kindeditor的使用问题，请教！

cswhgloveu 2020-09-09 06:23:17

kindeditor的图片上传，报如下错误，在网上找了很久资料也没解决，借此宝地，求大神指教：

1、图片上传其实也成功了。2、图片上传路径、类型也入库成功了。
就是报如下错误。

org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.logException(AbstractHandlerExceptionResolver.java:197) - Resolved [org.springframework.http.converter.HttpMessageNotWritableException: No converter found for return value of type: class java.util.HashMap]

配置情况：pom.xml ,这些也是最新的了。

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.11.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.11.2</version>
</dependency>
<dependency>

<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.2</version>
</dependency>

在异常上暂停
JSON parse error

controller 部分代码

@RequestMapping(value ="/fileUpload")

    @ResponseBody

    public Map<String, Object> fileUpload(HttpServletRequest request,

                                          HttpServletResponse response) throws ServletException, IOException,

            FileUploadException {

        //这里的路径可以是绝对路径，也可以获取项目下的目录，这里使用的是绝对路径;

        //String savePath = request.getServletContext().getRealPath("/")+"yourPath/" ;



        ServletContext application = request.getSession().getServletContext();





        String savePath = application.getRealPath("/")+"kindeditor/" ;

        //这里的路径需要符合下面另一个RequestMapping方法

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

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



        // 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");

        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,txt,zip,rar,gz,bz2");



        // 最大文件大小 ,这里可以调节

        long maxSize = 1000000;



        response.setContentType("text/html; charset=UTF-8");

        response.setCharacterEncoding("UTF-8");

        if (!ServletFileUpload.isMultipartContent(request)) {

//            return "e";

            return getError("请选择文件。");

        }

        String dirName = request.getParameter("dir");

        if (dirName == null) {

            dirName = "image";

        }

        if (!extMap.containsKey(dirName)) {

            return getError("目录名不正确。");

//              return "e" ;

        }

        // 创建文件夹

        savePath += dirName + "/";

        saveUrl += dirName + "/";

        File saveDirFile = new File(savePath);

        if (!saveDirFile.exists()) {

            saveDirFile.mkdirs();

        }

        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

//        DateUtils  sdf= new DateUtils();



        String ymd = sdf.format(new Date());

        savePath += ymd + "/";

        saveUrl += ymd + "/";

        File dirFile = new File(savePath);

        if (!dirFile.exists()) {

            dirFile.mkdirs();

        }

        //这里需要后台springmvc-servlet.xml配置multipartResolver

        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

        multipartRequest.setCharacterEncoding("UTF-8");

        MultipartFile qqfile =multipartRequest.getFiles("imgFile").get(0);

        String oldName=qqfile.getOriginalFilename();

        String ext=qqfile.getOriginalFilename().substring(oldName.lastIndexOf(".") + 1);

        if (!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(ext)) {



            return getError("<font size='3'>非常抱歉，目前上传附件格式类型只允许为：<br/>" + extMap.get(dirName)

                    + "，你选择的文件【" + oldName + "】不符合要求，无法上传！</font>");

//            return "e";

        }

//        String fileSizeNumber = fileMaxSize.substring(0, fileMaxSize.indexOf("M"));

//        if (qqfile.getSize() > Long.valueOf(fileSizeNumber) * 1000 * 1000) {

//            return getError("<font size='3'>您选择的文件【" + oldName+ "】大小超过" + fileMaxSize + "限制，无法上传！</font>");

//        } 暂时注销



        String fileName = null;

        KindUploadFile uploadFile =null;

        String size=this.calculateFileSize(qqfile.getSize());

        try {

            String createTime= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());

            fileName = this.upload(qqfile, savePath);

            uploadFile = new KindUploadFile();

            uploadFile.setName(oldName);

            uploadFile.setPath(savePath+fileName);

            uploadFile.setSize(size);

            uploadFile.setCreateTime(createTime);

            uploadFile.setExt(ext);

            filesUploadService.save(uploadFile);

            Map<String, Object> succMap = new HashMap<String, Object>();

            succMap.put("error", 0);



           System.out.println("whg"+ saveUrl +"files"+fileName);



            succMap.put("url", saveUrl + fileName);

            return succMap;

//            return "html5" ;

//            return Json(succMap, "text/html;charset=UTF-8") ;



        } catch (Exception e) {

            e.printStackTrace();

            logger.error(e.getMessage());

            return getError("<font size='3'>您选择的文件【" + oldName+ "】上传失败！原因是：" + e.getMessage() + "</font>");

//            return "e" ;

        }

    }