添加删除目录的方法

guns-core/src/main/java/com/stylefeng/guns/core/util/FileUtil.java

 package com.stylefeng.guns.core.util;
 
-import com.stylefeng.guns.core.exception.GunsExceptionEnum;
 import com.stylefeng.guns.core.exception.GunsException;
+import com.stylefeng.guns.core.exception.GunsExceptionEnum;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -51,4 +51,23 @@ public class FileUtil {
             }
         }
     }
+
+    /**
+     * 删除目录
+     *
+     * @author fengshuonan
+     * @Date 2017/10/30 下午4:15
+     */
+    public static boolean deleteDir(File dir) {
+        if (dir.isDirectory()) {
+            String[] children = dir.list();
+            for (int i = 0; i < children.length; i++) {
+                boolean success = deleteDir(new File(dir, children[i]));
+                if (!success) {
+                    return false;
+                }
+            }
+        }
+        return dir.delete();
+    }
 }
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