mirror of
https://gitee.com/kekingcn/file-online-preview.git
synced 2025-07-15 05:13:24 +08:00
101 lines
3.7 KiB
Java
101 lines
3.7 KiB
Java
package cn.keking.web.controller;
|
||
|
||
import cn.keking.model.FileAttribute;
|
||
import cn.keking.service.FilePreview;
|
||
import cn.keking.service.FilePreviewFactory;
|
||
|
||
import cn.keking.service.cache.CacheService;
|
||
import cn.keking.utils.DownloadUtils;
|
||
import cn.keking.service.FileHandlerService;
|
||
import org.slf4j.Logger;
|
||
import org.slf4j.LoggerFactory;
|
||
import org.springframework.stereotype.Controller;
|
||
import org.springframework.ui.Model;
|
||
import org.springframework.web.bind.annotation.RequestMapping;
|
||
import org.springframework.web.bind.annotation.RequestMethod;
|
||
import org.springframework.web.bind.annotation.ResponseBody;
|
||
|
||
import javax.servlet.http.HttpServletRequest;
|
||
import javax.servlet.http.HttpServletResponse;
|
||
import java.io.*;
|
||
import java.net.URLDecoder;
|
||
import java.util.Arrays;
|
||
import java.util.List;
|
||
|
||
/**
|
||
* @author yudian-it
|
||
*/
|
||
@Controller
|
||
public class OnlinePreviewController {
|
||
|
||
private final Logger logger = LoggerFactory.getLogger(OnlinePreviewController.class);
|
||
|
||
private final FilePreviewFactory previewFactory;
|
||
private final CacheService cacheService;
|
||
private final FileHandlerService fileHandlerService;
|
||
private final DownloadUtils downloadUtils;
|
||
|
||
public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService, DownloadUtils downloadUtils) {
|
||
this.previewFactory = filePreviewFactory;
|
||
this.fileHandlerService = fileHandlerService;
|
||
this.cacheService = cacheService;
|
||
this.downloadUtils = downloadUtils;
|
||
}
|
||
|
||
|
||
@RequestMapping(value = "/onlinePreview")
|
||
public String onlinePreview(String url, Model model, HttpServletRequest req) {
|
||
FileAttribute fileAttribute = fileHandlerService.getFileAttribute(url,req);
|
||
FilePreview filePreview = previewFactory.get(fileAttribute);
|
||
logger.info("预览文件url：{}，previewType：{}", url, fileAttribute.getType());
|
||
return filePreview.filePreviewHandle(url, model, fileAttribute);
|
||
}
|
||
|
||
@RequestMapping(value = "/picturesPreview")
|
||
public String picturesPreview(Model model, HttpServletRequest req) throws UnsupportedEncodingException {
|
||
String urls = req.getParameter("urls");
|
||
String currentUrl = req.getParameter("currentUrl");
|
||
logger.info("预览文件url：{}，urls：{}", currentUrl, urls);
|
||
// 路径转码
|
||
String decodedUrl = URLDecoder.decode(urls, "utf-8");
|
||
String decodedCurrentUrl = URLDecoder.decode(currentUrl, "utf-8");
|
||
// 抽取文件并返回文件列表
|
||
String[] imgs = decodedUrl.split("\\|");
|
||
List<String> imgUrls = Arrays.asList(imgs);
|
||
model.addAttribute("imgUrls", imgUrls);
|
||
model.addAttribute("currentUrl",decodedCurrentUrl);
|
||
return "picture";
|
||
}
|
||
|
||
/**
|
||
* 根据url获取文件内容
|
||
* 当pdfjs读取存在跨域问题的文件时将通过此接口读取
|
||
*
|
||
* @param urlPath url
|
||
* @param response response
|
||
*/
|
||
@RequestMapping(value = "/getCorsFile", method = RequestMethod.GET)
|
||
public void getCorsFile(String urlPath, HttpServletResponse response) {
|
||
logger.info("下载跨域pdf文件url：{}", urlPath);
|
||
try {
|
||
byte[] bytes = downloadUtils.getBytesFromUrl(urlPath);
|
||
downloadUtils.saveBytesToOutStream(bytes, response.getOutputStream());
|
||
} catch (IOException e) {
|
||
logger.error("下载跨域pdf文件异常，url：{}", urlPath, e);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 通过api接口入队
|
||
* @param url 请编码后在入队
|
||
*/
|
||
@RequestMapping("/addTask")
|
||
@ResponseBody
|
||
public String addQueueTask(String url) {
|
||
logger.info("添加转码队列url：{}", url);
|
||
cacheService.addQueueTask(url);
|
||
return "success";
|
||
}
|
||
|
||
}
|