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抽象通用的预览异常接口实现

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chenkailing
2020-12-27 14:47:28 +08:00
committed by kl
parent 1f1970232b
commit 9c83860e1b
10 changed files with 68 additions and 69 deletions
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15
server/src/main/java/cn/keking/service/impl/CadFilePreviewImpl.java
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@@ -25,9 +25,11 @@ public class CadFilePreviewImpl implements FilePreview {
private static final String FILE_DIR = ConfigConstants.getFileDir();
private final FileHandlerService fileHandlerService;
private final OtherFilePreviewImpl otherFilePreview;
public CadFilePreviewImpl(FileHandlerService fileHandlerService) {
public CadFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.otherFilePreview = otherFilePreview;
}
@Override
@@ -35,7 +37,6 @@ public class CadFilePreviewImpl implements FilePreview {
// 预览Type，参数传了就取参数的，没传取系统默认
String officePreviewType = model.asMap().get("officePreviewType") == null ? ConfigConstants.getOfficePreviewType() : model.asMap().get("officePreviewType").toString();
String baseUrl = BaseUrlFilter.getBaseUrl();
String suffix = fileAttribute.getSuffix();
String fileName = fileAttribute.getName();
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
String outFilePath = FILE_DIR + pdfName;
@@ -44,17 +45,13 @@ public class CadFilePreviewImpl implements FilePreview {
String filePath;
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (response.isFailure()) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
filePath = response.getContent();
if (StringUtils.hasText(outFilePath)) {
boolean convertResult = fileHandlerService.cadToPdf(filePath, outFilePath);
if (!convertResult) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", "cad文件转换异常，请联系管理员");
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, "cad文件转换异常，请联系管理员");
}
if (ConfigConstants.isCacheEnabled()) {
// 加入缓存
@@ -63,7 +60,7 @@ public class CadFilePreviewImpl implements FilePreview {
}
}
if (baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE);
return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE,otherFilePreview);
}
model.addAttribute("pdfUrl", pdfName);
return "pdf";

12
server/src/main/java/cn/keking/service/impl/CompressFilePreviewImpl.java
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@@ -20,10 +20,12 @@ public class CompressFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService;
private final CompressFileReader compressFileReader;
private final OtherFilePreviewImpl otherFilePreview;
public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader) {
public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.compressFileReader = compressFileReader;
this.otherFilePreview = otherFilePreview;
}
@Override
@@ -35,9 +37,7 @@ public class CompressFilePreviewImpl implements FilePreview {
if (!StringUtils.hasText(fileHandlerService.getConvertedFile(fileName)) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
String filePath = response.getContent();
if ("zip".equalsIgnoreCase(suffix) || "jar".equalsIgnoreCase(suffix) || "gzip".equalsIgnoreCase(suffix)) {
@@ -57,9 +57,7 @@ public class CompressFilePreviewImpl implements FilePreview {
model.addAttribute("fileTree", fileTree);
return "compress";
} else {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", "压缩文件类型不受支持，尝试在压缩的时候选择RAR4格式");
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, "压缩文件类型不受支持，尝试在压缩的时候选择RAR4格式");
}
}
}

10
server/src/main/java/cn/keking/service/impl/MediaFilePreviewImpl.java
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@@ -19,9 +19,11 @@ import org.springframework.ui.Model;
public class MediaFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService;
private final OtherFilePreviewImpl otherFilePreview;
public MediaFilePreviewImpl(FileHandlerService fileHandlerService) {
public MediaFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.otherFilePreview = otherFilePreview;
}
@Override
@@ -29,10 +31,8 @@ public class MediaFilePreviewImpl implements FilePreview {
// 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, fileAttribute.getName());
if (!response.isSuccess()) {
model.addAttribute("fileType", fileAttribute.getSuffix());
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
if (response.isFailure()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
} else {
model.addAttribute("mediaUrl", BaseUrlFilter.getBaseUrl() + fileHandlerService.getRelativePath(response.getContent()));
}

20
server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java
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@@ -27,10 +27,12 @@ public class OfficeFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService;
private final OfficeToPdfService officeToPdfService;
private final OtherFilePreviewImpl otherFilePreview;
public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, OfficeToPdfService officeToPdfService) {
public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, OfficeToPdfService officeToPdfService, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.officeToPdfService = officeToPdfService;
this.otherFilePreview = otherFilePreview;
}
@Override
@@ -38,8 +40,8 @@ public class OfficeFilePreviewImpl implements FilePreview {
// 预览Type，参数传了就取参数的，没传取系统默认
String officePreviewType = fileAttribute.getOfficePreviewType();
String baseUrl = BaseUrlFilter.getBaseUrl();
String suffix=fileAttribute.getSuffix();
String fileName=fileAttribute.getName();
String suffix = fileAttribute.getSuffix();
String fileName = fileAttribute.getName();
boolean isHtml = suffix.equalsIgnoreCase("xls") || suffix.equalsIgnoreCase("xlsx");
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + (isHtml ? "html" : "pdf");
String outFilePath = FILE_DIR + pdfName;
@@ -48,9 +50,7 @@ public class OfficeFilePreviewImpl implements FilePreview {
String filePath;
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (response.isFailure()) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
filePath = response.getContent();
if (StringUtils.hasText(outFilePath)) {
@@ -66,18 +66,16 @@ public class OfficeFilePreviewImpl implements FilePreview {
}
}
if (!isHtml && baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE);
return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE, otherFilePreview);
}
model.addAttribute("pdfUrl", pdfName);
return isHtml ? "html" : "pdf";
}
static String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String baseUrl, String pdfName, String outFilePath, FileHandlerService fileHandlerService, String officePreviewTypeImage) {
static String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String baseUrl, String pdfName, String outFilePath, FileHandlerService fileHandlerService, String officePreviewTypeImage, OtherFilePreviewImpl otherFilePreview) {
List<String> imageUrls = fileHandlerService.pdf2jpg(outFilePath, pdfName, baseUrl);
if (imageUrls == null || imageUrls.size() < 1) {
model.addAttribute("msg", "office转图片异常，请联系管理员");
model.addAttribute("fileType",fileAttribute.getSuffix());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, "office转图片异常，请联系管理员");
}
model.addAttribute("imgurls", imageUrls);
model.addAttribute("currentUrl", imageUrls.get(0));

18
server/src/main/java/cn/keking/service/impl/OtherFilePreviewImpl.java
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@@ -11,10 +11,22 @@ import org.springframework.ui.Model;
*/
@Service
public class OtherFilePreviewImpl implements FilePreview {
public static final String NOT_SUPPORTED_FILE_PAGE = "fileNotSupported";
@Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
model.addAttribute("fileType",fileAttribute.getSuffix());
model.addAttribute("msg", "系统还不支持该格式文件的在线预览");
return "fileNotSupported";
return this.notSupportedFile(model,fileAttribute,"系统还不支持该格式文件的在线预览");
}
/**
* 通用的预览失败，导向到不支持的文件响应页面
*
* @return 页面
*/
public String notSupportedFile(Model model, FileAttribute fileAttribute, String errMsg) {
model.addAttribute("fileType", fileAttribute.getSuffix());
model.addAttribute("msg", errMsg);
return NOT_SUPPORTED_FILE_PAGE;
}
}

19
server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java
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@@ -20,16 +20,17 @@ import java.util.List;
public class PdfFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService;
private final OtherFilePreviewImpl otherFilePreview;
private static final String FILE_DIR = ConfigConstants.getFileDir();
public PdfFilePreviewImpl(FileHandlerService fileHandlerService) {
public PdfFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.otherFilePreview = otherFilePreview;
}
@Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
String suffix=fileAttribute.getSuffix();
String fileName=fileAttribute.getName();
String fileName = fileAttribute.getName();
String officePreviewType = fileAttribute.getOfficePreviewType();
String baseUrl = BaseUrlFilter.getBaseUrl();
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
@@ -39,9 +40,7 @@ public class PdfFilePreviewImpl implements FilePreview {
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
outFilePath = response.getContent();
if (ConfigConstants.isCacheEnabled()) {
@@ -51,9 +50,7 @@ public class PdfFilePreviewImpl implements FilePreview {
}
List<String> imageUrls = fileHandlerService.pdf2jpg(outFilePath, pdfName, baseUrl);
if (imageUrls == null || imageUrls.size() < 1) {
model.addAttribute("msg", "pdf转图片异常，请联系管理员");
model.addAttribute("fileType",fileAttribute.getSuffix());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, "pdf转图片异常，请联系管理员");
}
model.addAttribute("imgurls", imageUrls);
model.addAttribute("currentUrl", imageUrls.get(0));
@@ -68,9 +65,7 @@ public class PdfFilePreviewImpl implements FilePreview {
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, pdfName);
if (response.isFailure()) {
model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
model.addAttribute("pdfUrl", fileHandlerService.getRelativePath(response.getContent()));
if (ConfigConstants.isCacheEnabled()) {

8
server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java
View File

@@ -19,9 +19,11 @@ import java.util.List;
public class PictureFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService;
private final OtherFilePreviewImpl otherFilePreview;
public PictureFilePreviewImpl(FileHandlerService fileHandlerService) {
public PictureFilePreviewImpl(FileHandlerService fileHandlerService, OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.otherFilePreview = otherFilePreview;
}
@Override
@@ -37,9 +39,7 @@ public class PictureFilePreviewImpl implements FilePreview {
if (url != null && !url.toLowerCase().startsWith("http")) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (response.isFailure()) {
model.addAttribute("fileType", fileAttribute.getSuffix());
model.addAttribute("msg", response.getMsg());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
} else {
String file = fileHandlerService.getRelativePath(response.getContent());
imgUrls.clear();

14
server/src/main/java/cn/keking/service/impl/SimTextFilePreviewImpl.java
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@@ -23,23 +23,25 @@ public class SimTextFilePreviewImpl implements FilePreview {
public static final String TEXT_TYPE = "textType";
public static final String DEFAULT_TEXT_TYPE = "simText";
private final OtherFilePreviewImpl otherFilePreview;
public SimTextFilePreviewImpl(OtherFilePreviewImpl otherFilePreview) {
this.otherFilePreview = otherFilePreview;
}
@Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
String fileName = fileAttribute.getName();
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
model.addAttribute("msg", response.getMsg());
model.addAttribute("fileType", fileAttribute.getSuffix());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
try {
File originFile = new File(response.getContent());
String xmlString = FileUtils.readFileToString(originFile, StandardCharsets.UTF_8);
model.addAttribute("textData", Base64Utils.encodeToString(xmlString.getBytes()));
} catch (IOException e) {
model.addAttribute("msg", e.getLocalizedMessage());
model.addAttribute("fileType", fileAttribute.getSuffix());
return "fileNotSupported";
return otherFilePreview.notSupportedFile(model, fileAttribute, e.getLocalizedMessage());
}
if (!model.containsAttribute(TEXT_TYPE)) {
model.addAttribute(TEXT_TYPE, DEFAULT_TEXT_TYPE);

1
server/src/main/java/cn/keking/service/impl/XmlFilePreviewImpl.java
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@@ -20,7 +20,6 @@ public class XmlFilePreviewImpl implements FilePreview {
this.simTextFilePreview = simTextFilePreview;
}
@Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
model.addAttribute(TEXT_TYPE,"xml");