content: package com.ruoyi.web.controller.common;
  
  import java.io.UnsupportedEncodingException;
  import java.net.URLEncoder;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.PostMapping;
  import org.springframework.web.bind.annotation.ResponseBody;
  import org.springframework.web.multipart.MultipartFile;
  import com.ruoyi.common.base.AjaxResult;
  import com.ruoyi.common.config.Global;
  import com.ruoyi.common.utils.file.FileUtils;
  import com.ruoyi.framework.config.ServerConfig;
  import com.ruoyi.framework.util.FileUploadUtils;
  
  /**
   * 通用请求处理
   * 
   * @author ruoyi
   */
  @Controller
  public class CommonController
  {
      private static final Logger log = LoggerFactory.getLogger(CommonController.class);
  
      /**
       * 文件上传路径
       */
      public static final String UPLOAD_PATH = "/profile/upload/";
  
      @Autowired
      private ServerConfig serverConfig;
  
      /**
       * 通用下载请求
       * 
       * @param fileName 文件名称
       * @param delete 是否删除
       */
      @GetMapping("common/download")
      public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
      {
          String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
          try
          {
              String filePath = Global.getDownloadPath() + fileName;
  
              response.setCharacterEncoding("utf-8");
              response.setContentType("multipart/form-data");
              response.setHeader("Content-Disposition",
                      "attachment;fileName=" + setFileDownloadHeader(request, realFileName));
              FileUtils.writeBytes(filePath, response.getOutputStream());
              if (delete)
              {
                  FileUtils.deleteFile(filePath);
              }
          }
          catch (Exception e)
          {
              log.error("下载文件失败", e);
          }
      }
  
      /**
       * 通用上传请求
       */
      @PostMapping("/common/upload")
      @ResponseBody
      public AjaxResult uploadFile(MultipartFile file) throws Exception
      {
          try
          {
              // 上传文件路径
              String filePath = Global.getUploadPath();
              // 上传并返回新文件名称
              String fileName = FileUploadUtils.upload(filePath, file);
              String url = serverConfig.getUrl() + UPLOAD_PATH + fileName;
              AjaxResult ajax = AjaxResult.success();
              ajax.put("fileName", fileName);
              ajax.put("url", url);
              return ajax;
          }
          catch (Exception e)
          {
              return AjaxResult.error(e.getMessage());
          }
      }
  
      public String setFileDownloadHeader(HttpServletRequest request, String fileName) throws UnsupportedEncodingException
      {
          final String agent = request.getHeader("USER-AGENT");
          String filename = fileName;
          if (agent.contains("MSIE"))
          {
              // IE浏览器
              filename = URLEncoder.encode(filename, "utf-8");
              filename = filename.replace("+", " ");
          }
          else if (agent.contains("Firefox"))
          {
              // 火狐浏览器
              filename = new String(fileName.getBytes(), "ISO8859-1");
          }
          else if (agent.contains("Chrome"))
          {
              // google浏览器
              filename = URLEncoder.encode(filename, "utf-8");
          }
          else
          {
              // 其它浏览器
              filename = URLEncoder.encode(filename, "utf-8");
          }
          return filename;
      }
  }
  