项目初始化，随框架更新

src/main/gg/frog/mc/permissionstime/utils/FileUtil.java

@@ -0,0 +1,46 @@
+package gg.frog.mc.permissionstime.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+public class FileUtil {
+    
+    public interface FindFilesDo {
+        boolean isProcess(String fileName);
+        void process(String fileName, InputStream is);
+    }
+    
+    public static void findFilesFromJar(FindFilesDo ffd, Class<?> jarClazz){
+        JarFile jarFile = null;
+        try {
+            String jarFilePath = jarClazz.getProtectionDomain().getCodeSource().getLocation().getFile();
+            jarFile = new JarFile(jarFilePath);
+            Enumeration<JarEntry> entries = jarFile.entries();
+            while (entries.hasMoreElements()) {
+                JarEntry e = entries.nextElement();
+                if(ffd.isProcess(e.getName())){
+                    InputStream is = jarFile.getInputStream(e);
+                    ffd.process(e.getName(), is);
+                    try {
+                        is.close();
+                    } catch (Exception e1) {
+                        e1.printStackTrace();
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (jarFile != null) {
+                try {
+                    jarFile.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+}