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!110 代码合并

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Merge pull request !110 from MAC/develop
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MAC 2022-04-01 00:38:40 +00:00 committed by Gitee
commit 5c38a79e19
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1 changed files with 42 additions and 14 deletions
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src/main/java/com/qiwenshare/file/controller/FiletransferController.java
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@ -25,6 +25,8 @@ import com.qiwenshare.ufop.util.UFOPUtils;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.bind.annotation.*;
@ -36,6 +38,7 @@ import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.List;
@ -146,7 +149,7 @@ public class FiletransferController {
@Operation(summary="预览文件", description="用于文件预览", tags = {"filetransfer"})
@GetMapping("/preview")
public void preview(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, PreviewDTO previewDTO){
public void preview(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, PreviewDTO previewDTO) throws IOException {
if (previewDTO.getPlatform() != null && previewDTO.getPlatform() == 2) {
filetransferService.previewPictureFile(httpServletResponse, previewDTO);
@ -176,18 +179,6 @@ public class FiletransferController {
return;
}
FileBean fileBean = fileService.getById(userFile.getFileId());
String mime= MimeUtils.getMime(userFile.getExtendName());
httpServletResponse.setHeader("Content-Type", mime);
String rangeString = httpServletRequest.getHeader("Range");//如果是video标签发起的请求就不会为null
if (StringUtils.isNotEmpty(rangeString)) {
long range = Long.valueOf(rangeString.substring(rangeString.indexOf("=") + 1, rangeString.indexOf("-")));
httpServletResponse.setContentLength(Math.toIntExact(fileBean.getFileSize()));
httpServletResponse.setHeader("Content-Range", String.valueOf(range + (Math.toIntExact(fileBean.getFileSize()) - 1)));
}
httpServletResponse.setHeader("Accept-Ranges", "bytes");
String fileName = userFile.getFileName() + "." + userFile.getExtendName();
try {
fileName = new String(fileName.getBytes("utf-8"), "ISO-8859-1");
@ -197,7 +188,44 @@ public class FiletransferController {
httpServletResponse.addHeader("Content-Disposition", "fileName=" + fileName);// 设置文件名
filetransferService.previewFile(httpServletResponse, previewDTO);
FileBean fileBean = fileService.getById(userFile.getFileId());
if (UFOPUtils.isVideoFile(userFile.getExtendName()) && !"true".equals(previewDTO.getIsMin())) {
Downloader downloader = ufopFactory.getDownloader(fileBean.getStorageType());
DownloadFile downloadFile = new DownloadFile();
downloadFile.setFileUrl(fileBean.getFileUrl());
InputStream inputStream = downloader.getInputStream(downloadFile);
String mime = MimeUtils.getMime(userFile.getExtendName());
httpServletResponse.setHeader("Content-Type", mime);
//获取从那个字节开始读取文件
String rangeString = httpServletRequest.getHeader("Range");
int range = 0;
if (StringUtils.isNotBlank(rangeString)) {
range = Integer.valueOf(rangeString.substring(rangeString.indexOf("=") + 1, rangeString.indexOf("-")));
}
//获取响应的输出流
OutputStream outputStream = httpServletResponse.getOutputStream();
//返回码需要为206，代表只处理了部分请求，响应了部分数据
httpServletResponse.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
// 每次请求只返回1MB的视频流
byte[] bytes = new byte[1024 * 1024 * 5];
System.out.println("文件长度：" + inputStream.available());
System.out.println("range：" + range);
inputStream.skip(range);
int len = IOUtils.read(inputStream, bytes);
//设置此次相应返回的数据长度
httpServletResponse.setContentLength(len);
httpServletResponse.setHeader("Accept-Ranges", "bytes");
//设置此次相应返回的数据范围
httpServletResponse.setHeader("Content-Range", "bytes " + range + "-" + (fileBean.getFileSize() - 1) + "/" + fileBean.getFileSize());
// 将这1MB的视频流响应给客户端
outputStream.write(bytes, 0, len);
outputStream.close();
} else {
filetransferService.previewFile(httpServletResponse, previewDTO);
}
}