58 lines
2.0 KiB
Java
58 lines
2.0 KiB
Java
package cn.keking.service.impl;
|
||
|
||
import cn.keking.model.FileAttribute;
|
||
import cn.keking.model.ReturnResponse;
|
||
import cn.keking.service.FilePreview;
|
||
import cn.keking.utils.DownloadUtils;
|
||
import cn.keking.utils.FileUtils;
|
||
import com.google.common.collect.Lists;
|
||
import org.springframework.beans.factory.annotation.Autowired;
|
||
import org.springframework.stereotype.Service;
|
||
import org.springframework.ui.Model;
|
||
import org.springframework.web.context.request.RequestContextHolder;
|
||
|
||
import java.util.List;
|
||
|
||
/**
|
||
* Created by kl on 2018/1/17.
|
||
* Content :图片文件处理
|
||
*/
|
||
@Service
|
||
public class PictureFilePreviewImpl implements FilePreview {
|
||
|
||
@Autowired
|
||
FileUtils fileUtils;
|
||
|
||
@Autowired
|
||
DownloadUtils downloadUtils;
|
||
|
||
@Override
|
||
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
|
||
String fileKey = (String) RequestContextHolder.currentRequestAttributes().getAttribute("fileKey",0);
|
||
List<String> imgUrls = Lists.newArrayList(url);
|
||
try {
|
||
imgUrls.clear();
|
||
imgUrls.addAll(fileUtils.getImgCache(fileKey));
|
||
} catch (Exception e){
|
||
imgUrls = Lists.newArrayList(url);
|
||
}
|
||
// 不是http开头，浏览器不能直接访问，需下载到本地
|
||
if (url != null && !url.toLowerCase().startsWith("http")) {
|
||
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null);
|
||
if (0 != response.getCode()) {
|
||
model.addAttribute("fileType", fileAttribute.getSuffix());
|
||
model.addAttribute("msg", response.getMsg());
|
||
return "fileNotSupported";
|
||
} else {
|
||
String file = fileUtils.getRelativePath(response.getContent());
|
||
model.addAttribute("imgurls", Lists.newArrayList(file));
|
||
model.addAttribute("currentUrl", file);
|
||
}
|
||
} else {
|
||
model.addAttribute("imgurls", imgUrls);
|
||
model.addAttribute("currentUrl", url);
|
||
}
|
||
return "picture";
|
||
}
|
||
}
|