From b309f30d90526062d77514cb321a406e73b4a078 Mon Sep 17 00:00:00 2001
From: Gary <chghe@telenavsoftware.com>
Date: Wed, 7 Feb 2024 02:44:43 +0800
Subject: [PATCH] 1.fix sql issue

---
 .../src/main/java/com/luoo/music/service/TagService.java      | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/luoo_music/src/main/java/com/luoo/music/service/TagService.java b/luoo_music/src/main/java/com/luoo/music/service/TagService.java
index 9a828e2..c047971 100644
--- a/luoo_music/src/main/java/com/luoo/music/service/TagService.java
+++ b/luoo_music/src/main/java/com/luoo/music/service/TagService.java
@@ -1,5 +1,6 @@
 package com.luoo.music.service;
 
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
@@ -28,6 +29,9 @@ public class TagService {
 	}
 
 	public Map<String, List<String>> getTagMap(List<String> journalIds) {
+		if(journalIds.isEmpty()) {
+			return Collections.emptyMap();
+		}
 		List<Object[]> pairs = tagDao.getJounralId2TagPairs(journalIds);
 		return pairs.stream().collect(Collectors.groupingBy(s -> s[0].toString(),
 				Collectors.mapping(s -> s[1].toString(), Collectors.toList())));