upload_json.jsp文件,关键在于struts2对于struts2
过滤访问的jsp时,会改变reqeust的类型,由HttpServletRequest变成MultiPartRequestWrapper,所以在kindeditor原始的jsp接收上传的request的数据时,取得不了上传的数据内容。
修改之后的upload_json.jsp文件源码:
- <%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
- <%@ page import="java.util.*,java.io.*"%>
- <%@ page import="java.text.SimpleDateFormat"%>
- <%@ page import="org.apache.commons.fileupload.*"%>
- <%@ page import="org.apache.commons.fileupload.disk.*"%>
- <%@ page import="org.apache.commons.fileupload.servlet.*"%>
- <%@ page import="org.json.simple.*"%>
- <%@ page
- import="org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper"%>
- <%
- //文件保存目录路径 //D:\Tomcat6.0\webapps\zswz\attached/
- String savePath = request.getSession().getServletContext()
- .getRealPath("/")
- + "photo/upload/";
- //文件保存目录URL /zswz/attached/
- String saveUrl = request.getContextPath() + "/photo/upload/";
- //定义允许上传的文件扩展名
- //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"); //允许最大上传文件大小 struts.xml struts.multipart.maxSize=3G
- long maxSize = 3000000000l;
- response.setContentType("text/html; charset=UTF-8");
- if (!ServletFileUpload.isMultipartContent(request)) {
- out.println(getError("请选择文件。"));
- return;
- }
- //检查目录
- File uploadDir = new File(savePath);
- if (!uploadDir.isDirectory()) {
- out.println(getError("上传目录不存在。"));
- return;
- }
- //System.out.println("检查目录写权限");
- //检查目录写权限
- if (!uploadDir.canWrite()) {
- out.println(getError("上传目录没有写权限。"));
- return;
- }
- String dirName = request.getParameter("dir");
- //image
- if (dirName == null) {
- dirName = "image";
- }
- if (!extMap.containsKey(dirName)) {
- out.println(getError("目录名不正确。"));
- return;
- }
- //创建文件夹
- savePath += dirName + "/";//D:\Tomcat6.0\webapps\zswz\attached/image/
- saveUrl += dirName + "/";///zswz/attached/image/
- File saveDirFile = new File(savePath);
- if (!saveDirFile.exists()) {
- saveDirFile.mkdirs();
- }
- SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
- String ymd = sdf.format(new Date());
- savePath += ymd + "/";//D:\Tomcat6.0\webapps\zswz\attached/image/20111129/
- saveUrl += ymd + "/";///zswz/attached/image/20111129/
- File dirFile = new File(savePath);
- if (!dirFile.exists()) {
- dirFile.mkdirs();
- }
- if (!dirFile.isDirectory()) {
- out.println(getError("上传目录不存在 。"));
- return;
- }
- //检查目录写入权限
- if (!dirFile.canWrite()) {
- out.println(getError("上传目录没有写入权限。"));
- return;
- }
- //Struts2 请求 包装过滤器,此处使用struts2的包装过滤器
- MultiPartRequestWrapper wrapper = (MultiPartRequestWrapper) request;
- //获得上传的文件名
- String fileName = wrapper.getFileNames("imgFile")[0];
- //imgFile
- //获得文件过滤器
- File file = wrapper.getFiles("imgFile")[0];
- //检查扩展名
- String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1)
- .toLowerCase();
- if (!Arrays.<String> asList(extMap.get(dirName).split(","))
- .contains(fileExt)) {
- out.println(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;
- }
- //检查文件大小
- if (file.length() > maxSize)
- {
- out.println(getError("上传文件大小超过限制。"));
- return;
- }
- //重构上传图片的名称
- SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
- String newImgName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;byte[] buffer = new byte[1024];
- //获取文件输出流
- FileOutputStream fos = new FileOutputStream(savePath +"/" + newImgName);
- //获取内存中当前文件输入流
- InputStream in = new FileInputStream(file);
- try {
- int num = 0;
- while ((num = in.read(buffer)) > 0)
- {
- fos.write(buffer, 0, num); }}
- catch (Exception e) {
- e.printStackTrace(System.err);}