public static void getJarResourceFile(String fileDir, String desDir) {
File dir = new File(desDir + File.separator + fileDir);
if (dir.exists() && dir.listFiles().length > 0)
return;
dir.mkdirs();
//获取容器资源解析器
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
try {
//获取所有匹配的文件
Resource[] resources = resolver.getResources("classpath:" + fileDir + "/*.*");
for (Resource src : resources) {
try {
//获得文件流,因为在jar文件中,不能直接通过文件资源路径拿到文件,但是可以在jar包中拿到文件流
InputStream stream = src.getInputStream();
String targetFilePath = dir.getPath() + File.separator + src.getFilename();
File ttfFile = new File(targetFilePath);
Files.copy(stream, ttfFile.toPath());
} catch (Exception e) {
}
}
} catch (IOException e) {
}
}