diff --git a/java/wcferry/build.gradle b/java/wcferry/build.gradle
index 6c2c625..1bb444d 100644
--- a/java/wcferry/build.gradle
+++ b/java/wcferry/build.gradle
@@ -10,6 +10,9 @@ repositories {
 }
 
 dependencies {
+    implementation 'org.slf4j:slf4j-api:2.0.7'
+    implementation 'ch.qos.logback:logback-core:1.3.6'
+    implementation 'ch.qos.logback:logback-classic:1.3.6'
     implementation 'com.google.protobuf:protobuf-java:3.22.2'
     implementation 'net.java.dev.jna:jna:5.6.0'
     implementation fileTree(dir: 'libs', include: ['*.jar'])
diff --git a/java/wcferry/src/main/java/com/iamteer/Client.java b/java/wcferry/src/main/java/com/iamteer/Client.java
index 49da935..889fa1e 100644
--- a/java/wcferry/src/main/java/com/iamteer/Client.java
+++ b/java/wcferry/src/main/java/com/iamteer/Client.java
@@ -5,6 +5,8 @@ import com.iamteer.Wcf.Request;
 import com.iamteer.Wcf.Response;
 import io.sisu.nng.Socket;
 import io.sisu.nng.pair.Pair1Socket;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.nio.ByteBuffer;
 import java.util.Arrays;
@@ -12,6 +14,7 @@ import java.util.Arrays;
 public class Client {
     private final int BUFFER_SIZE = 16 * 1024 * 1024; // 16M
     private Socket socket = null;
+    private static Logger logger = LoggerFactory.getLogger(Client.class);
 
     public Client(String hostPort) {
         connectRPC(hostPort);
@@ -21,11 +24,12 @@ public class Client {
         try {
             socket = new Pair1Socket();
             socket.dial(url);
+            logger.info("请点击登录微信");
             while (!isLogin()) { // 直到登录成功
                 waitMs(1000);
             }
         } catch (Exception e) {
-            e.printStackTrace();
+            logger.error("连接 RPC 失败: ", e);
             System.exit(-1);
         }
     }
@@ -55,7 +59,7 @@ public class Client {
             long size = socket.receive(ret, true);
             return Response.parseFrom(Arrays.copyOfRange(ret.array(), 0, (int) size));
         } catch (Exception e) {
-            e.printStackTrace();
+            logger.error("命令调用失败: ", e);
             return null;
         }
     }
diff --git a/java/wcferry/src/main/java/com/iamteer/Main.java b/java/wcferry/src/main/java/com/iamteer/Main.java
index ff27b1a..e68c513 100644
--- a/java/wcferry/src/main/java/com/iamteer/Main.java
+++ b/java/wcferry/src/main/java/com/iamteer/Main.java
@@ -1,10 +1,15 @@
 package com.iamteer;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class Main {
+    private static Logger logger = LoggerFactory.getLogger(Main.class);
+
     public static void main(String[] args) {
         final String url = "tcp://192.168.1.104:10086";
         Client client = new Client(url);
 
-        System.out.println("IsLogin: " + client.isLogin());
+        logger.info("isLogin: {}", client.isLogin());
     }
 }
diff --git a/java/wcferry/src/main/resources/logback.xml b/java/wcferry/src/main/resources/logback.xml
new file mode 100644
index 0000000..6e6c67d
--- /dev/null
+++ b/java/wcferry/src/main/resources/logback.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <!-- appender 的配置表示打印到控制台。 -->
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <!-- encoder 默认配置为 PatternLayoutEncoder -->
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="debug">
+        <appender-ref ref="STDOUT" />
+    </root>
+
+</configuration>
\ No newline at end of file