springmvc+kindeditor文件上传实例详解
本文实例为大家分享了springmvc+kindeditor文件上传的具体代码,供大家参考,具体内容如下
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"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="external nofollow" > <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <script src="./kindeditor/kindeditor-all-min.js"></script> <script src="./kindeditor/lang/zh-CN.js"></script> <script> KindEditor .ready(function(K) { window.editor = K .create( '#editor_id', { uploadJson : 'Kindeditor/uploadFile', fileManagerJson : 'Kindeditor/fileManager', allowImageUpload : true, //多图上传 allowFileManager : true, //浏览图片空间 filterMode : false, //HTML特殊代码过滤 afterBlur : function() { this.sync(); }, //编辑器失去焦点(blur)时执行的回调函数(将编辑器的HTML数据同步到textarea) afterUpload : function(url, data, name) { //上传文件后执行的回调函数,必须为3个参数 if (name == "image" || name == "multiimage") { //单个和批量上传图片时 if (K("#pic").length > 0) { //文本框存在 document .getElementById('piclist').options[document .getElementById('piclist').length] = new Option( url, url); //下拉列表框增加一条 document .getElementById('piclist').selectedIndex += 1; //选定刚新增的这一条 K("#indexpicimg") .html( "<img src='" + url + "' width='150' height='95' />"); //重置图片展示区DIV的HTML内容 K("#pic").val(url); //重置文本框值 } } } }); }); </script> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form class="form-horizontal" role="form" action="articleAdd" method="post" > <div class="form-group"> <label for="firstname" class="col-sm-2 control-label">标题</label> <div class="col-sm-5"> <input type="text" class="form-control" id="title" name="title" placeholder="请输入标题"> </div> </div> <div class="form-group"> <label for="lastname" class="col-sm-2 control-label">类别</label> <div class="col-sm-3"> <select class="form-control" name="categoryId"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> </select> </div> </div> <div class="form-group"> <label for="lastname" class="col-sm-2 control-label">内容</label> <div class=" col-sm-5"> <textarea id="editor_id" name="details" class="form-control" > <strong>HTML内容</strong> </textarea> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-default">保存草稿</button> </div> </div> </form> </body> </html>
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 HashMap<String, String> extMap = new HashMap<String, String>(); extMap.put("image", "gif,jpg,jpeg,png,bmp"); // 最大文件大小 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<String, MultipartFile> fileMap = mRequest.getFileMap(); String fileName = null; for (Iterator<Map.Entry<String, MultipartFile>> it = fileMap.entrySet().iterator(); it.hasNext();) { Map.Entry<String, MultipartFile> 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.<String> 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.<String>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<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()); } 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
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