本篇内容主要讲解“Android怎么实现excel/pdf/word/odt/图片相互转换”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Android怎么实现excel/pdf/word/odt/图片相互转换”吧!
实践过程
pdf转excel
public static long pdfToExcel(String inFile, String outFile) throws Exception {
if (!com.yrnet.transfer.business.transfer.file.License.getPdfLicense()) {
return 0;
}
try {
long old = System.currentTimeMillis();
Document doc = new Document(inFile);
ExcelSaveOptions options = new ExcelSaveOptions();
options.setFormat(ExcelSaveOptions.ExcelFormat.XLSX);
doc.save(outFile, options);
Out.print(inFile, outFile, System.currentTimeMillis(), old);
return new File(outFile).length();
}catch (Exception e) {
e.printStackTrace();
throw new Exception(e.getMessage());
}
}excel转pdf
public static long excelToPdf(String inFile, String outFile) throws Exception {
if (!com.yrnet.transfer.business.transfer.file.License.getExcelLicense()) {
return 0;
}
try {
long old = System.currentTimeMillis();
File pdfFile = new File(outFile);
Workbook wb = new Workbook(inFile);
PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();
pdfSaveOptions.setOnePagePerSheet(true);
FileOutputStream fileOS = new FileOutputStream(pdfFile);
wb.save(fileOS, SaveFormat.PDF);
fileOS.close();
long now = System.currentTimeMillis();
Out.print(inFile, outFile, now, old);
return pdfFile.length();
}catch (Exception e) {
e.printStackTrace();
throw new Exception(e.getMessage());
}
}ppt转pdf
public static long pptToPdf(String inFile, String outFile) throws Exception {
if (!com.yrnet.transfer.business.transfer.file.License.getPptLicense()) {
return 0;
}
try {
long old = System.currentTimeMillis();
File pdfFile = new File(outFile);
FileOutputStream os = new FileOutputStream(pdfFile);
Presentation pres = new Presentation(inFile);
pres.save(os, com.aspose.slides.SaveFormat.Pdf);
os.close();
long now = System.currentTimeMillis();
Out.print(inFile, outFile, now, old);
return pdfFile.length();
} catch (Exception e) {
e.printStackTrace();
throw new Exception(e.getMessage());
}
}pdf转ppt
public static long pdfToPpt(String inFile, String outFile) {
if (!com.yrnet.transfer.business.transfer.file.License.getPdfLicense()) {
return 0;
}
long old = System.currentTimeMillis();
Document pdfDocument = new Document(inFile);
PptxSaveOptions pptxOptions = new PptxSaveOptions();
pptxOptions.setExtractOcrSublayerOnly(true);
pdfDocument.save(outFile, pptxOptions);
long now = System.currentTimeMillis();
Out.print(inFile, outFile, now, old);
return new File(outFile).length();
}pdf转word
public static long pdfToDoc(String inFile, String outFile) {
if (!com.yrnet.transfer.business.transfer.file.License.getPdfLicense()) {
return 0;
}
log.info("开始转换...");
long old = System.currentTimeMillis();
Document pdfDocument = new Document(inFile);
DocSaveOptions saveOptions = new DocSaveOptions();
/** 或者DocSaveOptions.DocFormat.DocX*/
saveOptions.setFormat(DocSaveOptions.DocFormat.Doc);
pdfDocument.save(outFile, saveOptions);
long now = System.currentTimeMillis();
Out.print(inFile, outFile, now, old);
log.info("转换结束...");
return new File(outFile).length();
}word转pdf
public static long wordToPdf(String inFile, String outFile) throws Exception {
if (!com.yrnet.transfer.business.transfer.file.License.getWordLicense()) {
return 0;
}
try {
long old = System.currentTimeMillis();
File file = new File(outFile);
FileOutputStream os = new FileOutputStream(file);
Document doc = new Document(inFile);
Document tmp = new Document();
tmp.removeAllChildren();
tmp.appendDocument(doc, ImportFormatMode.USE_DESTINATION_STYLES);
System.out.println("开始解析word文档" + inFile);
doc.save(os, SaveFormat.PDF);
long now = System.currentTimeMillis();
log.info("target file size:{}",file.length());
os.close();
Out.print(inFile, outFile, now, old);
return file.length();
} catch (Exception e) {
log.error(inFile + "转换失败，请重试",e);
throw new Exception(e.getMessage());
}
}excel转图片
public static long excelToPic(String inFile, String outFile) throws Exception {
if (!com.yrnet.transfer.business.transfer.file.License.getExcelLicense()) {
return 0;
}
try {
long old = System.currentTimeMillis();
Workbook wb = new Workbook(inFile);
Worksheet sheet = wb.getWorksheets().get(0);
ImageOrPrintOptions imgOptions = new ImageOrPrintOptions();
imgOptions.setImageFormat(ImageFormat.getPng());
imgOptions.setCellAutoFit(true);
imgOptions.setOnePagePerSheet(true);
SheetRender render = new SheetRender(sheet, imgOptions);
render.toImage(0, outFile);
long now = System.currentTimeMillis();
Out.print(inFile, outFile, now, old);
return new File(outFile).length();
}catch (Exception e) {
e.printStackTrace();
throw new Exception(e.getMessage());
}
}pdf转图片
public static long pdfToPng(String inFile, List<String> outFile) throws Exception {
long size = 0;
if (!com.yrnet.transfer.business.transfer.file.License.getPdfLicense()) {
return size;
}
try {
long old = System.currentTimeMillis();
Document pdfDocument = new Document(inFile);
Resolution resolution = new Resolution(960);
JpegDevice jpegDevice = new JpegDevice(resolution);
for (int index=1;index<=pdfDocument.getPages().size();index++) {
String path = inFile.substring(0,inFile.lastIndexOf(".")) + "_"+index+".png";
File file = new File(path);
size += file.length();
FileOutputStream fileOs = new FileOutputStream(file);
jpegDevice.process(pdfDocument.getPages().get_Item(index), fileOs);
outFile.add(path);
fileOs.close();
long now = System.currentTimeMillis();
Out.print(inFile, path, now, old);
}
return size;
}catch (Exception e){
log.error(e.getMessage(),e);
throw new Exception(e.getMessage());
}
}odt转pdf
public static long pdfToPng(String inFile, List<String> outFile) throws Exception {
long size = 0;
if (!com.yrnet.transfer.business.transfer.file.License.getPdfLicense()) {
return size;
}
try {
long old = System.currentTimeMillis();
Document pdfDocument = new Document(inFile);
Resolution resolution = new Resolution(960);
JpegDevice jpegDevice = new JpegDevice(resolution);
for (int index=1;index<=pdfDocument.getPages().size();index++) {
String path = inFile.substring(0,inFile.lastIndexOf(".")) + "_"+index+".png";
File file = new File(path);
size += file.length();
FileOutputStream fileOs = new FileOutputStream(file);
jpegDevice.process(pdfDocument.getPages().get_Item(index), fileOs);
outFile.add(path);
fileOs.close();
long now = System.currentTimeMillis();
Out.print(inFile, path, now, old);
}
return size;
}catch (Exception e){
log.error(e.getMessage(),e);
throw new Exception(e.getMessage());
}
}