From ccf84377f8609d6f867a556d2802c57a497232ec Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Sun, 27 Mar 2022 15:34:13 +0800
Subject: [PATCH] 优化导出excel单元格验证,包含变更为开头.防止正常内容被替换
---
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StringUtils.java | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 50 insertions(+), 1 deletions(-)
diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StringUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StringUtils.java
index bf86804..562a348 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StringUtils.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StringUtils.java
@@ -478,4 +478,53 @@
{
return (T) obj;
}
-}
\ No newline at end of file
+
+ /**
+ * 数字左边补齐0，使之达到指定长度。注意，如果数字转换为字符串后，长度大于size，则只保留 最后size个字符。
+ *
+ * @param num 数字对象
+ * @param size 字符串指定长度
+ * @return 返回数字的字符串格式，该字符串为指定长度。
+ */
+ public static final String padl(final Number num, final int size)
+ {
+ return padl(num.toString(), size, '0');
+ }
+
+ /**
+ * 字符串左补齐。如果原始字符串s长度大于size，则只保留最后size个字符。
+ *
+ * @param s 原始字符串
+ * @param size 字符串指定长度
+ * @param c 用于补齐的字符
+ * @return 返回指定长度的字符串，由原字符串左补齐或截取得到。
+ */
+ public static final String padl(final String s, final int size, final char c)
+ {
+ final StringBuilder sb = new StringBuilder(size);
+ if (s != null)
+ {
+ final int len = s.length();
+ if (s.length() <= size)
+ {
+ for (int i = size - len; i > 0; i--)
+ {
+ sb.append(c);
+ }
+ sb.append(s);
+ }
+ else
+ {
+ return s.substring(len - size, len);
+ }
+ }
+ else
+ {
+ for (int i = size; i > 0; i--)
+ {
+ sb.append(c);
+ }
+ }
+ return sb.toString();
+ }
+}
--
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