springMVC+freemarker运行KindEditor插件

我把图片保存在根目录下，自己写了一个方法获得图片。

1.js代码处理

<script>
var editor;
KindEditor.ready(function(K) {
var options = {
filterMode : true,
afterChange : function() {
K('.word_count1').html(this.count());
K('.word_count2').html(this.count('text'));
},
uploadJson : '/svc/marketing/emailMarketing.htm?method=upload',
allowFileManager : false,
allowFlashUpload :false,
allowMediaUpload : false,
allowFileUpload :false
};
editor = K.create('textarea[name="emailContent"]', options);
});

function emailPopUp(){
var subject = $.trim($('#subject').val());
if(subject == ''){
alert('主题不能为空！');
return
}
if(editor.isEmpty()){
alert('请填写邮件内容！');
return
}
// 取得HTML内容
var html = editor.html();
// 同步数据后可以直接取得textarea的value
editor.sync();
$('#mainForm').submit();
}

</script>

2.Controller代码处理

/**
* KindEditor文件上传
* @param request
* @param response
* @param model
* @param session
* @throws JSONException
* @throws FileUploadException
*/
@RequestMapping(params = "method=upload")
public void upload(HttpServletRequest request,HttpServletResponse response, ModelMap model, HttpSession session) throws JSONException, FileUploadException {
String merchantId = session.getAttribute("machantId").toString(); //商户的Id
//文件保存目录路径
String savePath = "/opt/pay/svc/upload/attached/";
//取图片的连接
String getImageUrl = "/svc/marketing/emailMarketing.htm?method=getImage";

//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;

if(!ServletFileUpload.isMultipartContent(request)){
writeMsg(response, "请选择文件。");
return;
}
//检查目录
File uploadDir = new File(savePath);
if(!uploadDir.isDirectory()){
writeMsg(response, "上传目录不存在。");
return;
}
//检查目录写权限
if(!uploadDir.canWrite()){
writeMsg(response, "上传目录没有写权限。");
return;
}

String dirName = request.getParameter("dir");
if (dirName == null) {
dirName = "image";
}
if(!extMap.containsKey(dirName)){
writeMsg(response, "目录名不正确。");
return;
}

//创建文件夹,加上商户的Id
savePath += dirName + "/"+merchantId+"/";
getImageUrl += "&dirName="+dirName + "/"+merchantId+"/";
File saveDirFile = new File(savePath);
if (!saveDirFile.exists()) {
saveDirFile.mkdirs();
}
//加上年月日
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
String ymd = sdf.format(new Date());
savePath += ymd + "/";
getImageUrl += "&date="+ymd + "/";
File dirFile = new File(savePath);
if (!dirFile.exists()) {
dirFile.mkdirs();
}

DefaultMultipartHttpServletRequest mrequest= (DefaultMultipartHttpServletRequest)request;
Map map=mrequest.getFileMap();
Collection<MultipartFile> collection = map.values();
Iterator it = collection.iterator();

while (it.hasNext()) {
CommonsMultipartFile file=(CommonsMultipartFile) it.next();
if(!file.isEmpty()){
long fileSize = file.getSize(); //文件大小
String fileName = file.getOriginalFilename(); //文件名
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase(); //文件后缀

if(fileSize > maxSize){
writeMsg(response,"上传文件大小超过限制100M。");
return;
}
if(!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(fileExt)){
writeMsg(response,"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);
file.transferTo(uploadedFile);
}catch(Exception e){
writeMsg(response, "上传文件失败。");
return;
}
JSONObject obj = new JSONObject();
obj.put("error", 0);
obj.put("url", getImageUrl +"&imageName="+ newFileName);
this.writeJson(response, obj.toString());
}
}

}

/**
* 输出信息
* @param response
* @param message
* @throws JSONException
*/
private void writeMsg(HttpServletResponse response, String message) throws JSONException{
JSONObject obj = new JSONObject();
obj.put("error", 1);
obj.put("message", message);
this.writeJson(response, obj.toString());
}

/**
* 输出json
* @param response
* @param msg
*/
private void writeJson(HttpServletResponse response, String msg){
/************以下是解决避免ie下载文件 start*************/
response.reset();
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
response.setContentType("text/html");
PrintWriter writer = null;
try {
writer = response.getWriter();
writer.println(msg);
writer.flush();
} catch (IOException e) {
e.printStackTrace();
}finally{
if (writer != null) {
writer.close();
}
}
/************以下是解决避免ie下载文件 end*************/
}

@RequestMapping(params = "method=getImage", method = RequestMethod.GET)
public void getImage(HttpServletRequest request, HttpServletResponse response) throws IOException {
OutputStream out = response.getOutputStream();
AffineTransform transform = new AffineTransform();
try {
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.addHeader("Cache-Control", "no-cache");
response.setContentType("image/jpeg");

String dirName = (String) request.getParameter("dirName");
String date = (String) request.getParameter("date");
String imageName = (String) request.getParameter("imageName");

String imageUrl = "/opt/pay/svc/upload/attached/";
imageUrl += dirName + date + imageName;
BufferedImage bis = null;
bis = ImageIO.read(new File(imageUrl));// 读取历史上传文件

int w = bis.getWidth();
int h = bis.getHeight();

double sx = 1d;
double sy = 1d;

transform.setToScale(sx, sy);
AffineTransformOp ato = new AffineTransformOp(transform, null);

if (imageUrl != null && imageUrl.contains("png")) {
ImageIO.write(bis, "PNG", out);
} else {
BufferedImage bid = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
ato.filter(bis, bid);
ImageIO.write(bid, "jpeg", out);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (out != null)
out.close();
}
}