ttf解析，如何通过获取文件头信息得到字体名称。
如题
[解决办法]
TTFParser.java
import java.io.IOException;import java.io.RandomAccessFile;import java.nio.charset.Charset;import java.util.HashMap;import java.util.Map;/** * TTF Font file parser * <p> * sample: * <code><pre> * File fs = new File("C:\\Windows\\Fonts"); * File[] files = fs.listFiles(new FilenameFilter() { * * public boolean accept(File dir, String name) { * if (name.endsWith("ttf")) return true; * return false; * } * }); * for (File file : files) { * TTFParser parser = new TTFParser(); * parser.parse(file.getAbsolutePath()); * System.out.println("font name: " + parser.getFontName()); * } * </pre></code> * <p/> * Copyright: Copyright (c) 12-8-6 下午3:51 * <p/> * Version: 1.0 * <p/> */public class TTFParser { public static int COPYRIGHT = 0; public static int FAMILY_NAME = 1; public static int FONT_SUBFAMILY_NAME = 2; public static int UNIQUE_FONT_IDENTIFIER = 3; public static int FULL_FONT_NAME = 4; public static int VERSION = 5; public static int POSTSCRIPT_NAME = 6; public static int TRADEMARK = 7; public static int MANUFACTURER = 8; public static int DESIGNER = 9; public static int DESCRIPTION = 10; public static int URL_VENDOR = 11; public static int URL_DESIGNER = 12; public static int LICENSE_DESCRIPTION = 13; public static int LICENSE_INFO_URL = 14; private Map<Integer, String> fontProperties = new HashMap<Integer, String>(); /** * 获取ttf font name * @return */ public String getFontName() { if (fontProperties.containsKey(FULL_FONT_NAME)) { return fontProperties.get(FULL_FONT_NAME); } else if (fontProperties.containsKey(FAMILY_NAME)) { return fontProperties.get(FAMILY_NAME); } else { return null; } } /** * 获取ttf属性 * @param nameID 属性标记，见静态变量 * @return 属性值 */ public String getFontPropertie(int nameID) { if (fontProperties.containsKey(nameID)) { return fontProperties.get(nameID); } else { return null; } } /** * 获取ttf属性集合 * @return 属性集合(MAP) */ public Map<Integer, String> getFontProperties() { return fontProperties; } /** * 执行解析 * @param fileName ttf文件名 * @throws IOException */ public void parse(String fileName) throws IOException { fontProperties.clear(); RandomAccessFile f = null; try { f = new RandomAccessFile(fileName, "r"); parseInner(f); } finally { try { f.close(); } catch (Exception e) { // ignore; } } } private void parseInner(RandomAccessFile randomAccessFile) throws IOException { int majorVersion = randomAccessFile.readShort(); int minorVersion = randomAccessFile.readShort(); int numOfTables = randomAccessFile.readShort(); if (majorVersion != 1 || minorVersion != 0) { return; } // jump to TableDirectory struct randomAccessFile.seek(12); boolean found = false; byte[] buff = new byte[4]; TableDirectory tableDirectory = new TableDirectory(); for (int i = 0; i < numOfTables; i++) { randomAccessFile.read(buff); tableDirectory.name = new String(buff); tableDirectory.checkSum = randomAccessFile.readInt(); tableDirectory.offset = randomAccessFile.readInt(); tableDirectory.length = randomAccessFile.readInt(); if ("name".equalsIgnoreCase(tableDirectory.name)) { found = true; break; } else if (tableDirectory.name == null || tableDirectory.name.length() == 0) { break; } } // not found table of name if (!found) { return; } randomAccessFile.seek(tableDirectory.offset); NameTableHeader nameTableHeader = new NameTableHeader(); nameTableHeader.fSelector = randomAccessFile.readShort(); nameTableHeader.nRCount = randomAccessFile.readShort(); nameTableHeader.storageOffset = randomAccessFile.readShort(); NameRecord nameRecord = new NameRecord(); for (int i = 0; i < nameTableHeader.nRCount; i++) { nameRecord.platformID = randomAccessFile.readShort(); nameRecord.encodingID = randomAccessFile.readShort(); nameRecord.languageID = randomAccessFile.readShort(); nameRecord.nameID = randomAccessFile.readShort(); nameRecord.stringLength = randomAccessFile.readShort(); nameRecord.stringOffset = randomAccessFile.readShort(); long pos = randomAccessFile.getFilePointer(); byte[] bf = new byte[nameRecord.stringLength]; long vpos = tableDirectory.offset + nameRecord.stringOffset + nameTableHeader.storageOffset; randomAccessFile.seek(vpos); randomAccessFile.read(bf); String temp = new String(bf, Charset.forName("utf-16")); fontProperties.put(nameRecord.nameID, temp); randomAccessFile.seek(pos); } } @Override public String toString() { return fontProperties.toString(); } private static class TableDirectory { String name; //table name int checkSum; //Check sum int offset; //Offset from beginning of file int length; //length of the table in bytes } private static class NameTableHeader { int fSelector; //format selector. Always 0 int nRCount; //Name Records count int storageOffset; //Offset for strings storage, } private static class NameRecord { int platformID; int encodingID; int languageID; int nameID; int stringLength; int stringOffset; //from start of storage area }}