diff --git a/src/main/java/net/lamgc/cgj/pixiv/PixivURL.java b/src/main/java/net/lamgc/cgj/pixiv/PixivURL.java
index db8f555..7cc0768 100644
--- a/src/main/java/net/lamgc/cgj/pixiv/PixivURL.java
+++ b/src/main/java/net/lamgc/cgj/pixiv/PixivURL.java
@@ -10,8 +10,9 @@ import java.util.GregorianCalendar;
  * 目前已整理的一些Pixiv接口列表
  */
 @SuppressWarnings("unused")
-public class PixivURL {
+public final class PixivURL {
 
+    private PixivURL() {}
 
     public final static String PIXIV_INDEX_URL = "https://www.pixiv.net";
 
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
index 947f1be..757aec8 100644
--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
@@ -49,7 +49,8 @@
     </Appenders>
 
     <Loggers>
-        <Root level="TRACE">
+        <Logger level="INFO" name="org.apache.http"/>
+        <Root level="DEBUG">
             <AppenderRef ref="STANDARD_STDOUT"/>
             <AppenderRef ref="STANDARD_STDERR"/>
             <AppenderRef ref="rollingFile"/>