java读取doc、docx、txt文件源码

package com.tongdainfo.common.parser; import java.io.File; import java.io.InputStream; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Properties; /** * 功能描述：文本解析类 * @author zhao * */ public class ParserUtil { private static String charset = "GBK"; private static Map<String,IParser> PARSER_MAP=new HashMap(); private static String CONFIG="com/tongdainfo/common/parser/parser.properties"; static { initParaserMap(); } public static void initParaserMap() { Properties props = new Properties(); InputStream in= null; try{ in= Thread.currentThread().getContextClassLoader().getResourceAsStream(CONFIG); props.load(in);} catch(Exception e){ e.printStackTrace(); } finally{ if(in!=null ){ try {in.close(); } catch (Exception e) {} } } Map<String,IParser> paraserMap=new HashMap(); paraserMap.put(null, new IParser(){ public String[] getFileTypes() { return null; } public String readText(File file, String charset) throws Exception { return ""; }}); if(props.isEmpty()) return ; Iterator it= props.keySet().iterator(); while(it.hasNext()){ String key=(String) it.next(); String clazzStr=(String)props.get(key); try { Class clazzObj =Class.forName(clazzStr); IParser parser= (IParser)clazzObj.newInstance(); paraserMap.put(key.toLowerCase(), parser); } catch (Exception e) { e.printStackTrace(); } } ParserUtil.PARSER_MAP=paraserMap; } private static String parserText (File file ,String extendsName,String encoding) throws Exception{ IParser parser =PARSER_MAP.get(extendsName); if(parser==null) return ""; String text=parser.readText(file,encoding); return text; } public static String readText(File file,String fileName,String charset)throws Exception{ String extName = getFileType(fileName); return parserText (file ,extName,charset); } public static String readText(File file,String fileName)throws Exception { String extName = getFileType(fileName); return parserText (file ,extName,charset); } public static String readText(String filePath,String charset)throws Exception{ String extName = getFileType(filePath); File file=new File(filePath); return parserText (file ,extName,charset); } public static String readText(String filePath) throws Exception { String extName = getFileType(filePath); File file=new File(filePath); return parserText (file ,extName,charset); } /** * 功能描述：获取文件类型 * @param path * @return */ private static String getFileType(String path) { path = path.trim(); int i = path.lastIndexOf("."); if (i != -1) { String type = path.substring(i + 1, path.length()).toLowerCase(); return type; } else { return null; } } /** * 判断文件是否可以接受 * @param file * @return */ public static boolean isAcceptability(File file) { String type=getFileType(file.getName()); type=type.toLowerCase(); return PARSER_MAP.containsKey(type); } public static boolean isAcceptability(String filePath) { String type=getFileType(filePath); type=type.toLowerCase(); return PARSER_MAP.containsKey(type); } /** private String standardize(String str) { str = str.replaceAll("[\\r\\n]", ""); str = str.replaceAll("维普资讯", ""); str = str.replaceAll("http://www.cqvip.com", ""); return str; } * @throws Exception */ public static void main(String[] s) throws Exception{ File file=new File("D:/"); File[] files=file.listFiles(); File temp=null; for(int i=0;i<files.length;i++){ temp=files[i]; if(temp.isDirectory()) continue; System.out.println("file："+temp.getAbsolutePath()); System.out.println("内容："+ParserUtil.readText(temp.getAbsolutePath())); } } }