SpringMVC KindEditor在线编辑器之文件上传代码实例

package com.xishan.yueke.view.system; import java.io.File;import java.io.IOException;import java.io.PrintWriter;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.List;import java.util.Map;import java.util.Random; import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.servlet.ServletFileUpload;import org.apache.commons.io.FileUtils;import org.json.simple.JSONObject;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.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile; import com.xishan.yueke.view.BaseAction;  /** * Class Name: FileManageAction.java * Function: * 	在线编辑器控制器 * @author Yang Ji. * @DateTime 2015年8月10日 下午8:26:50   * @version 1.0  */@Controllerpublic class FileManageAction extends BaseAction {	// windows//	private String PATH_LINE = "//";	// linux	private String PATH_LINE = "/";		/**	 * 文件上传	 * @param request {@link HttpServletRequest}	 * @param response {@link HttpServletResponse}	 * @return json response	 */	@SuppressWarnings("unchecked")	@RequestMapping(value = "/fileUpload", method = RequestMethod.POST)	@ResponseBody	public void fileUpload(HttpServletRequest request, 			HttpServletResponse response,			@RequestParam("imgFile") MultipartFile[] imgFile) {		try {			response.setCharacterEncoding("utf-8");			PrintWriter out = response.getWriter();						//文件保存本地目录路径			String savePath = request.getSession().getServletContext().getRealPath(PATH_LINE) + "kindeditor"+PATH_LINE+"attached"+PATH_LINE;			//文件保存目录URL			String saveUrl = request.getContextPath() + PATH_LINE +"kindeditor"+PATH_LINE+"attached"+PATH_LINE; 			if(!ServletFileUpload.isMultipartContent(request)){				out.print(getError("请选择文件。"));				out.close();				return;			}			//检查目录			File uploadDir = new File(savePath);			if(!uploadDir.isDirectory()){				out.print(getError("上传目录不存在。"));				out.close();				return;			}			//检查目录写权限			if(!uploadDir.canWrite()){				out.print(getError("上传目录没有写权限。"));				out.close();				return;			} 			String dirName = request.getParameter("dir");			if (dirName == null) {				dirName = "image";			}						//定义允许上传的文件扩展名			Map<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,xml,txt,zip,rar,gz,bz2");						if(!extMap.containsKey(dirName)){				out.print(getError("目录名不正确。"));				out.close();				return;			}			//创建文件夹			savePath += dirName + PATH_LINE;			saveUrl += dirName + PATH_LINE;			File saveDirFile = new File(savePath);			if (!saveDirFile.exists()) {				saveDirFile.mkdirs();			}						SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");			String ymd = sdf.format(new Date());			savePath += ymd + PATH_LINE;			saveUrl += ymd + PATH_LINE;			File dirFile = new File(savePath);			if (!dirFile.exists()) {				dirFile.mkdirs();			}						//最大文件大小			long maxSize = 1000000;						// 保存文件			for(MultipartFile iFile : imgFile){				String fileName = iFile.getOriginalFilename();								//检查文件大小				if(iFile.getSize() > maxSize){					out.print(getError("上传文件大小超过限制。"));					out.close();					return;				}				//检查扩展名				String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();				if(!Arrays.<String>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。");					out.print(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。"));					out.close();					return;				} 				SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");				String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;				try{					File uploadedFile = new File(savePath, newFileName);										// 写入文件					FileUtils.copyInputStreamToFile(iFile.getInputStream(), uploadedFile);				}catch(Exception e){					out.print(getError("上传文件失败。"));					out.close();					return;				}								JSONObject obj = new JSONObject(); 				obj.put("error", 0); 				obj.put("url", saveUrl + newFileName); 								out.print(obj.toJSONString());				out.close();			}		} catch (Exception e) {			// TODO Auto-generated catch block			e.printStackTrace();		}	} 	private Map<String, Object> getError(String errorMsg) {		Map<String, Object> errorMap = new HashMap<String, Object>();		errorMap.put("error", 1);		errorMap.put("message", errorMsg);		return errorMap;	}		/**	 * 文件空间	 * @param request {@link HttpServletRequest}	 * @param response {@link HttpServletResponse}	 * @return json	 */	@SuppressWarnings("unchecked")	@RequestMapping(value = "/fileManager")	@ResponseBody	public void fileManager(HttpServletRequest request, HttpServletResponse response) {		try {			//根目录路径，可以指定绝对路径			String rootPath = request.getSession().getServletContext().getRealPath(PATH_LINE) + "kindeditor"+PATH_LINE+"attached"+PATH_LINE;			//根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/			String rootUrl = request.getContextPath() + PATH_LINE+"kindeditor"+PATH_LINE+"attached"+PATH_LINE;						response.setContentType("application/json; charset=UTF-8");			PrintWriter out = response.getWriter();						//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.print("无效的文件夹。");					out.close();					return;				}				rootPath += dirName + PATH_LINE;				rootUrl += dirName + PATH_LINE;				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(PATH_LINE) >= 0 ? str.substring(0, str.lastIndexOf(PATH_LINE) + 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.print("访问权限拒绝。");				out.close();				return;			}			//最后一个字符不是/			if (!"".equals(path) && !path.endsWith(PATH_LINE)) {				out.print("无效的访问参数验证。");				out.close();				return;			}			//目录不存在或不是目录			File currentPathFile = new File(currentPath);			if(!currentPathFile.isDirectory()){				out.print("文件夹不存在。");				out.close();				return;			} 			//遍历目录取的文件信息			List<Map<String, Object>> fileList = new ArrayList<Map<String, Object>>();			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());			} 			JSONObject result = new JSONObject();			result.put("moveup_dir_path", moveupDirPath);			result.put("current_dir_path", currentDirPath);			result.put("current_url", currentUrl);			result.put("total_count", fileList.size());			result.put("file_list", fileList);							out.println(result.toJSONString());			out.close();		} catch (IOException e) {			// TODO Auto-generated catch block			e.printStackTrace();		}	}		private class NameComparator implements Comparator<Map<String, Object>> {		public int compare(Map<String, Object> hashA, Map<String, Object> hashB) {			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"));			}		}	}		private class SizeComparator implements Comparator<Map<String, Object>> {		public int compare(Map<String, Object> hashA, Map<String, Object> hashB) {			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;				}			}		}	}		private class TypeComparator implements Comparator<Map<String, Object>> {		public int compare(Map<String, Object> hashA, Map<String, Object> hashB) {			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"));			}		}	}}

<script type="text/javascript">	KindEditor.ready(function(K) {		K.create('textarea[name="descript"]', {		uploadJson : 'http://localhost:8080/Test/fileUpload.htm',		        fileManagerJson : 'http://localhost:8080/Test/fileManager.htm',		        allowFileManager : true,		        allowImageUpload : true, 		autoHeightMode : true,		width : "640px",		height : "400px",		afterCreate : function() {this.loadPlugin('autoheight');},			afterBlur : function(){ this.sync(); } //Kindeditor下获取文本框信息		});	});</script>