JAVA读取WORD,EXCEL,PDF,TXT,RTF,HTML文件文本内容的方法示例

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。

[java] view
plaincopy

WORD

Java代码

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;

}

}

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

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")

/**

* @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();

}

}

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

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(){

}

/**

* @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;

}

}

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

Java代码

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();

}

}

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

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(){

}

/**

* @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;

}

}

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

Java代码

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();

}

}

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();

}

}

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。