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JAVA读取WORD,EXCEL,POWERPOINT,PDF文件的方法

    博客分类:
  • java
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  OFFICE文档使用POI控件,PDF可以使用PDFBOX0.7.3控件,完全支持中文,用XPDF也行,不过感觉PDFBOX比较好,而且作者也在更新。水平有限,万望各位指正
              WORD:
              import org.apache.lucene.document.Document;
              import org.apache.lucene.document.Field;
              import org.apache.poi.hwpf.extractor.WordExtractor;
              import java.io.File;
              import java.io.InputStream;
              import java.io.FileInputStream;
              import com.search.code.Index;
              public Document getDocument(Index index, String url, String title, InputStream is) throws DocCenterException {
               String bodyText = null;
              try {
              WordExtractor ex = new WordExtractor(is);//is是WORD文件的InputStream
              bodyText = ex.getText();
              if(!bodyText.equals("")){
              index.AddIndex(url, title, bodyText);
              }
              }catch (DocCenterException e) {
              throw new DocCenterException("无法从该Mocriosoft Word文档中提取内容", e);
              }catch(Exception e){
              e.printStackTrace();
              }
              }
              return null;
              }
              Excel:
              import org.apache.lucene.document.Document;
              import org.apache.lucene.document.Field;
              import org.apache.poi.hwpf.extractor.WordExtractor;
              import org.apache.poi.hssf.usermodel.HSSFWorkbook;
              import org.apache.poi.hssf.usermodel.HSSFSheet;
              import org.apache.poi.hssf.usermodel.HSSFRow;
              import org.apache.poi.hssf.usermodel.HSSFCell;
              import java.io.File;
              import java.io.InputStream;
              import java.io.FileInputStream;
              import com.search.code.Index;
              public Document getDocument(Index index, String url, String title, InputStream is) throws DocCenterException {
              StringBuffer content = new StringBuffer();
              try{ HSSFWorkbook workbook = new HSSFWorkbook(is);//创建对Excel工作簿文件的引用
           
              for (int numSheets = 0; numSheets < workbook.getNumberOfSheets(); numSheets++) {
              if (null != workbook.getSheetAt(numSheets)) {
              HSSFSheet aSheet = workbook.getSheetAt(numSheets);//获得一个sheet
              for (int rowNumOfSheet = 0; rowNumOfSheet <= aSheet.getLastRowNum(); rowNumOfSheet++) {
              if (null != aSheet.getRow(rowNumOfSheet)) {
              HSSFRow aRow = aSheet.getRow(rowNumOfSheet); //获得一个行
              for (short cellNumOfRow = 0; cellNumOfRow <= aRow.getLastCellNum(); cellNumOfRow++) {
              if (null != aRow.getCell(cellNumOfRow)) {
              HSSFCell aCell = aRow.getCell(cellNumOfRow);//获得列值
              content.append(aCell.getStringCellValue());
              }
              }
              }
              }
              }
              }
              if(!content.equals("")){
              index.AddIndex(url, title, content.toString());
              }
              }catch (DocCenterException e) {
               throw new DocCenterException("无法从该Mocriosoft Word文档中提取内容", e);
              }catch(Exception e) {
              System.out.println("已运行xlRead() : " + e );
              }
              return null;
              }
              PowerPoint:
              import java.io.InputStream;
              import org.apache.lucene.document.Document;
              import org.apache.poi.hslf.HSLFSlideShow;
              import org.apache.poi.hslf.model.TextRun;
              import org.apache.poi.hslf.model.Slide;
              import org.apache.poi.hslf.usermodel.SlideShow;
              public Document getDocument(Index index, String url, String title, InputStream is)
              throws DocCenterException {
              StringBuffer content = new StringBuffer("");
              try{ SlideShow ss = new SlideShow(new HSLFSlideShow(is));//is 为文件的InputStream,建立SlideShow
           
              Slide[] slides = ss.getSlides();//获得每一张幻灯片
              for(int i=0;i<slides.length;i++){
              TextRun[] t = slides[i].getTextRuns();//为了取得幻灯片的文字内容,建立TextRun
              for(int j=0;j<t.length;j++){
              content.append(t[j].getText());//这里会将文字内容加到content中去
              }
              content.append(slides[i].getTitle());
              }
              index.AddIndex(url, title, content.toString());
              }catch(Exception ex){
              System.out.println(ex.toString());
              }
              return null;
              }
              PDF:
              import java.io.InputStream;
              import java.io.IOException;
              import org.apache.lucene.document.Document;
              import org.pdfbox.cos.COSDocument;
              import org.pdfbox.pdfparser.PDFParser;
              import org.pdfbox.pdmodel.PDDocument;
              import org.pdfbox.pdmodel.PDDocumentInformation;
              import org.pdfbox.util.PDFTextStripper;
              import com.search.code.Index;
              public Document getDocument(Index index, String url, String title, InputStream is)throws DocCenterException {
              COSDocument cosDoc = null;
              try {
              cosDoc = parseDocument(is);
              } catch (IOException e) {
              closeCOSDocument(cosDoc);
              throw new DocCenterException("无法处理该PDF文档", e);
              }
              if (cosDoc.isEncrypted()) {
              if (cosDoc != null)
              closeCOSDocument(cosDoc);
              throw new DocCenterException("该PDF文档是加密文档,无法处理");
              }
              String docText = null;
              try {
              PDFTextStripper stripper = new PDFTextStripper();
              docText = stripper.getText(new PDDocument(cosDoc));
              } catch (IOException e) {
              closeCOSDocument(cosDoc);
              throw new DocCenterException("无法处理该PDF文档", e);
              }
               PDDocument pdDoc = null;
              try {  pdDoc = new PDDocument(cosDoc);
           
              PDDocumentInformation docInfo = pdDoc.getDocumentInformation();
              if(docInfo.getTitle()!=null && !docInfo.getTitle().equals("")){
              title = docInfo.getTitle();
              }
               } catch (Exception e) {
              closeCOSDocument(cosDoc);
              closePDDocument(pdDoc);
              System.err.println("无法取得该PDF文档的元数据" + e.getMessage());
              } finally {
              closeCOSDocument(cosDoc);
              closePDDocument(pdDoc);
              }
              return null;
              }
              private static COSDocument parseDocument(InputStream is) throws IOException {
              PDFParser parser = new PDFParser(is);
              parser.parse();
              return parser.getDocument();
              }
              private void closeCOSDocument(COSDocument cosDoc) {
              if (cosDoc != null) {
              try {
              cosDoc.close();
              } catch (IOException e) {
              }
              }
              }
              private void closePDDocument(PDDocument pdDoc) {
              if (pdDoc != null) {
              try {
              pdDoc.close();
              } catch (IOException e) {
              }
              }
              }
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