feat: init commit

src/main/java/xin/merlin/myblog_server/utils/RandomCode.java

@@ -0,0 +1,20 @@
+package xin.merlin.myblog_server.utils;
+
+
+import java.util.Random;
+
+public class RandomCode {
+
+    private static final Random rand = new Random();
+
+    public static String generateID(){
+        // 生成一个0到999999999的随机数，然后格式化为9位数字字符串
+        return String.format("%09d", rand.nextInt(1000000000));
+    }
+
+    public static String generateCode(){
+        // 生成一个0到999999的随机数，然后格式化为6位数字字符串
+        return String.format("%06d", rand.nextInt(1000000));
+    }
+
+}