From 85fe910f2544debf7166e14d0a074f8b5ad6bf04 Mon Sep 17 00:00:00 2001
From: yukaidi <yukaidi@duck.com>
Date: Fri, 29 May 2026 00:32:56 +0800
Subject: [PATCH] =?UTF-8?q?fix(bug):=20ParamUtil=20=E4=BF=AE=E5=A4=8D?=
 =?UTF-8?q?=E6=95=B0=E7=BB=84=E8=B6=8A=E7=95=8C=E9=97=AE=E9=A2=98?=
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原代码当 kv.length == 0 时访问 kv[0] 会抛出异常。
改为跳过空参数，使用 split(=, 2) 限制分割次数。
---
 core/src/main/java/cn/qaiu/vx/core/util/ParamUtil.java | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/cn/qaiu/vx/core/util/ParamUtil.java b/core/src/main/java/cn/qaiu/vx/core/util/ParamUtil.java
index 0b218c0..b1ae974 100644
--- a/core/src/main/java/cn/qaiu/vx/core/util/ParamUtil.java
+++ b/core/src/main/java/cn/qaiu/vx/core/util/ParamUtil.java
@@ -36,16 +36,20 @@ public final class ParamUtil {
 
     public static MultiMap paramsToMap(String paramString) {
         MultiMap entries = MultiMap.caseInsensitiveMultiMap();
-        if (paramString == null) return entries;
+        if (paramString == null || paramString.isEmpty()) return entries;
         String[] params = paramString.split("&");
         if (params.length == 0) return entries;
         for (String param : params) {
-            String[] kv = param.split("=");
+            if (param == null || param.isEmpty()) {
+                continue;
+            }
+            String[] kv = param.split("=", 2);
             if (kv.length == 2) {
                 entries.set(kv[0], kv[1]);
-            } else {
+            } else if (kv.length == 1) {
                 entries.set(kv[0], "");
             }
+            // kv.length == 0 时（空字符串），跳过
         }
         return entries;
     }