如何在springmvc中使用kindeditor上传文件-创新互联
如何在springmvc中使用kindeditor上传文件?很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
成都创新互联一直通过网站建设和网站营销帮助企业获得更多客户资源。 以"深度挖掘,量身打造,注重实效"的一站式服务,以成都网站制作、成都做网站、移动互联产品、成都营销网站建设服务为核心业务。10余年网站制作的经验,使用新网站建设技术,全新开发出的标准网站,不但价格便宜而且实用、灵活,特别适合中小公司网站制作。网站管理系统简单易用,维护方便,您可以完全操作网站资料,是中小公司快速网站建设的选择。下载kindeditor
压缩包里面的jar放到tomcat的lib文件夹下,kindeditor文件放工程里,不用的可以删掉
jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>Insert title here
KindAction.java
package com.leo.ows.action; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; 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.HashMap; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.springframework.stereotype.Controller; import org.springframework.util.FileCopyUtils; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; import com.alibaba.fastjson.JSONObject; @Controller public class KindAction { @RequestMapping(value ="/Kindeditor/uploadFile", method = RequestMethod.POST) public void uploadFile(HttpServletRequest request, HttpServletResponse response) throws Exception { PrintWriter writer = response.getWriter(); // 文件保存目录路径 String savePath = request.getSession().getServletContext().getRealPath("/") + "upload/image" + File.separatorChar + File.separatorChar; String saveUrl = request.getContextPath()+ File.separatorChar + "upload/image" + File.separatorChar + File.separatorChar; // 定义允许上传的文件扩展名 HashMapextMap = new HashMap (); extMap.put("image", "gif,jpg,jpeg,png,bmp"); // 大文件大小 long maxSize = 1000000; response.setContentType("text/html; charset=UTF-8"); if (!ServletFileUpload.isMultipartContent(request)) { writer.println(getError("请选择文件。")); return; } File uploadDir = new File(savePath); // 判断文件夹是否存在,如果不存在则创建文件夹 if (!uploadDir.exists()) { uploadDir.mkdirs(); } // 检查目录写权限 if (!uploadDir.canWrite()) { writer.println(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(getError("目录名不正确。")); return; } MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request; Map fileMap = mRequest.getFileMap(); String fileName = null; for (Iterator > it = fileMap.entrySet().iterator(); it.hasNext();) { Map.Entry entry = it.next(); MultipartFile mFile = entry.getValue(); fileName = mFile.getOriginalFilename(); // 检查文件大小 if (mFile.getSize() > maxSize) { writer.println(getError("上传文件大小超过限制。")); return; } String fileExt = fileName.substring(fileName.lastIndexOf(".")+1); if (!Arrays. asList(extMap.get(dirName).split(",")).contains(fileExt)) { writer.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; } UUID uuid = UUID.randomUUID(); String path = savePath + uuid.toString() +"."+ fileExt; saveUrl = saveUrl + uuid.toString() +"."+ fileExt; BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(path)); FileCopyUtils.copy(mFile.getInputStream(), outputStream); JSONObject obj = new JSONObject(); obj.put("error", 0); obj.put("url", saveUrl); writer.println(obj.toString()); } } private String getError(String message) { JSONObject obj = new JSONObject(); obj.put("error", 1); obj.put("message", message); return obj.toString(); } @RequestMapping(value = "/Kindeditor/fileManager", method = RequestMethod.GET) public void fileManager(HttpServletRequest request, HttpServletResponse response) throws Exception { //根目录路径,可以指定绝对路径,比如 /var/www/attached/ String rootPath = request.getSession().getServletContext().getRealPath("/")+ "upload/"; //根目录URL,可以指定绝对路径,比如 http://www.yoursite.com/attached/ String rootUrl = request.getContextPath() + "/upload/"; //图片扩展名 String[] fileTypes = new String[]{"gif", "jpg", "jpeg", "png", "bmp"}; System.out.println(rootPath); String dirName = request.getParameter("dir"); if (dirName != null) { if(!Arrays. asList(new String[]{"image", "flash", "media", "file"}).contains(dirName)){ System.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) { System.out.println("Access is not allowed."); return; } //最后一个字符不是/ if (!"".equals(path) && !path.endsWith("/")) { System.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()){ System.out.println("Directory does not exist."); return; } //遍历目录取的文件信息 List fileList = new ArrayList (); if(currentPathFile.listFiles() != null) { for (File file : currentPathFile.listFiles()) { Hashtable hash = new Hashtable (); 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. 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); response.setContentType("application/json; charset=UTF-8"); System.out.println(result.toJSONString()); PrintWriter writer=response.getWriter(); writer.println(result); } public 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")); } } } public 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; } } } } public 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")); } } } }
效果图
看完上述内容是否对您有帮助呢?如果还想对相关知识有进一步的了解或阅读更多相关文章,请关注创新互联行业资讯频道,感谢您对创新互联的支持。
网页名称:如何在springmvc中使用kindeditor上传文件-创新互联
文章分享:http://lswzjz.com/article/dpccej.html