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JAVA读取WORD,EXCEL,PDF,TXT,RTF,HTML文件文本内容

(2010-11-22 18:16:36)
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分类: java

JAVA读取WORD,EXCEL,PDF,TXT,RTF,HTML文件文本内容的方法示例 - [小整理箱]

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

Java代码
package textReader;   
import java.io.*;   
import org.apache.poi.hwpf.extractor.WordExtractor;   
  
public class WordReader {   
    public WordReader(){   
     
      
    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;   
     
 
package textReader;
import java.io.*;
import org.apache.poi.hwpf.extractor.WordExtractor;
public class WordReader {
public WordReader(){
}

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

Java代码
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")   
      
    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();   
                 
 
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")

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  

Java代码
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(){   
     
      
    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;   
     
  
 
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(){
}

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

Java代码
package textReader;   
import java.io.*;   
  
  
public class TxtReader {   
    public TxtReader() {           
     
      
    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();        
     
 
package textReader;
import java.io.*;
public class TxtReader {
public TxtReader() {
}

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

Java代码
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(){   
     
      
    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;   
     
       
 
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(){
}

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

Java代码
package textReader;   
import java.io.*;   
  
public class HtmlReader {   
    public HtmlReader() {   
     
      
    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();   
     
      
    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();   
     
  
 
package textReader;
import java.io.*;
public class HtmlReader {
public HtmlReader() {
}

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();
}

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();
}
}
 

  注意 :若使用WPS编辑相关文档,会有错误提示,应避免。

  错误文本提示如下:

WORD

Your document seemed to be mostly unicode, but the section definition was in bytes! Trying anyway, but things may well go wrong!

EXCEL

java.lang.RuntimeException: Expected an EXTERNSHEET record but got (org.apache.poi.hssf.record.SSTRecord)
    at org.apache.poi.hssf.model.LinkTable.readExtSheetRecord(LinkTable.java:187)
    at org.apache.poi.hssf.model.LinkTable.<init>(LinkTable.java:163)
    at org.apache.poi.hssf.model.Workbook.createWorkbook(Workbook.java:199)
    at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:273)
    at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:196)
    at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:312)
    at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:293)
    at textReader.ExcelReader.getTextFromExcel(ExcelReader.java:23)
    at DocumentInfo.getContent(DocumentInfo.java:86)
    at MainFunction.main(MainFunction.java:19)

RTF

java.io.IOException: Too many close-groups in RTF text
    at javax.swing.text.rtf.RTFParser.write(Unknown Source)
    at javax.swing.text.rtf.RTFParser.writeSpecial(Unknown Source)
    at javax.swing.text.rtf.AbstractFilter.write(Unknown Source)
    at javax.swing.text.rtf.AbstractFilter.readFromStream(Unknown Source)
    at javax.swing.text.rtf.RTFEditorKit.read(Unknown Source)
    at textReader.RtfReader.getTextFromRtf(RtfReader.java:25)
    at DocumentInfo.getContent(DocumentInfo.java:74)
    at MainFunction.main(MainFunction.java:19)

BODY { FONT-FAMILY:Tahoma; FONT-SIZE:10pt } P { FONT-FAMILY:Tahoma; FONT-SIZE:10pt } DIV { FONT-FAMILY:Tahoma; FONT-SIZE:10pt } TD { FONT-FAMILY:Tahoma; FONT-SIZE:10pt }   顺便说一下,这里为什么会在write出错呢?因为 level是根据{和}来进行自增和自减的,当括号不匹配的时候就会提示该错误。 wps编辑rtf文件在格式上出了问题,{和}不匹配。 但用word或写字板下新建文件,编辑后另存为rtf文件(wps下不支持),用记事本打开可以发现添加了很多格式说明,但是{和}是匹配的,这样才不会报错。下面是具体说明:

0

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