diff --git a/README.md b/README.md
index dda8af5..fdfe3a5 100644
--- a/README.md
+++ b/README.md
@@ -191,5 +191,7 @@ Config.UseConfig("org.fortest", (cnf)->{
 http://mvn.yuandian.com/repository/maven-releases
 http://mvn.yuandian.com/repository/maven-snapshots
 
-如: 192.168.1.113 mvn.yuandian.com
+
+如: host上修改 192.168.1.113 mvn.yuandian.com
+如: dns服务器指向 192.168.1.113
 ```
diff --git a/pom.xml b/pom.xml
index 387670b..0ee9de5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,9 +8,9 @@
   <url>http://yuandian.com</url>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
-    <java.version>17</java.version>
+    <maven.compiler.source>8</maven.compiler.source>
+    <maven.compiler.target>8</maven.compiler.target>
+    <java.version>8</java.version>
     <nacos.version>2.1.0</nacos.version>
     <snakeyaml.version>1.30</snakeyaml.version>
     <logback.version>1.2.11</logback.version>
diff --git a/src/main/java/com/yuandian/common/Config.java b/src/main/java/com/yuandian/common/Config.java
index 63bfacb..c96fa95 100644
--- a/src/main/java/com/yuandian/common/Config.java
+++ b/src/main/java/com/yuandian/common/Config.java
@@ -25,6 +25,7 @@ import com.alibaba.nacos.api.exception.NacosException;
 
 import lombok.Getter;
 import lombok.Setter;
+import lombok.var;
 import lombok.extern.slf4j.Slf4j;
 
 /**
@@ -358,7 +359,6 @@ public class Config {
 				return null;
 			});
 		} catch (Exception e) {
-			//TODO: handle exception
 			e.printStackTrace();
 		}
 
diff --git a/src/main/resources/logback.xml b/src/main/resources/logback.xml
index 77f76b8..1a5cfba 100644
--- a/src/main/resources/logback.xml
+++ b/src/main/resources/logback.xml
@@ -3,7 +3,7 @@
              class="ch.qos.logback.core.ConsoleAppender">
       <encoder>
          <pattern>
-            %d{yyyyMMdd HH:mm:ss.SSS} %-5level%thread(%file:%line): %msg%n
+            %d{yyyyMMdd HH:mm:ss.SSS} %-5level%thread\(%file:%line\): %msg%n
          </pattern>
       </encoder>
    </appender>
diff --git a/src/test/java/com/yuandian/common/ConfigTest.java b/src/test/java/com/yuandian/common/ConfigTest.java
index 3229ca1..c00a006 100644
--- a/src/test/java/com/yuandian/common/ConfigTest.java
+++ b/src/test/java/com/yuandian/common/ConfigTest.java
@@ -13,6 +13,7 @@ import org.junit.jupiter.api.TestMethodOrder;
 
 import com.alibaba.nacos.api.exception.NacosException;
 
+import lombok.var;
 import lombok.extern.slf4j.Slf4j;
 @Slf4j
 @TestMethodOrder(OrderAnnotation.class)