web开发总结----word的写入、读取

以下是Java对几种文本文件内容读取代码。其中，OFFICE文档（WORD,EXCEL）使用了POI控件，PDF使用了PDFBOX控件。

 点击这里查看相关控件的下载地址和配置方法。

 

 

  WORD

package textReader;
 import java.io.*;
 import org.apache.poi.hwpf.extractor.WordExtractor;

 public class WordReader {
     public WordReader(){
    }
     /**
     * @param filePath 文件路径
     * @return 读出的Word的内容
     */
     public String getTextFromWord(String filePath){
         String result = null;
         File file = new File(filePath);
         try{
             FileInputStream fis = new FileInputStream(file);
             WordExtractor wordExtractor = new WordExtractor(fis);
            result = wordExtractor.getText();
         }catch(FileNotFoundException e){
            e.printStackTrace();
         }catch(IOException e){
            e.printStackTrace();
        };
         return result;
    }
 }

  EXCEL

package textReader;
 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.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;


 public class ExcelReader {

     @SuppressWarnings("deprecation")
     /**
     * @param filePath 文件路径
     * @return 读出的Excel的内容
     */
     public String getTextFromExcel(String filePath) {
         StringBuffer buff = new StringBuffer();
         try {
             //创建对Excel工作簿文件的引用
             HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(filePath));
             //创建对工作表的引用。
             for (int numSheets = 0; numSheets < wb.getNumberOfSheets(); numSheets++) {
                 if (null != wb.getSheetAt(numSheets)) {
                     HSSFSheet aSheet = wb.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 (int cellNumOfRow = 0; cellNumOfRow <= aRow.getLastCellNum(); cellNumOfRow++) {
                                 if (null != aRow.getCell(cellNumOfRow)) {
                                     HSSFCell aCell = aRow.getCell(cellNumOfRow);//获得列值
                                     switch(aCell.getCellType()){
                                         case HSSFCell.CELL_TYPE_FORMULA:
                                             break;
                                         case HSSFCell.CELL_TYPE_NUMERIC:
                                             buff.append(aCell.getNumericCellValue()).append('\t');break;
                                         case HSSFCell.CELL_TYPE_STRING:
                                             buff.append(aCell.getStringCellValue()).append('\t');break;
                                }
                        }
                    }
                     buff.append('\n');
                    }
                }
            }
        }
         } catch (FileNotFoundException e) {
            e.printStackTrace();
         } catch (IOException e) {
            e.printStackTrace();
        }
         return buff.toString();
    }
 }

 

  PDF  

package textReader;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;

 import org.pdfbox.pdfparser.PDFParser;
 import org.pdfbox.pdmodel.PDDocument;
 import org.pdfbox.util.PDFTextStripper;


 public class PdfReader {
     public PdfReader(){
    }
     /**
     * @param filePath 文件路径
     * @return 读出的pdf的内容
     */
     public String getTextFromPdf(String filePath) {
         String result = null;
         FileInputStream is = null;
         PDDocument document = null;
         try {
             is = new FileInputStream(filePath);
             PDFParser parser = new PDFParser(is);
            parser.parse();
            document = parser.getPDDocument();
             PDFTextStripper stripper = new PDFTextStripper();
            result = stripper.getText(document);
         } catch (FileNotFoundException e) {
            e.printStackTrace();
         } catch (IOException e) {
            e.printStackTrace();
         } finally {
             if (is != null) {
                 try {is.close();}catch(IOException e){e.printStackTrace();}
            }
             if (document != null) {
                 try{document.close();}catch (IOException e){e.printStackTrace();}
            }
        }
         return result;
    }

}

  TXT

package textReader;
 import java.io.*;


 public class TxtReader {
     public TxtReader() {
    }
     /**
     * @param filePath 文件路径
     * @return 读出的txt的内容
     */
     public String getTextFromTxt(String filePath) throws Exception {

         FileReader fr = new FileReader(filePath);
         BufferedReader br = new BufferedReader(fr);
         StringBuffer buff = new StringBuffer();
         String temp = null;
         while((temp = br.readLine()) != null){
             buff.append(temp + "\r\n");
        }
        br.close();
         return buff.toString();
    }
}

RTF

package textReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;

 import javax.swing.text.BadLocationException;
 import javax.swing.text.DefaultStyledDocument;
 import javax.swing.text.rtf.RTFEditorKit;


 public class RtfReader {
     public RtfReader(){
    }
     /**
     * @param filePath 文件路径
     * @return 读出的rtf的内容
     */
     public String getTextFromRtf(String filePath) {
         String result = null;
         File file = new File(filePath);
         try {
             DefaultStyledDocument styledDoc = new DefaultStyledDocument();
             InputStream is = new FileInputStream(file);
             new RTFEditorKit().read(is, styledDoc, 0);
             result = new String(styledDoc.getText(0,styledDoc.getLength()).getBytes("ISO8859_1"));
             //提取文本，读取中文需要使用ISO8859_1编码，否则会出现乱码
         } catch (IOException e) {
            e.printStackTrace();
         } catch (BadLocationException e) {
            e.printStackTrace();
        }
         return result;
    }

}

   HTML

package textReader;
 import java.io.*;

 public class HtmlReader {
     public HtmlReader() {
    }
     /**
     * @param filePath 文件路径
     * @return 获得html的全部内容
     */
     public String readHtml(String filePath) {
         BufferedReader br=null;
         StringBuffer sb = new  StringBuffer();
         try {
             br=new BufferedReader(new InputStreamReader(new FileInputStream(filePath),  "GB2312"));
             String temp=null;
             while((temp=br.readLine())!=null){
                sb.append(temp);
            }
         } catch (FileNotFoundException e) {
            e.printStackTrace();
         } catch (IOException e) {
            e.printStackTrace();
        }
         return sb.toString();
    }
     /**
     * @param filePath 文件路径
     * @return 获得的html文本内容
     */
     public String getTextFromHtml(String filePath) {
         //得到body标签中的内容
        String str= readHtml(filePath);
         StringBuffer buff = new StringBuffer();
         int maxindex = str.length() - 1;
         int begin = 0;
         int end;
         //截取>和<之间的内容
         while((begin = str.indexOf('>',begin)) < maxindex){
             end = str.indexOf('<',begin);
             if(end - begin > 1){
                buff.append(str.substring(++begin, end));
            }
             begin = end+1;
        };
         return buff.toString();
    }

}