123

2024-12-18 18:01:41 +08:00
parent e3b42216f1
commit 10a5f1c903
14 changed files with 334 additions and 4 deletions
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java
@@ -322,4 +322,15 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils {
            .collect(Collectors.toList());
    }

+
+    public static String cat(String str,Integer num){
+        if(str == null){
+            return str;
+        }
+        if(str.length() < num){
+            return str;
+        }
+        return str.substring(0,num);
+    }
+
 }