写这篇文章前必须的感谢一下
http://my.oschina.net/zhzhenqin/blog这个博客的博主；
之前在测试的时候遇到一个IE不兼容的问题，就是这位大神帮忙解决的。
在把springmvc和KindEditor整合的时候主要是重写了KindEditor中的file_manager_json.jsp和upload_json.jsp
用springmvc的两个action替代了。
在这个整合的实例中没的上传功能用的不是springmvc特制的。
处理文件上传的代码如下：
@RequestMapping(value = "file_upload.do", method = RequestMethod.POST)
public void fileUpload(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
FileUploadException {
ServletContext application = request.getSession().getServletContext();
String savePath = application.getRealPath("/") + "attached/";
// 文件保存目录URL
String saveUrl = request.getContextPath() + "/attached/";
// 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.reset();
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
writer = response.getWriter();
// writer.println(json); //想办法把map转成json
if (!ServletFileUpload.isMultipartContent(request)) {
writer.println(objectMapper.writeValueAsString(getError("请选择文件。")));
return;
}
// 检查目录
File uploadDir = new File(savePath);
if (!uploadDir.isDirectory()) {
writer.println(objectMapper.writeValueAsString(getError("上传目录不存在。")));
return;
}
// 检查目录写权限
if (!uploadDir.canWrite()) {
writer.println(objectMapper.writeValueAsString(getError("上传目录没有写权限。")));
return;
}
String dirName = request.getParameter("dir");
if (dirName == null) {
dirName = "image";
}
if (!extMap.containsKey(dirName)) {
writer.println(objectMapper.writeValueAsString(getError("目录名不正确。")));
return;
}
// 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");
List items = upload.parseRequest(request);
Iterator itr = items.iterator();
while (itr.hasNext()) {
FileItem item = (FileItem) itr.next();
String fileName = item.getName();
if (!item.isFormField()) {
// 检查文件大小
if (item.getSize() > maxSize) {
writer.println(objectMapper.writeValueAsString(getError("上传文件大小超过限制。")));
}
// 检查扩展名
String fileExt = fileName.substring(
fileName.lastIndexOf(".") + 1).toLowerCase();
if (!Arrays.<String> asList(extMap.get(dirName).split(","))
.contains(fileExt)) {
writer.println(objectMapper.writeValueAsString(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。")));
return;
}
SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_"
+ new Random().nextInt(1000) + "." + fileExt;
try {
File uploadedFile = new File(savePath, newFileName);
item.write(uploadedFile);
} catch (Exception e) {
writer.println(objectMapper.writeValueAsString(getError("上传文件失败。")));
}
Map<String, Object> msg = new HashMap<String, Object>();
msg.put("error", 0);
msg.put("url", saveUrl + newFileName);
writer.println(objectMapper.writeValueAsString(msg));
return;
}
}
return;
}
处理服务器文件浏览的代码如下：
@RequestMapping(value = "file_manager.do", method = RequestMethod.GET)
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("/") + "attached/";
// 根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/
String rootUrl = request.getContextPath() + "/attached/";
// 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);
}
这个控制类的完整代码在附件
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