本博客前面还有一个简化版容易理解：https://blog.csdn.net/Strive279/article/details/121250542
1.自定义编辑器
// 创建编辑器
editor = KindEditor.create( "#editor_id", {
resizeType : 1,
allowImageUpload:true,//允许上传图片
allowFileManager:true, //允许对上传图片进行管理
uploadJson:root + '/fileUpload',
filePostName: 'imgFile',// name属性默认值
fileManagerJson:root + '/fileManager',
afterChange:function(){
this.sync();},
afterUpload: function(){
this.sync();}, //图片上传后，将上传内容同步到textarea中
afterBlur: function(){
this.sync();}, 失去焦点时，将上传内容同步到textarea中
afterCreate : function() {
this.sync(); },
afterBlur:function(){
this.sync(); },
items: ['source', '|', 'undo', 'redo', '|', 'preview', 'print', 'template', 'code', 'cut', 'copy', 'paste',
'plainpaste', 'wordpaste', '|', 'justifyleft', 'justifycenter', 'justifyright',
'justifyfull', 'insertorderedlist', 'insertunorderedlist', 'indent', 'outdent', 'subscript',
'superscript', 'clearhtml', 'quickformat', 'selectall', '|', 'fullscreen', '/',
'formatblock', 'fontname', 'fontsize', '|', 'forecolor', 'hilitecolor', 'bold',
'italic', 'underline', 'strikethrough', 'lineheight', 'removeformat', '|', 'image',
'table', 'hr', 'emoticons', 'baidumap', 'pagebreak',
'anchor', 'link', 'unlink'],
allowFileManager: true
});
2.Java实现代码
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.*;
@Controller
public class KindEditorUpload{
private String PATH_LINE = "/";
/**
* 文件上传
*
* @param request {@link HttpServletRequest}
* @param response {@link HttpServletResponse}
* @return json response
*/
@SuppressWarnings("unchecked")
@RequestMapping(value = "/fileUpload", method = RequestMethod.POST)
@ResponseBody
public void fileUpload(HttpServletRequest request, HttpServletResponse response,
@RequestParam("imgFile") MultipartFile[] imgFile) {
try {
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
// 文件保存本地目录路径
String savePath = PathConfig.temporaryFilePath + PathConfig.imgPath;
// 文件保存目录URL
String saveUrl = request.getContextPath() + "/KindEditor/uploads/";
System.out.println("savePath----------------->" + savePath);
System.out.println("saveUrl----------------->" + saveUrl);
if (!ServletFileUpload.isMultipartContent(request)) {
out.print(getError("请选择文件。"));
out.close();
return;
}
// 检查目录
File uploadDir = new File(savePath);
// if (!uploadDir.isDirectory()) {
// out.print(getError("上传目录不存在。"));
// out.close();
// return;
// }
if (!uploadDir.exists()) {
//如果不存在
uploadDir.mkdirs(); //创建该文件夹
}
// 检查目录写权限
if (!uploadDir.canWrite()) {
out.print(getError("上传目录没有写权限。"));
out.close();
return;
}
String dirName = request.getParameter("dir");
if (dirName == null) {
dirName = "image";
}
// 定义允许上传的文件扩展名
Map<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,xml,txt,zip,rar,gz,bz2");
if (!extMap.containsKey(dirName)) {
out.print(getError("目录名不正确。"));
out.close();
return;
}
// 创建文件夹
// savePath += dirName + PATH_LINE;
// saveUrl += dirName + PATH_LINE;
File saveDirFile = new File(savePath);
if (!saveDirFile.exists()) {
saveDirFile.mkdirs();
}
// //最大文件大小
// long maxSize = 1000000;
// 保存文件
for (MultipartFile iFile : imgFile) {
String fileName = iFile.getOriginalFilename();
// //检查文件大小
// if(iFile.getSize() > maxSize){
// out.print(getError("上传文件大小超过限制。"));
// out.close();
// return;
// }
// 检查扩展名
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();
if (!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(fileExt)) {
// return 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。");
out.print(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。"));
out.close();
return;
}
SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
try {
File uploadedFile = new File(savePath, newFileName);
// 写入文件
FileUtils.copyInputStreamToFile(iFile.getInputStream(), uploadedFile);
} catch (Exception e) {
out.print(getError("上传文件失败。"));
out.close();
return;
}
JSONObject obj = new JSONObject();
obj.put("error", 0);
// obj.put("url", request.getServletContext().getRealPath(saveUrl) + newFileName);
obj.put("url", "/showImg?imgUrl=" + newFileName);
out.print(obj.toJSONString());
out.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private Map<String, Object> getError(String errorMsg) {
Map<String, Object> errorMap = new HashMap<String, Object>();
errorMap.put("error", 1);
errorMap.put("message", errorMsg);
return errorMap;
}
/**
* @param imgUrl 图片在本地磁盘的位置 如：E:/teacherCompetition/1/images/1.jpg
* @param request
* @param response
*/
@RequestMapping("/showImg")
public void picToJSP(@RequestParam("imgUrl") String imgUrl, HttpServletRequest request, HttpServletResponse response){
FileInputStream in;
response.setContentType("application/octet-stream;charset=UTF-8");
try {
//图片读取路径
String basePath = PathConfig.temporaryFilePath + PathConfig.imgPath;
File file=new File(basePath + imgUrl);
if(!file.exists())
{
String pattern = "^file:[/]*";
imgUrl = imgUrl.replaceAll(pattern, "");
in=new FileInputStream(imgUrl);
} else {
in=new FileInputStream(basePath + imgUrl);
}
int i=in.available();
byte[]data=new byte[i];
in.read(data);
in.close();
//写图片
OutputStream outputStream=new BufferedOutputStream(response.getOutputStream());
outputStream.write(data);
outputStream.flush();
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 文件空间
*
* @param request {@link HttpServletRequest}
* @param response {@link HttpServletResponse}
* @return json
*/
@SuppressWarnings("unchecked")
@RequestMapping(value = "/fileManager")
@ResponseBody
public void fileManager(HttpServletRequest request, HttpServletResponse response) {
try {
// 根目录路径，可以指定绝对路径
String rootPath = PathConfig.temporaryFilePath + PathConfig.imgPath;
// 根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/
String rootUrl = PathConfig.temporaryFilePath + "/showImg?imgUrl=";
System.out.println("rootPath----------------->" + rootPath);
System.out.println("rootUrl----------------->" + rootUrl);
response.setContentType("application/json; charset=UTF-8");
PrintWriter out = response.getWriter();
// 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.print("无效的文件夹。");
out.close();
return;
}
// rootPath += dirName + PATH_LINE;
// rootUrl += PATH_LINE;
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(PATH_LINE) >= 0 ? str.substring(0, str.lastIndexOf(PATH_LINE) + 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.print("访问权限拒绝。");
out.close();
return;
}
// 最后一个字符不是/
if (!"".equals(path) && !path.endsWith(PATH_LINE)) {
out.print("无效的访问参数验证。");
out.close();
return;
}
// 目录不存在或不是目录
File currentPathFile = new File(currentPath);
if (!currentPathFile.isDirectory()) {
out.print("文件夹不存在。");
out.close();
return;
}
// 遍历目录取的文件信息
List<Map<String, Object>> fileList = new ArrayList<Map<String, Object>>();
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);
out.println(result.toJSONString());
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
pathConfig配置文件
package com.newdo.config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class PathConfig {
/**路径类型*/
public static String pathType;
@Value(value="${path.type}")
public void setSavePath(String savePath){
pathType = savePath;
}
/**临时文件存储目录*/
public static String temporaryFilePath;
@Value(value="${temporary.filePath}")
public void setSavePath1(String savePath){
temporaryFilePath = savePath;
}
/**临时文件存储后续目录*/
public static String temporaryPath;
@Value(value="${temporary.Path}")
public void setSavePath2(String savePath){
temporaryPath = savePath;
}
/**图片存储目录*/
public static String imgPath;
@Value(value="${img.Path}")
public void setSavePath3(String savePath){
imgPath = savePath;
}
}
application配置文件需要添加的参数
#静态资源
spring.mvc.static-path-pattern=/static/**
spring.resources.static-locations=classpath:/static/
#设置请求大小限制
spring.servlet.multipart.max-file-size=100MB
spring.servlet.multipart.max-request-size=100MB
#路径类型 windows:\\ liunx:/
path.type=\\
#path.type=/
#临时文件存放路径
temporary.filePath=D:\\dxproject\\temporaryFile
temporary.Path=\\resources\\temporaryFile\\
#temporary.filePath=/usr/zhgxrsgl-tomcat
#temporary.Path=/resources/temporaryFile/
#图片存放路径
img.Path=\\KindEditor\\uploads\\
#img.Path=/KindEditor/uploads/