpServletRequest request, HttpServletResponse response) ???????????throws ServletException, IOException { ???????doPost(request, response); ???} ????public void doPost(HttpServletRequest request, HttpServletResponse response) ???????????throws ServletException, IOException { ???????if (debug) ???????????System.out.println("--- BEGIN DOPOST ---"); ???????response.setContentType("text/html; charset=UTF-8"); ???????response.setHeader("Cache-Control", "no-cache"); ???????PrintWriter out = response.getWriter(); ???????// 从请求参数中获取上传文件的类型：File/Image/Flash ???????String typeStr = request.getParameter("Type"); ???????if (typeStr == null) { ???????????typeStr = "File"; ???????} ???????if (debug) ???????????System.out.println(typeStr); ???????// 实例化dNow对象，获取当前时间 ???????Date dNow = new Date(); ???????// 设定上传文件路径 ???????String currentPath = baseDir + typeStr + "/" ???????????????+ dirFormatter.format(dNow); ???????// 获得web应用的上传路径 ???????String currentDirPath = getServletContext().getRealPath(currentPath); ???????// 判断文件夹是否存在，不存在则创建 ???????File dirTest = new File(currentDirPath); ???????if (!dirTest.exists()) { ???????????dirTest.mkdirs(); ???????} ???????// 将路径前加上web应用名 ???????currentPath = request.getContextPath() + currentPath; ???????if (debug) ???????????System.out.println(currentDirPath); ???????// 文件名和文件真实路径 ???????String newName = ""; ???????String fileUrl = ""; ???????if (enabled) { ???????????// 使用Apache Common组件中的fileupload进行文件上传 ???????????FileItemFactory factory = new DiskFileItemFactory(); ???????????ServletFileUpload upload = new ServletFileUpload(factory); ???????????try { ???????????????List items = upload.parseRequest(request); ???????????????Map fields = new HashMap(); ???????????????Iterator iter = items.iterator(); ???????????????while (iter.hasNext()) { ???????????????????FileItem item = (FileItem) iter.next(); ???????????????????if (item.isFormField()) ???????????????????????fields.put(item.getFieldName(), item.getString()); ???????????????????else ???????????????????????fields.put(item.getFieldName(), item); ???????????????} ???????????????// CEKditor中file域的name值是upload ???????????????FileItem uplFile = (FileItem) fields.get("upload"); ???????????????// 获取文件名并做处理 ???????????????String fileNameLong = uplFile.getName(); ???????????????fileNameLong = fileNameLong.replace(‘\\‘, ‘/‘); ???????????????String[] pathParts = fileNameLong.split("/"); ???????????????String fileName = pathParts[pathParts.length - 1]; ???????????????// 获取文件扩展名 ???????????????String ext = getExtension(fileName); ???????????????// 设置上传文件名 ???????????????fileName = fileFormatter.format(dNow) + "." + ext; ???????????????// 获取文件名(无扩展名) ???????????????String nameWithoutExt = getNameWithoutExtension(fileName); ????????????????File pathToSave = new File(currentDirPath, fileName); ???????????????fileUrl = currentPath + "/" + fileName; ???????????????if (extIsAllowed(typeStr, ext)) { ???????????????????int counter = 1; ???????????????????while (pathToSave.exists()) { ???????????????????????newName = nameWithoutExt + "_" + counter + "." + ext; ???????????????????????fileUrl = currentPath + "/" + newName; ???????????????????????pathToSave = new File(currentDirPath, newName); ???????????????????????counter++; ???????????????????} ???????????????????uplFile.write(pathToSave); ???????????????} else { ???????????????????if (debug) ???????????????????????System.out.println("无效的文件类型： " + ext); ???????????????} ???????????} catch (Exception ex) { ???????????????if (debug) ???????????????????ex.printStackTrace(); ???????????} ???????} else { ???????????if (debug) ???????????????System.out.println("未开启CKEditor上传功能"); ???????} ???????// CKEditorFuncNum是回调时显示的位置，这个参数必须有 ???????String callback = request.getParameter("CKEditorFuncNum"); ???????out.println("<script type=\"text/javascript\">"); ???????out.println("window.parent.CKEDITOR.tools.callFunction(" + callback ???????????????+ ",‘" + fileUrl + "‘,‘‘" + ")"); ???????out.println("</script>"); ???????out.flush(); ???????out.close(); ???????if (debug) ???????????System.out.println("--- END DOPOST ---"); ???} ????/** ????* 获取文件名的方法 ????*/ ???private static String getNameWithoutExtension(String fileName) { ???????return fileName.substring(0, fileName.lastIndexOf(".")); ???} ????/** ????* 获取扩展名的方法 ????*/ ???private String getExtension(String fileName) { ???????return fileName.substring(fileName.lastIndexOf(".") + 1); ???} ????/** ????* 字符串像ArrayList转化的方法 ????*/ ????private ArrayList stringToArrayList(String str) { ???????if (debug) ???????????System.out.println(str); ???????String[] strArr = str.split("\\|"); ???????ArrayList tmp = new ArrayList(); ???????if (str.length() > 0) { ???????????for (int i = 0; i < strArr.length; ++i) { ???????????????if (debug) ???????????????????System.out.println(i + " - " + strArr[i]); ???????????????tmp.add(strArr[i].toLowerCase()); ???????????} ???????} ???????return tmp; ???} ????/** ????* 判断扩展名是否允许的方法 ????*/ ???private boolean extIsAllowed(String fileType, String ext) { ???????ext = ext.toLowerCase(); ???????ArrayList allowList = (ArrayList) allowedExtensions.get(fileType); ???????ArrayList denyList = (ArrayList) deniedExtensions.get(fileType); ???????if (allowList.size() == 0) { ???????????if (denyList.contains(ext)) { ???????????????return false; ???????????} else { ???????????????return true; ???????????} ???????} ???????if (denyList.size() == 0) { ???????????if (allowList.contains(ext)) { ???????????????return true; ???????????} else { ???????????????return false; ???????????} ???????} ???????return false; ???} }

<%@page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% ???String path = request.getContextPath(); ???pageContext.setAttribute("path",path);%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><script type="text/javascript" src="/ckeditor/ckeditor/ckeditor.js"></script><title>CKEditor</title><style type="text/css">* { ???font-family: "宋体"; ???font-size: 14px}</style> </head><body><form id="form1" name="form1" method="post" action="/ckeditor/display.jsp"><table width="650" height="400" border="0" align="center"> ????<tr> ???????<td>主题:</td> ???????<td><input name="title" type="text" id="title" size="80" ???????????maxlength="80" /></td> ???</tr> ???<tr> ???????<td valign="top">内容:</td> ???????<td><textarea cols="80" id="content" name="content"> ?????</textarea> ??????????<script type="text/javascript"> ???????????CKEDITOR.replace(‘content‘,{filebrowserUploadUrl : ‘${path}/ckeditor/uploader?Type=File‘, ???????????filebrowserImageUploadUrl : ‘${path}/ckeditor/uploader?Type=Image‘, ???????????filebrowserFlashUploadUrl : ‘${path}/ckeditor/uploader?Type=Flash‘ ???????????}); ???????</script></td> ???</tr> ???<tr> ???????<td></td> ???????<td><input type="submit" name="Submit" value="提交" /> <input ???????????type="reset" name="Reset" value="重置" /></td> ???</tr></table></form></body></html>

<%@page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Display Content</title></head><%request.setCharacterEncoding("UTF-8"); %><center><table width="600" border="0" bordercolor="000000" ???style="table-layout: fixed;"> ???<tr> ???????<td width="100" bordercolor="ffffff">主题:</td> ???????<td width="500" bordercolor="ffffff">${param.title}</td> ???</tr> ???<tr> ???????<td valign="top" bordercolor="ffffff">内容:</td> ???????<td valign="top" bordercolor="ffffff">${param.content}</td> ???</tr></table></center></html>