整个源码上传在 http://download.csdn.net/source/3539767
注意有一点小bug【不支持中文图片上传】
web.xml 的相关配置
其中baseDir是文件上传后的目录。
<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>
servlet的完整源码
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; } }
测试页面
<%@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 : '${path}/ckeditor/uploader?Type=Flash' }); </script></td> </tr> <tr> <td></td> <td><input type="submit" name="Submit" value="提交" /> <input type="reset" name="Reset" value="重置" /></td> </tr> </table> </form> </body> </html>
display.jsp
<%@page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Display Content</title> </head> <%request.setCharacterEncoding("UTF-8"); %> <center> <table width="600" border="0" bordercolor="000000" style="table-layout: fixed;"> <tr> <td width="100" bordercolor="ffffff">主题:</td> <td width="500" bordercolor="ffffff">${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>