From e54ef5e185c46a35641dce47b792c4f20b98879a Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期三, 02 十一月 2022 19:08:25 +0800
Subject: [PATCH] 1
---
src/main/java/com/lf/server/helper/StringHelper.java | 124 +++++++++++++++++++++++------------------
1 files changed, 69 insertions(+), 55 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/StringHelper.java b/src/main/java/com/lf/server/helper/StringHelper.java
index e66dedb..b38ee98 100644
--- a/src/main/java/com/lf/server/helper/StringHelper.java
+++ b/src/main/java/com/lf/server/helper/StringHelper.java
@@ -2,7 +2,6 @@
import com.lf.server.entity.all.StaticData;
-import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
@@ -16,7 +15,7 @@
/**
* 鏁板瓧姝ｅ垯
*/
- public static final Pattern NUMBER_PATTERN = Pattern.compile("^[-\\+]?[\\d]*[.]?[\\d]*$");
+ public static final Pattern NUMBER_PATTERN = Pattern.compile("-?\\d+(\\.\\d+)?");
/**
* 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 1
@@ -28,16 +27,35 @@
*/
public static final SimpleDateFormat YMDHMS_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- public static final double D1024 = 1024.0;
+ /**
+ * 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 3
+ */
+ public static final SimpleDateFormat YMD__FORMAT = new SimpleDateFormat("yyyyMMdd_");
/**
- * 鍒ゆ柇瀛楃涓�,鏄惁涓烘暟瀛�
- *
- * @param str
- * @return
+ * 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 4
*/
- public static boolean isNumber(String str) {
- return NUMBER_PATTERN.matcher(str).matches();
+ public static final SimpleDateFormat YMD_HM_FORMAT = new SimpleDateFormat("yyyyMMdd_HHmm");
+
+ /**
+ * 鍒ゆ柇瀛楃涓�,鏄惁涓烘暣鏁�
+ */
+ public static boolean isInteger(String str) {
+ return str != null && str.matches("[0-9]+");
+ }
+
+ /**
+ * 鍒ゆ柇瀛楃涓�,鏄惁涓烘诞鐐规暟
+ */
+ public static boolean isNumeric(String str) {
+ return str != null && str.matches("-?\\d+(\\.\\d+)?");
+ }
+
+ /**
+ * 鍒ゆ柇瀛楃涓�,鏄惁涓烘诞鐐规暟
+ */
+ public static boolean isNumeric2(String str) {
+ return str != null && NUMBER_PATTERN.matcher(str).matches();
}
/**
@@ -46,10 +64,12 @@
public static Pattern datePattern = Pattern.compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/]((((0?[13578])|(1[02]))[\\-\\/]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/]((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/]((((0?[13578])|(1[02]))[\\-\\/]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/]((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
/**
+ * SQL姝ｅ垯
+ */
+ public static Pattern sqlPattern = Pattern.compile("|and|exec|execute|insert|select|delete|update|count|drop|\\*|%|chr|mid|master|truncate|char|declare|sitename|net user|xp_cmdshell|;|or|-|\\+|,|like");
+
+ /**
* 瀛楃涓茶浆涓烘棩鏈�
- *
- * @param str
- * @return
*/
public static Date parseDate(String str) {
try {
@@ -61,9 +81,6 @@
/**
* 瀛楃涓茶浆涓烘棩鏈熸椂闂�
- *
- * @param str
- * @return
*/
public static Date parseTime(String str) {
try {
@@ -75,9 +92,6 @@
/**
* 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);
@@ -86,10 +100,7 @@
}
/**
- * 瀛楃涓诧紝鏄惁涓簄ull鎴�""
- *
- * @param str
- * @return
+ * 瀛楃涓诧紝鏄惁涓簄ull 鎴� ""
*/
public static boolean isNull(String str) {
return null == str || str.length() == 0;
@@ -97,22 +108,49 @@
/**
* 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍�
- *
- * @param str
- * @return
*/
public static boolean isEmpty(String str) {
return str == null || "".equals(str.trim());
}
/**
- * 棣栧瓧姣嶅ぇ鍐�
- *
- * @param str
- * @return
+ * 鑾峰彇 like 瀛楃涓�
*/
- public static String capitalize(String str) {
- return String.valueOf(str.charAt(0)).toUpperCase() + str.substring(1);
+ public static String getLikeStr(String str) {
+ return StringHelper.isEmpty(str) ? null : "%" + str.trim() + "%";
+ }
+
+ /**
+ * 鑾峰彇 like 瀛楃涓�-2
+ */
+ public static String getLikeStr2(String str) {
+ return StringHelper.isEmpty(str) ? "%" : "%" + str.trim() + "%";
+ }
+
+ /**
+ * 棣栧瓧姣嶅ぇ鍐�
+ */
+ public static String firstCharToUpperCase(String str) {
+ return str.substring(0, 1).toUpperCase() + str.substring(1);
+ }
+
+ /**
+ * 棣栧瓧姣嶅皬鍐�
+ */
+ public static String firstCharToLowerCase(String str) {
+ return str.substring(0, 1).toLowerCase() + str.substring(1);
+ }
+
+ /**
+ * 鍒ゆ柇鍊兼槸鍚﹀瓨鍦⊿QL娉ㄥ叆
+ *
+ * @param str 瀛楃涓�
+ * @return 鏄�/鍚�
+ */
+ public static boolean isSqlInjection(String str) {
+ Matcher m = sqlPattern.matcher(str);
+
+ return m.matches();
}
/**
@@ -123,29 +161,5 @@
*/
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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