SpringBoot2.X整合UEditor上传图片到OSS服务远程上传图片-Java版本

1，UEditor的请求全部是通过ueditor.config.js文件的serverUrl变量”/config”接口调用的。在”/config”接口中判断action是否为uploadimage类型，表示为上传图片，在if块中写远程上传图片的代码。

本人这里使用的springcloud的feign远程调用，feign上传文件报FileUploadException: the request was rejected because no multipart boundary was found异常，请参考：Springcloud配置Feign文件上传支持_hlp4207的博客-CSDN博客。

使用httpclient的请参考：HttpClient上传文件传入MultipartFile类型_lsqingfeng的博客-CSDN博客。

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.baidu.ueditor.ActionEnter;
import com.familylinkedu.common.support.JsonResult;
import com.familylinkedu.web.service.UploadService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.ClassUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

/**
 * 百度富文本编辑器
 *
 * @author lixx
 * @version 1.0
 * @date 2020-05-06 14:18
 */
@RestController
public class UEditorController {

	@Autowired
	private UploadService uploadService;

	@RequestMapping(value = "/config")
	public void config(HttpServletRequest request, HttpServletResponse response) throws IOException {
		response.setCharacterEncoding("utf-8");
		PrintWriter writer = response.getWriter();
		String action = request.getParameter("action");
		if ("uploadimage".equals(action)) {
			MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
			MultipartFile file = multipartHttpServletRequest.getFile("file");
			if(null == file || StringUtils.isBlank(file.getOriginalFilename())){
				writer.write("{'state':'文件不能为空'}");
			}
			// 原来的文件名
			String originalName = file.getOriginalFilename();
			// 文件后缀
			String suffix = originalName.substring(originalName.indexOf("."));
			JsonResult jsonResult = uploadService.updateImage(file);
			if (jsonResult.getCode().equals(0)) {
				Map<String, String> resultMap = JSONObject.parseObject(JSONObject.toJSONString(jsonResult.getData()), Map.class);
				Map<String, String> map = new HashMap<>(7);
				map.put("state", resultMap.get("status"));
				map.put("original", originalName);
				map.put("size", resultMap.get("size"));
				map.put("type", suffix);
				map.put("url", resultMap.get("path"));
				String json = JSON.toJSONString(map);
				writer.write(json);
			} else {
				writer.write("{'state':'上传失败'}");
			}
		} else {
			response.setContentType("application/json");
			// rootPath路径: /D:/develop/web-service/target/classes/static/ueditor/jsp, 上传的图片会在这里路径下面
			String rootPath = ClassUtils.getDefaultClassLoader().getResource("").getPath() + "static/ueditor/jsp";
			writer.write(new ActionEnter(request, rootPath).exec());
		}
		writer.flush();
		writer.close();
	}
}

返回的json格式请参考：

{
    "state": "SUCCESS",    // 成功
    "original": "77426e62c700605da38a24f1dd495a55.jpg",// 原文件名
    "size": "21382",    // 文件大小
    "title": "1589078472007085896.jpg", // 新文件名
    "type": ".jpg",    // 文件后缀
    "url": "http://www.baidu.com/upload/image/20200510/1589078472007085896.jpg"    // 文件路径
}

2，把config.json的imageUrlPrefix变量置空。