初始化

pqs-auth/src/main/java/com/njcn/auth/utils/AuthPubUtil.java

@@ -0,0 +1,29 @@
+package com.njcn.auth.utils;
+
+import cn.hutool.core.util.RandomUtil;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+
+/**
+ * @author hongawen
+ * @version 1.0.0
+ * @date 2021年06月04日 14:00
+ */
+public class AuthPubUtil {
+
+    public static String getKaptchaText(int codeLength) {
+        StringBuilder code = new StringBuilder();
+        int letterLength = RandomUtil.randomInt(codeLength - 1) + 1;
+        code.append(RandomUtil.randomString(RandomUtil.BASE_CHAR, letterLength).toUpperCase(Locale.ROOT));
+        int numberLength = codeLength - letterLength;
+        code.append(RandomUtil.randomString(RandomUtil.BASE_NUMBER, numberLength));
+        List<String> textList = Arrays.asList(code.toString().split(""));
+        //填充完字符后，打乱顺序，返回字符串
+        Collections.shuffle(textList);
+        return String.join("", textList);
+    }
+
+}