diff --git a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/util/RandImageUtil.java b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/util/RandImageUtil.java
index 8335beae..8bb714f1 100644
--- a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/util/RandImageUtil.java
+++ b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/util/RandImageUtil.java
@@ -82,7 +82,6 @@ public class RandImageUtil {
         base64 = base64.replace("\n", "").replace("\r", "");//删除 \r\n
 
         //写到指定位置
-        //ImageIO.write(bufferedImage, "png", new File(""));
 
         return BASE64_PRE+base64;
     }
@@ -99,7 +98,6 @@ public class RandImageUtil {
 //		graphics.setColor(getRandColor(100, 200)); // ---2
         graphics.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
 
-//        final Random random = new Random();
         // 随机产生干扰线，使图象中的认证码不易被其它程序探测到
         for (int i = 0; i < COUNT; i++) {
             graphics.setColor(getRandColor(150, 200)); // ---3
@@ -114,11 +112,9 @@ public class RandImageUtil {
         for (int i = 0; i < resultCode.length(); i++) {
             // 将认证码显示到图象中,调用函数出来的颜色相同，可能是因为种子太接近，所以只能直接生成
             // graphics.setColor(new Color(20 + random.nextInt(130), 20 + random
-            // .nextInt(130), 20 + random.nextInt(130)));
             // 设置字体颜色
             graphics.setColor(Color.BLACK);
             // 设置字体样式
-//			graphics.setFont(new Font("Arial Black", Font.ITALIC, 18));
             graphics.setFont(new Font("Times New Roman", Font.BOLD, 24));
             // 设置字符，字符间距，上边距
             graphics.drawString(String.valueOf(resultCode.charAt(i)), (23 * i) + 8, 26);
@@ -133,7 +129,6 @@ public class RandImageUtil {
     }
 
     private static Color getRandColor(int fc, int bc) { // 取得给定范围随机颜色
-//        final Random random = new Random();
         if (fc > 255) {
             fc = 255;
         }