SpringBoot之KindEditor文件上传

package com.blog.springboot.controller;

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.tomcat.util.http.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 KindController {

    @RequestMapping(value = "/Kindeditor/uploadFile",method = RequestMethod.POST)
    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 + " + 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(imagegif,jpg,jpeg,png,bmp");

         最大文件大小
        long maxSize = 1000000;
        response.setContentType(text/html; charset=UTF-8if (!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
        uploadDir.exists()) {
            uploadDir.mkdirs();
        }

         检查目录写权限
        uploadDir.canWrite()) {
            writer.println(getError(上传目录没有写权限。;
        }

        String dirName = request.getParameter(dir);
        if (dirName == null) {
            dirName = ;
        }
        extMap.containsKey(dirName)) {
            writer.println(getError(目录名不正确。;
        }

        MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;
        Map<String,MultipartFile> fileMap = mRequest.getFileMap();
        String fileName = ;
        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。));
                ;
            }
            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。;
            }
            UUID uuid = UUID.randomUUID();
            String path = savePath + uuid.toString() +  fileExt;
            saveUrl = saveUrl + uuid.toString() +  fileExt;

            BufferedOutputStream outputStream = new BufferedOutputStream( FileOutputStream(path));
            FileCopyUtils.copy(mFile.getInputStream(),outputStream);

            JSONObject obj =  JSONObject();
            obj.put(error0);
            obj.put(urlprivate String getError(String message) {
        JSONObject obj =  JSONObject();
        obj.put();
        obj.put(message obj.toString();
    }

    @RequestMapping(value = /Kindeditor/fileManager RequestMethod.GET)
     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[] { gifjpgjpegpngbmp };
        System.out.println(rootPath);
        String dirName = request.getParameter(if (dirName != ) {
            if (!Arrays.<String>asList(flashmediafile }).contains(dirName)) {
                System.out.println(Invalid Directory name.);
                ;
            }
            rootPath += dirName + ;
            rootUrl += dirName + ;
            File saveDirFile =  File(rootPath);
            saveDirFile.exists()) {
                saveDirFile.mkdirs();
            }
        }
         根据path参数，设置各路径和URL
        String path = request.getParameter(path") != null ? request.getParameter(") : "";
        String currentPath = rootPath + path;
        String currentUrl = rootUrl + path;
        String currentDirPath = path;
        String moveupDirPath = if (!.equals(path)) {
            String str = currentDirPath.substring(0,currentDirPath.length() - );
            moveupDirPath = str.lastIndexOf(") >= 0 ? str.substring(1) : ;
        }

         排序形式，name or size or type
        String order = request.getParameter(order").toLowerCase() : name;

         不允许使用..移动到上一级目录
        if (path.indexOf(..) {
            System.Access is not allowed. 最后一个字符不是/
        "".equals(path) && !path.endsWith()) {
            System.Parameter is not valid. 目录不存在或不是目录
        File currentPathFile =  File(currentPath);
        currentPathFile.isDirectory()) {
            System.Directory does not exist. 遍历目录取的文件信息
        List<Hashtable> fileList = new ArrayList<Hashtable>();
        if (currentPathFile.listFiles() != for (File file : currentPathFile.listFiles()) {
                Hashtable<String,Object> hash = new Hashtable<String,Object>();
                String fileName = file.getName();
                if (file.isDirectory()) {
                    hash.put(is_dirtrue);
                    hash.put(has_file));
                    hash.put(filesize0Lis_photofalsefiletype);
                } else  (file.isFile()) {
                    String fileExt = fileName.substring(fileName.lastIndexOf().toLowerCase();
                    hash.put(asList(fileTypes).contains(fileExt));
                    hash.put(filenamedatetimenew SimpleDateFormat(yyyy-MM-dd HH:mm:ss).format(file.lastModified()));
                fileList.add(hash);
            }
        }

        if (size.equals(order)) {
            Collections.sort(fileList, SizeComparator());
        } type TypeComparator());
        } else {
            Collections.sort(fileList,1)"> NameComparator());
        }
        JSONObject result =  JSONObject();
        result.put(moveup_dir_pathcurrent_dir_pathcurrent_urltotal_countfile_listapplication/json; charset=UTF-8);
        System..println(result.toJSONString());
        PrintWriter writer = response.getWriter();
        writer.println(result);
    }

     NameComparator implements Comparator {
        int compare(Object a,Object b) {
            Hashtable hashA = (Hashtable) a;
            Hashtable hashB = (Hashtable) b;
            if (((Boolean) hashA.get(")) && !((Boolean) hashB.))) {
                return -;
            } if (!((Boolean) hashA.")) && ((Boolean) hashB.return  {
                return ((String) hashA.")).compareTo((String) hashB.));
            }
        }
    }

     SizeComparator implements Comparator {
        if (((Long) hashA.")) > ((Long) hashB.))) {
                    ;
                } ")) < ((Long) hashB. {
                    ;
                }
            }
        }
    }

     TypeComparator implements Comparator {
        ));
            }
        }
    }

}

var editor;
        KindEditor
                .ready(function(K) {
                    editor = K
                            .create(
                                    'textarea[id="postContent"]'../../blog-web/static/vendor/kindeditor/plugins/code/prettify.css ],filePostName : 这里就是指定文件上传的请求地址，上面也已经说了，upload_json.jsp就相当去一个servlet去进行保存文件，这个地方很重要
                                        uploadJson : Blog.url.api.KindEditorUpload,fileManagerJson :Blog.url.api.KindEditorFileManager,resizeType :