使用Java基于数据流直接抽取word文本代码,Java代码库,德仔网

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【Java】使用Java基于数据流直接抽取word文本

作者:脚本爱好者 / 发布于2012/6/25/ 513

如下代码是直接基于数据流进行文本抽取，支持word97-word2003版本，之后的版本实际都是xml，抽取文本非常简单

<div>public class WordExtractor {
 
 public static StringBuilder logBytes = new StringBuilder();
 
 public static String bytesToString(byte[] ogiBytes, int start, int length, int fc)
 {
 StringBuilder content = new StringBuilder();
 byte[] bytes = new byte[length];
 System.arraycopy(ogiBytes, start, bytes, 0, length);
 if(fc == 0)
 {
 for(int i=0;i<bytes.length;i++)
 {
 if(i == bytes.length - 1)
 {
 return content.toString();
 }
 
 String a = Integer.toHexString(bytes[i+1] & 0xFF);
 String b = Integer.toHexString(bytes[i] & 0xFF);
 if(a.length() == 1)
 {
 a = "0"+ a;
 }
 
 if(b.length() == 1)
 {
 b = "0"+ b;
 }
 
 String hexStr = a + b;
 int ch = Integer.valueOf(hexStr, 16);
 content.append( (char)ch );
 i++;
 }
 }
 else
 {
 for(int i=0;i<bytes.length;i++)
 {
 int ch = bytes[i] & 0xFF;
 content.append( (char)ch );
 }
 }
 
 return content.toString();
 }
 
 public static void bytesToString(byte[] ogiBytes, StringBuilder content, int start, int length, int fc)
 {
 content.append( bytesToString(ogiBytes, start, length, fc) );
 }
 
 public static void printLogBytes(List<Byte> legaled) throws Exception
 {
 logBytes = new StringBuilder();
 
 logBytes.append(" ========================================================");
 for(int a=0;a<legaled.size();a++)
 {
 if(a % 16 == 0)
 {
 logBytes.append(" ");
 }
 logBytes.append(Integer.toHexString(legaled.get(a) & 0xFF) +" ");
 }
 logBytes.append(" ========================================================");
 
 FileUtil.writeAscFile("E:ytes.txt", logBytes.toString());
 }
 
 public static int getOneTable(byte[] ogiBytes, Stream stream, int dirSect1)
 {
 for(int i=0;i<8;i++)
 {
 int offsetEntry = (dirSect1 + 1)*512 + i*128;
 StringBuilder content = new StringBuilder();
 bytesToString(ogiBytes, content, offsetEntry, 64, 0);
 if(content.toString().indexOf("1Table") > -1)
 {
 return offsetEntry;
 }
 }
 
 return 0;
 }
 
 public static void main(String[] args) throws Exception
 {
 byte[] ogiBytes = FileUtil.readBinFile("D: oolsoletest est-old.doc");
 
 System.out.println("Total bytes: "+ ogiBytes.length);
 if(
 ogiBytes.length < 8 ||
 (ogiBytes[0] & 0xFF) != 208 ||
 (ogiBytes[1] & 0xFF) != 207 ||
 (ogiBytes[2] & 0xFF) != 17 ||
 (ogiBytes[3] & 0xFF) != 224 ||
 (ogiBytes[4] & 0xFF) != 161 ||
 (ogiBytes[5] & 0xFF) != 177 ||
 (ogiBytes[6] & 0xFF) != 26 ||
 (ogiBytes[7] & 0xFF) != 225
 ){
 System.out.println("Not the doc file!");
 return;
 }
 
 StringBuilder content = new StringBuilder();
 
 Stream stream = new Stream(ogiBytes);
 int[] offset = new int[1];
 
 offset[0] = 48;
 int dirSect1 = stream.getInteger(offset);
 int oneTable = getOneTable(ogiBytes, stream, dirSect1);
 
 offset[0] = oneTable + 116;
 int startSect = stream.getInteger(offset);
 int tableStream = (startSect + 1)*512;
 
 offset[0] = 930;
 int fcClx = stream.getInteger(offset);
 if(fcClx == -1)
 {
 System.out.println("This version of doc can not be parsed!");
 return;
 }
 
 int offsetClx = tableStream + fcClx;
 
 offset[0] = offsetClx + 1;
 int lcb = stream.getInteger(offset);
 
 int countPcd = (lcb - 4)/12;
 int countCp = (lcb - countPcd*8)/4;
 int offsetPlcpcd = offsetClx + 5;
 
 for(int i=0;i<countPcd;i++)
 {
 int offsetPcd = offsetPlcpcd + countCp*4 + i*8;
 
 offset[0] = offsetPcd + 2;
 int start = stream.getInteger(offset);
 int fc = start >> 30;
 start = (start << 2) >> 2;
 
 offset[0] = offsetPlcpcd + i*4;
 int cpPre = stream.getInteger(offset);
 int cpNext = stream.getInteger(offset);
 int length = cpNext - cpPre -1;
 if(fc == 0)
 {
 length *= 2;
 }
 else
 {
 start = start/2;
 }
 
 start += 512;
 bytesToString(ogiBytes, content, start, length, fc);
 
 System.out.println(start +", "+ length);
 }
 
 FileUtil.writeAscFile("E:output.txt", content.toString(), false);
 
 System.out.println("Done!");
 
 }
}

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　抽取word文本　

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