From f2e5a592b8b74035bb1c943b4dca81e28be785a6 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期三, 12 十月 2022 12:13:19 +0800
Subject: [PATCH] 1
---
src/main/java/com/lf/server/helper/StringHelper.java | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++----
1 files changed, 51 insertions(+), 4 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/StringHelper.java b/src/main/java/com/lf/server/helper/StringHelper.java
index 8509337..e66dedb 100644
--- a/src/main/java/com/lf/server/helper/StringHelper.java
+++ b/src/main/java/com/lf/server/helper/StringHelper.java
@@ -1,5 +1,8 @@
package com.lf.server.helper;
+import com.lf.server.entity.all.StaticData;
+
+import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
@@ -24,6 +27,8 @@
* 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 2
*/
public static final SimpleDateFormat YMDHMS_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+ public static final double D1024 = 1024.0;
/**
* 鍒ゆ柇瀛楃涓�,鏄惁涓烘暟瀛�
@@ -81,13 +86,23 @@
}
/**
- * 瀛楃涓诧紝鏄惁涓虹┖
+ * 瀛楃涓诧紝鏄惁涓簄ull鎴�""
+ *
+ * @param str
+ * @return
+ */
+ public static boolean isNull(String str) {
+ return null == str || str.length() == 0;
+ }
+
+ /**
+ * 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍�
*
* @param str
* @return
*/
public static boolean isEmpty(String str) {
- return null == str || str.length() == 0;
+ return str == null || "".equals(str.trim());
}
/**
@@ -97,8 +112,40 @@
* @return
*/
public static String capitalize(String str) {
- String f = str.charAt(0) + "";
+ return String.valueOf(str.charAt(0)).toUpperCase() + str.substring(1);
+ }
- return f.toUpperCase() + str.substring(1);
+ /**
+ * 鏍￠獙瀵嗙爜鏄�/鍚﹀悎娉�
+ *
+ * @param pwd 瀵嗙爜
+ * @return 鏄�/鍚﹀悎娉�
+ */
+ public static boolean checkPwdValid(String pwd) {
+ return Pattern.matches(StaticData.PWD_REG, pwd);
+ }
+
+ /**
+ * 瀛楄妭鍗曚綅鎹㈢畻
+ *
+ * @param byteNumber
+ * @return
+ */
+ public static String formatByte(long byteNumber) {
+ double kbNumber = byteNumber / D1024;
+ if (kbNumber < D1024) {
+ return new DecimalFormat("#.##KB").format(kbNumber);
+ }
+ double mbNumber = kbNumber / D1024;
+ if (mbNumber < D1024) {
+ return new DecimalFormat("#.##MB").format(mbNumber);
+ }
+ double gbNumber = mbNumber / D1024;
+ if (gbNumber < D1024) {
+ return new DecimalFormat("#.##GB").format(gbNumber);
+ }
+ double tbNumber = gbNumber / D1024;
+
+ return new DecimalFormat("#.##TB").format(tbNumber);
}
}
--
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