1 files changed, 3 insertions, 0 deletions
diff --git a/juick-core/src/main/java/com/juick/server/MessagesQueries.java b/juick-core/src/main/java/com/juick/server/MessagesQueries.java
index e6188a86..5659e79c 100644
--- a/juick-core/src/main/java/com/juick/server/MessagesQueries.java
+++ b/juick-core/src/main/java/com/juick/server/MessagesQueries.java
@@ -159,6 +159,9 @@ public class MessagesQueries {
         return sql.execute((ConnectionCallback<Integer>) conn -> {
             conn.setAutoCommit(false);
             final int replyNo;
+            try (PreparedStatement ps = conn.prepareStatement("START TRANSACTION")) {
+                ps.executeUpdate();
+            }
             try (PreparedStatement ps = conn.prepareStatement("SELECT maxreplyid+1 FROM messages WHERE message_id=? FOR UPDATE")) {
                 ps.setInt(1, mid);
                 try (ResultSet resultSet = ps.executeQuery()) {