base/file-online-preview
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优化、精简代码。使用 @GetMapping、@PostMapping 替换 @RequestMapping

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This commit is contained in:
kl
2022-07-25 17:26:02 +08:00
committed by kl
parent 6efe15788c
commit b099d52520
7 changed files with 86 additions and 80 deletions
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38
server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
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@ -8,6 +8,8 @@ import cn.keking.utils.ConvertPicUtil;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.WebUtils;
import cn.keking.web.filter.BaseUrlFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
@ -18,12 +20,15 @@ import java.util.List;
/**
* tiff 图片文件处理
*
* @author kl (http://kailing.pub)
* @since 2021/2/8
*/
@Service
public class TiffFilePreviewImpl implements FilePreview {
private final static Logger logger = LoggerFactory.getLogger(TiffFilePreviewImpl.class);
private final PictureFilePreviewImpl pictureFilePreview;
private static final String INITIALIZE_MEMORY_SIZE = "initializeMemorySize";
//默认初始化 50MB 内存
@ -43,25 +48,25 @@ public class TiffFilePreviewImpl implements FilePreview {
tifPreviewType = tifOnLinePreviewType;
}
if("tif".equalsIgnoreCase(tifPreviewType)){
if ("tif".equalsIgnoreCase(tifPreviewType)) {
pictureFilePreview.filePreviewHandle(url,model,fileAttribute);
String fileSize = WebUtils.getUrlParameterReg(url,INITIALIZE_MEMORY_SIZE);
if(StringUtils.hasText(fileSize)){
model.addAttribute(INITIALIZE_MEMORY_SIZE,fileSize);
}else {
model.addAttribute(INITIALIZE_MEMORY_SIZE,Long.toString(INITIALIZE_MEMORY_SIZE_VALUE_DEFAULT));
pictureFilePreview.filePreviewHandle(url, model, fileAttribute);
String fileSize = WebUtils.getUrlParameterReg(url, INITIALIZE_MEMORY_SIZE);
if (StringUtils.hasText(fileSize)) {
model.addAttribute(INITIALIZE_MEMORY_SIZE, fileSize);
} else {
model.addAttribute(INITIALIZE_MEMORY_SIZE, Long.toString(INITIALIZE_MEMORY_SIZE_VALUE_DEFAULT));
}
return TIFF_FILE_PREVIEW_PAGE;
}else if("jpg".equalsIgnoreCase(tifPreviewType) || "pdf".equalsIgnoreCase(tifPreviewType)){
} else if ("jpg".equalsIgnoreCase(tifPreviewType) || "pdf".equalsIgnoreCase(tifPreviewType)) {
String inputFileName = url.substring(url.lastIndexOf("/") + 1);
String inputFileNamePrefix = inputFileName.substring(0, inputFileName.lastIndexOf("."));
String strLocalTif = fileDir + inputFileName;
File fileTiff = new File(strLocalTif);
// 如果本地不存在这个tif文件，则下载
if(!fileTiff.exists()){
if (!fileTiff.exists()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, inputFileName);
if (response.isFailure()) {
return NOT_SUPPORTED_FILE_PAGE;
@ -69,22 +74,23 @@ public class TiffFilePreviewImpl implements FilePreview {
}
String baseUrl = BaseUrlFilter.getBaseUrl();
if("pdf".equalsIgnoreCase(tifPreviewType)){
if ("pdf".equalsIgnoreCase(tifPreviewType)) {
// 以PDF模式预览的过程
File filePdf = new File(fileDir + inputFileNamePrefix + ".pdf");
// 如果本地不存在对应的pdf，则调用转换过程。否则直接用现有的pdf文件
if(!filePdf.exists()){
if (!filePdf.exists()) {
filePdf = ConvertPicUtil.convertTif2Pdf(strLocalTif, fileDir + inputFileNamePrefix + ".pdf");
}
// 如果pdf已经存在，则将url路径加入到对象中，返回给页面
if(filePdf.exists()){
assert filePdf != null;
if (filePdf.exists()) {
String pdfUrl = baseUrl + inputFileNamePrefix + ".pdf";
model.addAttribute("pdfUrl", pdfUrl);
return PDF_FILE_PREVIEW_PAGE;
}
}else{
} else {
// 以JPG模式预览的过程
String strJpgFilePathName = fileDir + inputFileNamePrefix + ".jpg";
// 将tif转换为jpg，返回转换后的文件路径、文件名的list
@ -92,7 +98,7 @@ public class TiffFilePreviewImpl implements FilePreview {
// 将返回页面的图片url的list对象
List<String> listImageUrls = new ArrayList<>();
// 循环，拼装url的list对象
for(String strJpg : listPic2Jpg){
for (String strJpg : listPic2Jpg) {
listImageUrls.add(baseUrl + strJpg);
}
@ -101,8 +107,8 @@ public class TiffFilePreviewImpl implements FilePreview {
}
// 转换后的tif没用了，可以删掉了
if(fileTiff.exists()){
fileTiff.delete();
if (fileTiff.exists() && !fileTiff.delete()) {
logger.error("{} 清理失败", strLocalTif);
}
return PICTURE_FILE_PREVIEW_PAGE;