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();
- }
- }
- 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();
- }
- }