From 24b5b6012ad0c8d3f54e73eb90d35253e59f865a Mon Sep 17 00:00:00 2001
From: jaysunxiao <jaysunxiao@gmail.com>
Date: Sun, 17 Aug 2025 17:19:54 +0800
Subject: [PATCH] feat: render placeholder in string template like JavaScript

---
 .../com/zfoo/protocol/util/StringUtils.java    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/protocol/src/main/java/com/zfoo/protocol/util/StringUtils.java b/protocol/src/main/java/com/zfoo/protocol/util/StringUtils.java
index 145713df..433d88bb 100644
--- a/protocol/src/main/java/com/zfoo/protocol/util/StringUtils.java
+++ b/protocol/src/main/java/com/zfoo/protocol/util/StringUtils.java
@@ -16,6 +16,7 @@ import com.zfoo.protocol.collection.ArrayUtils;
 
 import java.nio.charset.Charset;
 import java.util.*;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 /**
@@ -468,6 +469,23 @@ public abstract class StringUtils {
         return builder.toString();
     }
 
+    /**
+     * 格式化字符串，类似JavaScript的占位符${name}替换
+     */
+    public static String render(String template, Map<String, String> params) {
+        var pattern = Pattern.compile("\\$\\{(\\w+)\\}");
+        var matcher = pattern.matcher(template);
+        var sb = new StringBuffer();
+
+        while (matcher.find()) {
+            var key = matcher.group(1);
+            var replacement = params.getOrDefault(key, "");
+            matcher.appendReplacement(sb, Matcher.quoteReplacement(replacement));
+        }
+        matcher.appendTail(sb);
+        return sb.toString();
+    }
+
     public static boolean isEnglishChar(char ch) {
         return ENGLISH_SET.contains(ch);
     }