From c46466b0ea030d2bcab50f1ec6aca8632c846634 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期二, 18 十月 2022 15:48:09 +0800
Subject: [PATCH] 1

---
 src/main/java/com/lf/server/helper/StringHelper.java |   84 +++++++++++++++++++++++++++++++-----------
 1 files changed, 62 insertions(+), 22 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..6c538be 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;
@@ -26,10 +29,19 @@
     public static final SimpleDateFormat YMDHMS_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
     /**
+     * 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 3
+     */
+    public static final SimpleDateFormat YMD__FORMAT = new SimpleDateFormat("yyyyMMdd_");
+
+    /**
+     * 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 4
+     */
+    public static final SimpleDateFormat YMD_HM_FORMAT = new SimpleDateFormat("yyyyMMdd_HHmm");
+
+    public static final double D1024 = 1024.0;
+
+    /**
      * 鍒ゆ柇瀛楃涓�,鏄惁涓烘暟瀛�
-     *
-     * @param str
-     * @return
      */
     public static boolean isNumber(String str) {
         return NUMBER_PATTERN.matcher(str).matches();
@@ -42,9 +54,6 @@
 
     /**
      * 瀛楃涓茶浆涓烘棩鏈�
-     *
-     * @param str
-     * @return
      */
     public static Date parseDate(String str) {
         try {
@@ -56,9 +65,6 @@
 
     /**
      * 瀛楃涓茶浆涓烘棩鏈熸椂闂�
-     *
-     * @param str
-     * @return
      */
     public static Date parseTime(String str) {
         try {
@@ -70,9 +76,6 @@
 
     /**
      * 鍒ゆ柇鍊兼槸鍚︿负鏃ユ湡鏍煎紡
-     *
-     * @param strDate
-     * @return
      */
     public static boolean isDate(String strDate) {
         Matcher m = datePattern.matcher(strDate);
@@ -81,24 +84,61 @@
     }
 
     /**
-     * 瀛楃涓诧紝鏄惁涓虹┖
-     *
-     * @param str
-     * @return
+     * 瀛楃涓诧紝鏄惁涓簄ull 鎴� ""
      */
-    public static boolean isEmpty(String str) {
+    public static boolean isNull(String str) {
         return null == str || str.length() == 0;
     }
 
     /**
+     * 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍�
+     */
+    public static boolean isEmpty(String str) {
+        return str == null || "".equals(str.trim());
+    }
+
+    /**
+     * 鑾峰彇 like 瀛楃涓�
+     */
+    public static String getLikeStr(String name) {
+        return StringHelper.isEmpty(name) ? null : "%" + name.trim() + "%";
+    }
+
+    /**
      * 棣栧瓧姣嶅ぇ鍐�
-     *
-     * @param str
-     * @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
+     */
+    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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