From 4ebd33096f53591c3124416773e7f2095d6d82d6 Mon Sep 17 00:00:00 2001
From: guqing <38999863+guqing@users.noreply.github.com>
Date: Mon, 25 Sep 2023 10:50:14 +0800
Subject: [PATCH] fix: incorrect sitemap link in robots.txt (#24)
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### What this PR does?
修复 robots.txt 中 sitemap 链接不正确的问题

Fixes #23

```release-note
修复 robots.txt 中 Sitemap 链接不正确的问题
```
---
 src/main/java/run/halo/sitemap/SitemapPluginConfig.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/run/halo/sitemap/SitemapPluginConfig.java b/src/main/java/run/halo/sitemap/SitemapPluginConfig.java
index da927f2..bfb460f 100644
--- a/src/main/java/run/halo/sitemap/SitemapPluginConfig.java
+++ b/src/main/java/run/halo/sitemap/SitemapPluginConfig.java
@@ -5,6 +5,7 @@
 
 import java.net.MalformedURLException;
 import lombok.AllArgsConstructor;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.context.annotation.Bean;
 import org.springframework.http.CacheControl;
 import org.springframework.http.MediaType;
@@ -60,7 +61,9 @@ RouterFunction<ServerResponse> robotsTextFunction() {
                         .bodyValue(defaultRule);
                 }
                 var uri = externalUrlSupplier.getURL(request.exchange().getRequest());
-                var sitemapURL = "Sitemap: " + uri + "sitemap.xml";
+                var sitemapURL = "Sitemap: "
+                    + StringUtils.appendIfMissing(uri.toString(), "/")
+                    + "sitemap.xml";
                 return ServerResponse.ok()
                     .cacheControl(CacheControl.noCache())
                     .contentType(MediaType.TEXT_PLAIN)