From 47695009ff6580f539df77eb8dbd02cde7cfd77b Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期日, 27 十一月 2022 10:12:53 +0800
Subject: [PATCH] 1
---
src/main/java/com/lf/server/helper/StringHelper.java | 30 ++++++++++++++++++++++++++++--
1 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/StringHelper.java b/src/main/java/com/lf/server/helper/StringHelper.java
index 7f3e185..5b4a6b6 100644
--- a/src/main/java/com/lf/server/helper/StringHelper.java
+++ b/src/main/java/com/lf/server/helper/StringHelper.java
@@ -4,6 +4,7 @@
import java.text.SimpleDateFormat;
import java.util.Date;
+import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@@ -30,7 +31,7 @@
/**
* 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 3
*/
- public static final SimpleDateFormat YMD__FORMAT = new SimpleDateFormat("yyyyMMdd_");
+ public static final SimpleDateFormat YMD2_FORMAT = new SimpleDateFormat("yyyyMMdd");
/**
* 鏍煎紡鍖栧綋鍓嶇郴缁熸棩鏈� 4
@@ -110,7 +111,7 @@
* 瀛楃涓�,鏄惁涓虹┖null鍜岀┖鏍�
*/
public static boolean isEmpty(String str) {
- return str == null || "".equals(str.trim());
+ return null == str || "".equals(str.trim());
}
/**
@@ -162,4 +163,29 @@
public static boolean checkPwdValid(String pwd) {
return Pattern.matches(StaticData.PWD_REG, pwd);
}
+
+ /**
+ * 杩炴帴List闆嗗悎
+ * @param list 鏁存暟闆嗗悎
+ * @param join 杩炴帴瀛楃
+ * @return
+ */
+ public static String join(List<Integer> list, String join) {
+ if (null == list || list.isEmpty()) {
+ return "";
+ }
+
+ StringBuilder sb = new StringBuilder();
+ for (Integer i : list) {
+ if (null != i) {
+ sb.append(i.toString() + join);
+ }
+ }
+
+ if (sb.length() > 0 && sb.lastIndexOf(join) == sb.length() - 1) {
+ sb.deleteCharAt(sb.length() -1 );
+ }
+
+ return sb.toString();
+ }
}
--
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