kindeditor Springmvc 整和解决图片上传问题

1. 在编辑页面引入js

<script type="text/javascript" charset="utf-8" src="${basePath }/js/plugin/kindeditor-4.1.7/kindeditor-min.js"></script>
<script type="text/javascript" charset="utf-8" src="${basePath }/js/plugin/kindeditor-4.1.7/lang/zh_CN.js"></script>

2.textarea绑定

<textarea name="content" class="common-textarea" id="content" style="width:100%; height:580px;visibility:hidden;"></textarea>

3.初始化插件

 var editor = KindEditor.create('textarea[name="content"]', {
         uploadJson : basePath + '/kindeditor/fileUpload',
         fileManagerJson : basePath + '/kindeditor/fileManager',
         allowFileManager : true,
         items : ['source', '|', 'undo', 'redo', '|', 'preview', 'template', 'cut', 'copy', 'paste',
                  'plainpaste', 'wordpaste', '|', 'justifyleft', 'justifycenter', 'justifyright',
                  'justifyfull', 'insertorderedlist', 'insertunorderedlist', 'indent', 'outdent', 'subscript',
                  'superscript', 'clearhtml', 'quickformat', 'selectall', '|', 'fullscreen', '/',
                  'formatblock', 'fontname', 'fontsize', '|', 'forecolor', 'hilitecolor', 'bold',
                  'italic', 'underline', 'strikethrough', 'lineheight', 'removeformat', '|', 'image','multiimage',
                  'flash', 'media', 'insertfile', 'table', 'hr', 'emoticons', 'baidumap', 'pagebreak',
                  'anchor', 'link', 'unlink']
     });

4.controller

 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 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 java.util.Random;

 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 import org.apache.commons.fileupload.FileItemFactory;
 import org.apache.commons.fileupload.FileUploadException;
 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
 import org.apache.commons.fileupload.servlet.ServletFileUpload;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.multipart.MultipartHttpServletRequest;

 import com.google.common.io.ByteStreams;

 @Controller
 @RequestMapping("kindeditor")
 public class KindEditorController {

     private static final ObjectMapper objectMapper = new ObjectMapper();

     @RequestMapping(value = "/fileUpload", method = RequestMethod.POST)
     @ResponseBody
     public Map<String, Object> fileUpload(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException,
             FileUploadException {
         ServletContext application = request.getSession().getServletContext();
         String savePath = application.getRealPath("/") + "images/";

         // 文件保存目录URL
         String saveUrl = request.getContextPath() + "/images/";

         // 定义允许上传的文件扩展名
         HashMap<String, String> extMap = new HashMap<String, String>();
         extMap.put("image", "gif,jpg,jpeg,png,bmp");
         extMap.put("flash", "swf,flv");
         extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
         extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");

         // 最大文件大小
         long maxSize = 1000000;

         response.setContentType("text/html; charset=UTF-8");

         if (!ServletFileUpload.isMultipartContent(request)) {
             return getError("请选择文件。");
         }
         // 检查目录
         File uploadDir = new File(savePath);
         if (!uploadDir.isDirectory()) {
             return getError("上传目录不存在。");
         }
         // 检查目录写权限
         if (!uploadDir.canWrite()) {
             return getError("上传目录没有写权限。");
         }

         String dirName = request.getParameter("dir");
         if (dirName == null) {
             dirName = "image";
         }
         if (!extMap.containsKey(dirName)) {
             return getError("目录名不正确。");
         }
         // 创建文件夹
         savePath += dirName + "/";
         saveUrl += dirName + "/";
         File saveDirFile = new File(savePath);
         if (!saveDirFile.exists()) {
             saveDirFile.mkdirs();
         }
         SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
         String ymd = sdf.format(new Date());
         savePath += ymd + "/";
         saveUrl += ymd + "/";
         File dirFile = new File(savePath);
         if (!dirFile.exists()) {
             dirFile.mkdirs();
         }

         FileItemFactory factory = new DiskFileItemFactory();
         ServletFileUpload upload = new ServletFileUpload(factory);
         upload.setHeaderEncoding("UTF-8");

         MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

         Iterator item = multipartRequest.getFileNames();
         while (item.hasNext()) {

             String fileName = (String) item.next();

             MultipartFile file = multipartRequest.getFile(fileName);

             // 检查文件大小

             if (file.getSize() > maxSize) {

                 return getError("上传文件大小超过限制。");

             }

             // 检查扩展名

             String fileExt = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".") + 1).toLowerCase();

             if (!Arrays. asList(extMap.get(dirName).split(",")).contains(fileExt)) {
                 return getError("上传文件扩展名是不允许的扩展名。\n只允许"
                         + extMap.get(dirName) + "格式。");

             }
             SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");

             String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;

             try {

             File uploadedFile = new File(savePath, newFileName);

             ByteStreams.copy(file.getInputStream(), new FileOutputStream(uploadedFile));

             } catch (Exception e) {

                 return getError("上传文件失败。");

             }
             Map<String, Object> msg = new HashMap<String, Object>();
             msg.put("error", 0);
             msg.put("url", saveUrl + newFileName);
             return msg;
             }
         return null;
     }

     private Map<String, Object> getError(String message) {
         Map<String, Object> msg = new HashMap<String, Object>();
         msg.put("error", 1);
         msg.put("message", message);
         return msg;
     }

     @RequestMapping(value = "/fileManager", method = RequestMethod.POST)
     public void fileManager(HttpServletRequest request,
             HttpServletResponse response) throws ServletException, IOException {
         ServletContext application = request.getSession().getServletContext();
         ServletOutputStream out = response.getOutputStream();
         // 根目录路径，可以指定绝对路径，比如 /var/www/attached/
         String rootPath = application.getRealPath("/") + "images/";
         // 根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/
         String rootUrl = request.getContextPath() + "/images/";
         // 图片扩展名
         String[] fileTypes = new String[] { "gif", "jpg", "jpeg", "png", "bmp" };

         String dirName = request.getParameter("dir");
         if (dirName != null) {
             if (!Arrays.<String> asList(
                     new String[] { "image", "flash", "media", "file" })
                     .contains(dirName)) {
                 out.println("Invalid Directory name.");
                 return;
             }
             rootPath += dirName + "/";
             rootUrl += dirName + "/";
             File saveDirFile = new File(rootPath);
             if (!saveDirFile.exists()) {
                 saveDirFile.mkdirs();
             }
         }
         // 根据path参数，设置各路径和URL
         String path = request.getParameter("path") != null ? request
                 .getParameter("path") : "";
         String currentPath = rootPath + path;
         String currentUrl = rootUrl + path;
         String currentDirPath = path;
         String moveupDirPath = "";
         if (!"".equals(path)) {
             String str = currentDirPath.substring(0,
                     currentDirPath.length() - 1);
             moveupDirPath = str.lastIndexOf("/") >= 0 ? str.substring(0,
                     str.lastIndexOf("/") + 1) : "";
         }

         // 排序形式，name or size or type
         String order = request.getParameter("order") != null ? request
                 .getParameter("order").toLowerCase() : "name";

         // 不允许使用..移动到上一级目录
         if (path.indexOf("..") >= 0) {
             out.println("Access is not allowed.");
             return;
         }
         // 最后一个字符不是/
         if (!"".equals(path) && !path.endsWith("/")) {
             out.println("Parameter is not valid.");
             return;
         }
         // 目录不存在或不是目录
         File currentPathFile = new File(currentPath);
         if (!currentPathFile.isDirectory()) {
             out.println("Directory does not exist.");
             return;
         }
         // 遍历目录取的文件信息
         List<Hashtable> fileList = new ArrayList<Hashtable>();
         if (currentPathFile.listFiles() != null) {
             for (File file : currentPathFile.listFiles()) {
                 Hashtable<String, Object> hash = new Hashtable<String, Object>();
                 String fileName = file.getName();
                 if (file.isDirectory()) {
                     hash.put("is_dir", true);
                     hash.put("has_file", (file.listFiles() != null));
                     hash.put("filesize", 0L);
                     hash.put("is_photo", false);
                     hash.put("filetype", "");
                 } else if (file.isFile()) {
                     String fileExt = fileName.substring(
                             fileName.lastIndexOf(".") + 1).toLowerCase();
                     hash.put("is_dir", false);
                     hash.put("has_file", false);
                     hash.put("filesize", file.length());
                     hash.put("is_photo", Arrays.<String> asList(fileTypes)
                             .contains(fileExt));
                     hash.put("filetype", fileExt);
                 }
                 hash.put("filename", fileName);
                 hash.put("datetime",
                         new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(file
                                 .lastModified()));
                 fileList.add(hash);
             }
         }

         if ("size".equals(order)) {
             Collections.sort(fileList, new SizeComparator());
         } else if ("type".equals(order)) {
             Collections.sort(fileList, new TypeComparator());
         } else {
             Collections.sort(fileList, new NameComparator());
         }
         Map<String, Object> msg = new HashMap<String, Object>();
         msg.put("moveup_dir_path", moveupDirPath);
         msg.put("current_dir_path", currentDirPath);
         msg.put("current_url", currentUrl);
         msg.put("total_count", fileList.size());
         msg.put("file_list", fileList);
         response.setContentType("application/json; charset=UTF-8");
         String msgStr = objectMapper.writeValueAsString(msg);
         out.println(msgStr);
     }

     class NameComparator implements Comparator {
         public int compare(Object a, Object b) {
             Hashtable hashA = (Hashtable) a;
             Hashtable hashB = (Hashtable) b;
             if (((Boolean) hashA.get("is_dir"))
                     && !((Boolean) hashB.get("is_dir"))) {
                 return -1;
             } else if (!((Boolean) hashA.get("is_dir"))
                     && ((Boolean) hashB.get("is_dir"))) {
                 return 1;
             } else {
                 return ((String) hashA.get("filename"))
                         .compareTo((String) hashB.get("filename"));
             }
         }
     }

     class SizeComparator implements Comparator {
         public int compare(Object a, Object b) {
             Hashtable hashA = (Hashtable) a;
             Hashtable hashB = (Hashtable) b;
             if (((Boolean) hashA.get("is_dir"))
                     && !((Boolean) hashB.get("is_dir"))) {
                 return -1;
             } else if (!((Boolean) hashA.get("is_dir"))
                     && ((Boolean) hashB.get("is_dir"))) {
                 return 1;
             } else {
                 if (((Long) hashA.get("filesize")) > ((Long) hashB
                         .get("filesize"))) {
                     return 1;
                 } else if (((Long) hashA.get("filesize")) < ((Long) hashB
                         .get("filesize"))) {
                     return -1;
                 } else {
                     return 0;
                 }
             }
         }
     }

     class TypeComparator implements Comparator {
         public int compare(Object a, Object b) {
             Hashtable hashA = (Hashtable) a;
             Hashtable hashB = (Hashtable) b;
             if (((Boolean) hashA.get("is_dir"))
                     && !((Boolean) hashB.get("is_dir"))) {
                 return -1;
             } else if (!((Boolean) hashA.get("is_dir"))
                     && ((Boolean) hashB.get("is_dir"))) {
                 return 1;
             } else {
                 return ((String) hashA.get("filetype"))
                         .compareTo((String) hashB.get("filetype"));
             }
         }
     }

 }