项目场景：
项目中使用了word转pdf等相关的功能，此处遇见的bug，上一篇的文档的解决方案有点low，此文章介绍直接读取jar包中的内容
解决方案：
这里我直接上接口吧，此接口内参杂的些许的业务，大佬们自行抽取核心代码即可
private static void copyFont(String jarPath ){
File jarfile = new File(jarPath);
try {
URL url = getURLForJarPath(jarPath);
JarURLConnection jarCon = (JarURLConnection) url.openConnection();
JarFile jarFile = jarCon.getJarFile();
Enumeration<JarEntry> jarEntrys = jarFile.entries();
List<String> list = new ArrayList<String>();
FileOutputStream fileOut = null;
String filePath = null;
while (jarEntrys.hasMoreElements()) {
JarEntry entry = jarEntrys.nextElement();
String jarEntryPath = entry.getName();
String jarEntryName=jarEntryPath.substring(jarEntryPath.lastIndexOf("/"));
if (jarEntryPath.contains("/biz/wordtopdf/fonts") && !entry.isDirectory()) {
list.add(jarEntryName);
filePath = getWebRoot() + File.separator + "swordweb" + File.separator + "biz" + File.separator
+ "wordtopdf" + File.separator + "fonts";
if (!new File(filePath).exists()) {
logger.debug(filePath,"目录不存在，进行创建！");
new File(filePath).mkdirs();
}
InputStream input = jarFile.getInputStream(entry);
filePath += jarEntryName;
File baseDir = new File(filePath);
//做校验判断该路径下文件是否存在
if (!baseDir.exists()) {
fileOut = new FileOutputStream(filePath);
fileOut.write(convertByte(input));
input.close();
}
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}