在Java中，利用poi处理pdf、doc、docx文档

一：处理PDF文档

　　处理PDF文档需要引用pdfbox-app-1.8.7.jar的jar包（ps：版本应该没有具体要求）。

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.util.PDFTextStripper;

private static String getPDFText(File file){
        PDDocument document;
        String text = "";
        try {
            document = PDDocument.load(file);
            PDFTextStripper stripper = new PDFTextStripper();
            text = stripper.getText(document);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return text;
    }

二：处理doc文档

　　处理doc文档需要引入poi-3.10.1-20140818.jar和poi-scratchpad-3.10.1-20140818.jar

import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Range;
 
public String getDocContent(File docFile){     
        FileInputStream docFis;
        String text = null;
        try {
            docFis = new FileInputStream(docFile);
            HWPFDocument doc = new HWPFDocument(docFis);
            Range rang = doc.getRange();
            text = rang.text();
            docFis.close();
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return text;     
    } 

三：处理docx文档

　　处理docx文档需要引入poi-ooxml-3.10.1-20140818.jar和poi-ooxml-schemas-3.10.1-20140818.jar以及xmlbeans-2.3.0.jar（ps:使用的XWPFWordExtractor()中用到了xmlbeans-2.3.0.jar中的类。）

import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;

public String getDocxContent(File docxFile){     
        FileInputStream docxFis;
        String text = null;
        try {
            docxFis = new FileInputStream(docxFile);
            XWPFDocument docx = new XWPFDocument(docxFis);
            XWPFWordExtractor docxExtractor = new XWPFWordExtractor(docx);
            text = docxExtractor.getText();
            docxFis.close();
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return text;     
    }