import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;
import org.apache.poi.hslf.extractor.PowerPointExtractor;
import org.apache.poi.hssf.extractor.ExcelExtractor;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Paragraph;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.xslf.extractor.XSLFPowerPointExtractor;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xssf.extractor.XSSFExcelExtractor;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;

@SuppressWarnings("deprecation")
class poiTest 
{ 
 public static void main(String[] args) 
 { 
 	String content = readWord("C:\\Users\\Administrator\\Downloads\\高級日本語中間テスト2016年11月送印.doc");
 	content = readWord("C:/Users/Administrator/Downloads/Debate (1).pptx");
 	System.out.println(content);
 
 content = readWordDocx("C:/Users/Administrator/Downloads/Debate (1).pptx");
 //content = readWordDocx("C:/Users/Administrator/Desktop/HashMap/ddddddddddd.docx");
 System.out.println(content);
 
 content = getTextFromExcel("C:/Users/Administrator/Downloads/Debate (1).pptx");
 //content = getTextFromExcel("C:\\Users\\Administrator\\Downloads\\CommitFailTest.xls");
 System.out.println(content); 
 
 content = getTextFromExcel2007("C:/Users/Administrator/Downloads/Debate (1).pptx");
 //content = getTextFromExcel2007("C:\\Users\\Administrator\\Downloads\\圆图网络公司账目 (1).xlsx");
 System.out.println(content);
 
 content = readPdf("C:/Users/Administrator/Downloads/Debate (1).pptx");
 //content = readPdf("C:/Users/Administrator/Downloads/111111111111111111.pdf");
 System.out.println(content);
 
 content = getTextFromPPT2007("C:/Users/Administrator/Downloads/Debate (1).pptx");
 System.out.println(content);
 
 content = readFile("C:\\Users\\Administrator\\Downloads\\ecs_migration_list_cn-hangzhou-dg-a01_2018年10月16日.csv");
 System.out.println(content);
 
 }
 
 public static String readWord(String path) {
 	StringBuffer content = new StringBuffer("");// 文档内容
 	try {
	 	@SuppressWarnings("resource")
			HWPFDocument doc = new HWPFDocument(new FileInputStream(path));
	 	Range range = doc.getRange();
	 	int paragraphCount = range.numParagraphs();// 段落
	 	for (int i = 0; i < paragraphCount; i++) {// 遍历段落读取数据
	 		Paragraph pp = range.getParagraph(i);
	 		content.append(pp.text());
	 	}
 	} catch (Exception e) {
 		e.printStackTrace();
 	}
 	return content.toString().trim();
 }
 
 @SuppressWarnings("resource")
	public static String readWordDocx(String path){
 	File file = new File(path);
 	String str = "";
 	try {
 		FileInputStream fis = new FileInputStream(file);
 		XWPFDocument xdoc = new XWPFDocument(fis);
 		XWPFWordExtractor extractor = new XWPFWordExtractor(xdoc);
 		str = extractor.getText();
 		fis.close();
 	} catch (Exception e) {
 		 e.printStackTrace();
 	}
 	return str;
 }
 
 //直接读取Excel97-2003的全部内容 xls 
 public static String getTextFromExcel(String filePath){ 
 InputStream is = null; 
 HSSFWorkbook wb = null; 
 String text=""; 
 try { 
 is = new FileInputStream(filePath); 
 wb = new HSSFWorkbook(new POIFSFileSystem(is)); 
 ExcelExtractor extractor=new ExcelExtractor(wb); 
 extractor.setFormulasNotResults(false); 
 extractor.setIncludeSheetNames(true); 
 text=extractor.getText(); 
 extractor.close(); 
 } catch (FileNotFoundException e) { 
 System.out.println("没有找到指定路径"+filePath); 
 e.printStackTrace(); 
 } catch (IOException e) { 
 System.out.println("getTextFromExcel IO错误"); 
 e.printStackTrace(); 
 } 
 return text; 
 } 
 
 //读取Excel2007+的全部内容 xlsx 
 public static String getTextFromExcel2007(String filePath) { 
 InputStream is = null; 
 XSSFWorkbook workBook = null; 
 String text=""; 
 try { 
 is = new FileInputStream(filePath); 
 workBook = new XSSFWorkbook(is); 
 XSSFExcelExtractor extractor=new XSSFExcelExtractor(workBook); 
 text=extractor.getText(); 
 extractor.close(); 
 } catch (FileNotFoundException e) { 
 System.out.println("没有找到指定路径"+filePath); 
 e.printStackTrace(); 
 } catch (IOException e) { 
 System.out.println("getTextFromExcel2007 IO错误"); 
 e.printStackTrace(); 
 } 
 return text; 
 } 
 
 
 public static String readPdf(String path) {
 File pdfFile=new File(path);
 PDDocument document = null;
 String content = "";
 try
 {
 document=PDDocument.load(pdfFile);
 int pages = document.getNumberOfPages();
 // 读文本内容
 PDFTextStripper stripper=new PDFTextStripper();
 // 设置按顺序输出
 stripper.setSortByPosition(true);
 stripper.setStartPage(1);
 stripper.setEndPage(pages);
 content = stripper.getText(document);
 System.out.println(content); 
 }
 catch(Exception e)
 {
 System.out.println(e);
 }
 return content; 
 }
 

 public static String getTextFromPPT(String filePath) { 
 InputStream is = null; 
 PowerPointExtractor extractor = null; 
 String text=""; 
 try { 
 is = new FileInputStream(filePath); 
 extractor = new PowerPointExtractor(is); 
 text=extractor.getText(); 
 extractor.close(); 
 } catch (FileNotFoundException e) { 
 System.out.println("没有找到指定路径"+filePath); 
 e.printStackTrace(); 
 } catch (IOException e) { 
 System.out.println("getTextFromPPT IO错误"); 
 e.printStackTrace(); 
 } 
 return text; 
 } 
 //抽取幻灯片2007+全部内容 pptx 
 public static String getTextFromPPT2007(String filePath){ 
 InputStream is = null; 
 XMLSlideShow slide = null; 
 String text=""; 
 try { 
 is = new FileInputStream(filePath); 
 slide = new XMLSlideShow(is); 
 XSLFPowerPointExtractor extractor=new XSLFPowerPointExtractor(slide); 
 text=extractor.getText(); 
 extractor.close(); 
 } catch (FileNotFoundException e) { 
 System.out.println("没有找到指定路径"+filePath); 
 e.printStackTrace(); 
 } catch (IOException e) { 
 System.out.println("getTextFromPPT2007 IO错误"); 
 e.printStackTrace(); 
 } 
 return text; 
 } 
 

 /**
 * 获取文件格式
 * @param path
 * @return
 */
 public static String getFileEncode(String path) {
 String charset ="asci";
 byte[] first3Bytes = new byte[3];
 BufferedInputStream bis = null;
 try {
 boolean checked = false;
 bis = new BufferedInputStream(new FileInputStream(path));
 bis.mark(0);
 int read = bis.read(first3Bytes, 0, 3);
 if (read == -1)
 return charset;
 if (first3Bytes[0] == (byte) 0xFF && first3Bytes[1] == (byte) 0xFE) {
 charset = "Unicode";//UTF-16LE
 checked = true;
 } else if (first3Bytes[0] == (byte) 0xFE && first3Bytes[1] == (byte) 0xFF) {
 charset = "Unicode";//UTF-16BE
 checked = true;
 } else if (first3Bytes[0] == (byte) 0xEF && first3Bytes[1] == (byte) 0xBB && first3Bytes[2] == (byte) 0xBF) {
 charset = "UTF8";
 checked = true;
 }
 bis.reset();
 if (!checked) {
 int len = 0;
 int loc = 0;
 while ((read = bis.read()) != -1) {
 loc++;
 if (read >= 0xF0)
 break;
 if (0x80 <= read && read <= 0xBF) //单独出现BF以下的,也算是GBK
 break;
 if (0xC0 <= read && read <= 0xDF) {
 read = bis.read();
 if (0x80 <= read && read <= 0xBF) 
 //双字节 (0xC0 - 0xDF) (0x80 - 0xBF),也可能在GB编码内
 continue;
 else
 break;
 } else if (0xE0 <= read && read <= 0xEF) { //也有可能出错,但是几率较小
 read = bis.read();
 if (0x80 <= read && read <= 0xBF) {
 read = bis.read();
 if (0x80 <= read && read <= 0xBF) {
 charset = "UTF-8";
 break;
 } else
 break;
 } else
 break;
 }
 }
 //TextLogger.getLogger().info(loc + " " + Integer.toHexString(read));
 }
 } catch (Exception e) {
 e.printStackTrace();
 } finally {
 if (bis != null) {
 try {
 bis.close();
 } catch (IOException ex) {
 }
 }
 }
 return charset;
 }
 
 /**
 * 通过路径获取文件的内容,这个方法因为用到了字符串作为载体,为了正确读取文件(不乱码),只能读取文本文件,安全方法
 * @param path
 * @return txt
 */
 public static String readFile(String path){
 String data = null;
 // 判断文件是否存在
 File file = new File(path);
 if(!file.exists()){
 return data;
 }
 // 获取文件编码格式
 String code = getFileEncode(path);
 InputStreamReader isr = null;
 try{
 // 根据编码格式解析文件
 if("asci".equals(code)){
 // 这里采用GBK编码,而不用环境编码格式,因为环境默认编码不等于操作系统编码 
 // code = System.getProperty("file.encoding");
 code = "GBK";
 }
 isr = new InputStreamReader(new FileInputStream(file),code);
 // 读取文件内容
 int length = -1 ;
 char[] buffer = new char[1024];
 StringBuffer sb = new StringBuffer();
 while((length = isr.read(buffer, 0, 1024) ) != -1){
 sb.append(buffer,0,length);
 }
 data = new String(sb);
 }catch(Exception e){
 e.printStackTrace();
 }finally{
 try {
 if(isr != null){
 isr.close();
 }
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
 return data;
 }
 
}