java常用的编辑器之kindeditor

先上图，没图差不多就看不下去的，我懂！

来个毛爷的，看着好像就能发财一样。。。。



首先下载必要的文件和jar包：http://download.csdn.net/detail/xb12369/9516909

代码的结构：



1. 【资源文件】解压zip文件，将editor复制到项目的的webapps目录下。

2. 【jar包】将kindeditor/jsp/lib目录下的3个jar文件复制到Tomcat的lib目录下，并重新启动Tomcat。
* commons-fileupload-1.2.1.jar
* commons-io-1.4.jar
* json_simple-1.1.jar

3. 配置路径：

//文件保存目录路径

//String savePath = pageContext.getServletContext().getRealPath("/") + "attached/";

String savePath = (String)request.getAttribute("tempDir");

//文件保存目录URL

//String saveUrl  = request.getContextPath() + "/attached/";

String saveUrl  = request.getContextPath() + (String)request.getAttribute("imgDir");

这里有个说明：如果request.getAttribute不作类型转换的话，会报错的！即(String)request.getAttribute("imgDir");

4，根据自己对应的上传方式修改对应的上传部分的代码：

这是我的上传代码：

/*****************开始改造成自己的上传方法************************************/
DefaultMultipartHttpServletRequest multipartRequest = (DefaultMultipartHttpServletRequest)request;
if (multipartRequest != null) {
Iterator<String> itr = multipartRequest.getFileNames();
while (itr.hasNext()) {
MultipartFile img = multipartRequest.getFile(itr.next().toString());

String fileName = img.getOriginalFilename();

//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;
}

SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
try{
InputStream in = img.getInputStream();

FileOutputStream fs = new FileOutputStream(savePath+newFileName);

byte[] buffer = new byte[1024 * 1024];
int byteread = 0;
while ((byteread = in.read(buffer)) != -1) {
fs.write(buffer, 0, byteread);
}
fs.close();
in.close();
}catch(Exception e){
out.println(getError("上传文件失败。"));
return;
}

JSONObject obj = new JSONObject();
obj.put("error", 0);
obj.put("url", saveUrl + newFileName);
out.println(obj.toJSONString());
}

提供的上传方式：
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setHeaderEncoding("UTF-8");
List items = upload.parseRequest(request);
Iterator itr = items.iterator();
while (itr.hasNext()) {
FileItem item = (FileItem) itr.next();
String fileName = item.getName();
long fileSize = item.getSize();
if (!item.isFormField()) {
//检查文件大小
if(item.getSize() > maxSize){
out.println(getError("上传文件大小超过限制。"));
return;
}
//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;
}

SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
try{
File uploadedFile = new File(savePath, newFileName);
item.write(uploadedFile);
}catch(Exception e){
out.println(getError("上传文件失败。"));
return;
}

JSONObject obj = new JSONObject();
obj.put("error", 0);
obj.put("url", saveUrl + newFileName);
out.println(obj.toJSONString());
}
}
5、空格处理，如果不对某些特殊符号做特殊处理的话，会导致html代码丢失
存储的时候：

private String htmlspecialchars(String str) {
str = str.replaceAll("&", "&");
str = str.replaceAll("<", "<");
str = str.replaceAll(">", ">");
str = str.replaceAll("\"", """);
return str;
}

content = htmlspecialchars(content);
if(!StringUtils.isEmpty(id)){
Map<String, Object> map = new HashMap<String, Object>();
map.put("content", content);

this.activityInfoService.modify(id, map);
}

取出来的时候：
private String htmlspecialchars(String str) {
str = str.replaceAll("&", "&");
str = str.replaceAll("<", "<");
str = str.replaceAll(">", ">");
str = str.replaceAll(""", "\"");
//图片懒加载处理
//<img class="scrollLoading" data-url="http://7xlv3q.com2.z0.glb.qiniucdn.com${item.img }" src="<%=request.getContextPath()%>/easyui/app_h5/activity/images/grey.gif" >
//<img src="/imgs/image/20160511/20160511162627_319.jpg" alt="" />
str = str.replaceAll("src=", "data-url=").replaceAll("alt=\"\"", "class=\"scrollLoading\" src=\"<%=request.getContextPath()%>/easyui/app_h5/activity/images/grey.gif\"");
return str;
}

request.setAttribute("content", htmlspecialchars(info.getContent()));

good luck~