finish handleAnnounce and fix bugs in torrent upload(using ISO_8859_1)

Change-Id: Ic2da7cef878bb7aa66184f04058bb2db2393190e
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 7f85f87..22f3728 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -18,3 +18,5 @@
 spring.mail.properties.mail.smtp.auth=true
 spring.mail.properties.mail.smtp.ssl.enable=true
 spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
+
+logging.level.org.springframework.data.redis= DEBUG