java实现cad(dxf格式)转svg

package com.common.utils; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.io.RandomAccessFile; import java.io.Reader; import java.io.Writer; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; /** * 文件常用工具包 * @since 1.0 */ public class FileUtils { /** * 读取绝对路径的文件内容 * @param filename * String 绝对路径+文件名+文件类型 * @return String */ public String readTruePathFile(String filename) { StringBuffer strBuffer = new StringBuffer(); try { BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filename), "UTF-8")); String line = null; while ((line = br.readLine()) != null) { strBuffer.append(line).append("\r\n"); } br.close(); } catch (IOException e) { e.printStackTrace(); } return strBuffer.toString(); } /** * 写文件 * @param strBuffer * 写入的字符串 * @param filename * 绝对路径+文件名+文件类型 */ public void write(String strBuffer, String filename) { try { filename = filename.replaceAll("\\\\", "/"); File file = new File(filename); file.createNewFile(); FileOutputStream out = new FileOutputStream(file); OutputStreamWriter osw = new OutputStreamWriter(out, "GB2312"); osw.write(strBuffer); osw.close(); file.exists(); } catch (IOException e) { e.printStackTrace(); } } /** * 文件结尾处追加数据 * @param filePath * @param content */ public void appendFile(String filePath, String content) { try { //打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件 FileWriter writer = new FileWriter(filePath.replace("\\", "/"), true); writer.write(content); writer.close(); } catch (IOException e) { createFile(filePath); appendFile(filePath, content); } } /** * 创建文件及文件夹 * @param filePath */ public void createFile(String filePath) { mkdirs(filePath.replaceAll("[\\w-]+\\.\\w+$", "")); try { new File(filePath.replace("\\", "/")).createNewFile(); } catch (IOException e) { e.printStackTrace(); } } /** * 创建文件夹 * @param filename */ public void mkdirs(String filename) { String[] dirname = filename.replace("\\", "/").replaceAll("[A-Za-z0-9.]+$", "").split("/"); StringBuffer filepath = new StringBuffer(); for (int i = 0; i < dirname.length; i++) { File file = new File(filepath.append(dirname[i]).append("/").toString()); file.mkdir(); } } /** * 利用传入的InputStream写文件到filename * @param filename * String 绝对路径+文件名+文件类型 * @param in * InputStream */ public void write(String filename, InputStream in) { byte[] b = new byte[2048]; try { filename = filename.replaceAll("//", "/"); File file = new File(filename); if (file.isFile()) { file.delete(); } file.createNewFile(); FileOutputStream out = new FileOutputStream(file); int len = 0; do { len = in.read(b); if (len == -1) break; out.write(b, 0, len); } while (len != -1); file.exists(); out.close(); } catch (IOException e) { e.printStackTrace(); } } /** * 获取从classpath根目录开始读取文件注意转化成中文 * @param path * String * @return String */ public String getCPFile(String path) { URL url = FileUtils.class.getClassLoader().getResource(path); String filepath = url.getFile(); File file = new File(filepath); byte[] retBuffer = new byte[(int) file.length()]; try { FileInputStream fis = new FileInputStream(filepath); fis.read(retBuffer); fis.close(); return new String(retBuffer, "UTF-8"); } catch (IOException e) { return null; } } /** * 利用java本地拷贝文件及文件夹,实现文件夹对文件夹的拷贝 * @param objDir * 目标文件夹 * @param srcDir * 源的文件夹 * @throws IOException */ public void copyDirectiory(String objDir, String srcDir) throws IOException { (new File(objDir)).mkdirs(); File[] file = (new File(srcDir)).listFiles(); for (int i = 0; i < file.length; i++) { if (file[i].isFile()) { FileInputStream input = new FileInputStream(file[i]); FileOutputStream output = new FileOutputStream(objDir + "/" + file[i].getName()); byte[] b = new byte[1024 * 5]; int len; while ((len = input.read(b)) != -1) { output.write(b, 0, len); } output.flush(); output.close(); input.close(); } if (file[i].isDirectory()) { copyDirectiory(objDir + "/" + file[i].getName(), srcDir + "/" + file[i].getName()); } } } /** * 将一个文件inName拷贝到另外一个文件outName中 * @param inName * 源文件路径 * @param outName * 目标文件路径 * @throws FileNotFoundException * @throws IOException */ public void copyFile(String inName, String outName) throws FileNotFoundException, IOException { BufferedInputStream is = new BufferedInputStream(new FileInputStream(inName)); BufferedOutputStream os = new BufferedOutputStream(new FileOutputStream(outName)); copyFile(is, os, true); } public void copyFile(InputStream is, OutputStream os, boolean close) throws IOException { int b; while ((b = is.read()) != -1) { os.write(b); } is.close(); if (close) os.close(); } /** * 拷贝文件 * @param inName * String * @param pw * PrintWriter * @param close * boolean 执行完毕后Writer是否要关闭 * @throws FileNotFoundException * @throws IOException */ public void copyFile(String inName, PrintWriter pw, boolean close) throws FileNotFoundException, IOException { BufferedReader is = new BufferedReader(new FileReader(inName)); copyFile(is, pw, close); } private void copyFile(Reader is, Writer os, boolean close) throws IOException { int b; while ((b = is.read()) != -1) { os.write(b); } is.close(); if (close) os.close(); } /** * 从文件inName中读取第一行的内容 * @param inName * 源文件路径 * @return 第一行的内容 * @throws FileNotFoundException * @throws IOException */ public String readLine(String inName) throws FileNotFoundException, IOException { BufferedReader is = new BufferedReader(new FileReader(inName)); String line = null; line = is.readLine(); is.close(); return line; } /** * default buffer size */ private final int BLKSIZ = 8192; /** * 拷贝文件 * @param inName * String 输入文件名 * @param outName * String 输出文件名 * @throws FileNotFoundException * @throws IOException */ public void copyFileBuffered(String inName, String outName) throws FileNotFoundException, IOException { InputStream is = new FileInputStream(inName); OutputStream os = new FileOutputStream(outName); int count = 0; byte b[] = new byte[BLKSIZ]; while ((count = is.read(b)) != -1) { os.write(b, 0, count); } is.close(); os.close(); } /** * 将String变成文本文件 * @param t