@RestController

public class UeditorController {

    @RequestMapping("/ueditorConfig")

    public void getUEditorConfig(HttpServletResponse response,HttpServletRequest request){

        String rootPath = "此处配置项目中config.json文件路径";

        try {

            String exec = new ActionEnter(request, rootPath).exec();

            PrintWriter writer = response.getWriter();

            writer.write(exec);

            writer.flush();

            writer.close();

        } catch (IOException | JSONException e) {

            e.printStackTrace();

        }

    }

}

package com.baidu.ueditor.upload;

import com.baidu.ueditor.PathFormat;

import com.baidu.ueditor.define.AppInfo;

import com.baidu.ueditor.define.BaseState;

import com.baidu.ueditor.define.FileType;

import com.baidu.ueditor.define.State;

import org.apache.commons.fileupload.servlet.ServletFileUpload;

import org.springframework.web.multipart.MultipartFile;

import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.servlet.http.HttpServletRequest;

import java.io.IOException;

import java.io.InputStream;

import java.util.Arrays;

import java.util.List;

import java.util.Map;

public class BinaryUploader {

	public static final State save(HttpServletRequest request,

			Map<String, Object> conf) {

		// FileItemStream fileStream = null;

		// boolean isAjaxUpload = request.getHeader( "X_Requested_With" ) != null;

		if (!ServletFileUpload.isMultipartContent(request)) {

			return new BaseState(false, AppInfo.NOT_MULTIPART_CONTENT);

		}

        // ServletFileUpload upload = new ServletFileUpload(

			// 	new DiskFileItemFactory());

        //

        // if ( isAjaxUpload ) {

        //     upload.setHeaderEncoding( "UTF-8" );

        // }

		try {

			// FileItemIterator iterator = upload.getItemIterator(request);

            //

			// while (iterator.hasNext()) {

			// 	fileStream = iterator.next();

            //

			// 	if (!fileStream.isFormField())

			// 		break;

			// 	fileStream = null;

			// }

            //

			// if (fileStream == null) {

			// 	return new BaseState(false, AppInfo.NOTFOUND_UPLOAD_DATA);

			// }

			MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

			MultipartFile multipartFile = multipartRequest.getFile(conf.get("fieldName").toString());

			if(multipartFile==null){

				return new BaseState(false, AppInfo.NOTFOUND_UPLOAD_DATA);

			}

			String savePath = (String) conf.get("savePath");

			//String originFileName = fileStream.getName();

			String originFileName = multipartFile.getOriginalFilename();

			String suffix = FileType.getSuffixByFilename(originFileName);

			originFileName = originFileName.substring(0,

					originFileName.length() - suffix.length());

			savePath = savePath + suffix;

			long maxSize = ((Long) conf.get("maxSize")).longValue();

			if (!validType(suffix, (String[]) conf.get("allowFiles"))) {

				return new BaseState(false, AppInfo.NOT_ALLOW_FILE_TYPE);

			}

			savePath = PathFormat.parse(savePath, originFileName);

			String physicalPath = (String) conf.get("rootPath") + savePath;

			//InputStream is = fileStream.openStream();

			InputStream is = multipartFile.getInputStream();

			State storageState = StorageManager.saveFileByInputStream(is,

					physicalPath, maxSize);

			is.close();

			if (storageState.isSuccess()) {

				storageState.putInfo("url", PathFormat.format(savePath));

				storageState.putInfo("type", suffix);

				storageState.putInfo("original", originFileName + suffix);

			}

			return storageState;

		// } catch (FileUploadException e) {

		// 	return new BaseState(false, AppInfo.PARSE_REQUEST_ERROR);

		} catch (IOException e) {

		}

		return new BaseState(false, AppInfo.IO_ERROR);

	}

	private static boolean validType(String type, String[] allowTypes) {

		List<String> list = Arrays.asList(allowTypes);

		return list.contains(type);

	}

}