图形验证码修改

server/src/main/java/com/pica/cloud/account/account/server/util/captcha/CaptchaUtil.java

@@ -33,7 +33,10 @@ public class CaptchaUtil {
     public static String generateUUIDText(int count) {
         int pos = count < MAXSIZE ? count : MAXSIZE;
         pos = pos <= 0 ? 5 : pos;
-        return UUID.randomUUID().toString().replace("_", "").substring(0, pos);
+        String uuid = UUID.randomUUID().toString().replace("_", "");
+        // 去除掉i 1 0 o 等难以分辨的字母
+        uuid = uuid.replaceAll("i","").replaceAll("I","").replaceAll("1","").replaceAll("o","").replaceAll("O","").replaceAll("0","");
+        return uuid.substring(0, pos);
     }
 
     public static byte[] generateImage(String text, CaptchaContext ctx) {