diff --git a/tracer-sofa-boot-starter/src/main/java/com/alipay/sofa/tracer/boot/datasource/processor/DataSourceBeanFactoryPostProcessor.java b/tracer-sofa-boot-starter/src/main/java/com/alipay/sofa/tracer/boot/datasource/processor/DataSourceBeanFactoryPostProcessor.java
index 6143d8bb..649c0261 100644
--- a/tracer-sofa-boot-starter/src/main/java/com/alipay/sofa/tracer/boot/datasource/processor/DataSourceBeanFactoryPostProcessor.java
+++ b/tracer-sofa-boot-starter/src/main/java/com/alipay/sofa/tracer/boot/datasource/processor/DataSourceBeanFactoryPostProcessor.java
@@ -122,7 +122,8 @@ private void createDataSourceProxy(ConfigurableListableBeanFactory beanFactory,
         values.add("appName", appName);
         values.add("delegate", new RuntimeBeanReference(transformDatasourceBeanName(beanName)));
         values.add("dbType", resolveDbTypeFromUrl(unwrapPropertyValue(originValues.get(jdbcUrl))));
-        values.add("database", resolveDatabaseFromUrl(unwrapPropertyValue(originValues.get(jdbcUrl))));
+        values.add("database",
+            resolveDatabaseFromUrl(unwrapPropertyValue(originValues.get(jdbcUrl))));
         proxiedBeanDefinition.setPropertyValues(values);
         beanDefinitionRegistry.registerBeanDefinition(beanName, proxiedBeanDefinition);
     }
@@ -131,9 +132,10 @@ protected String unwrapPropertyValue(Object propertyValue) {
         if (propertyValue instanceof TypedStringValue) {
             return ((TypedStringValue) propertyValue).getValue();
         } else if (propertyValue instanceof String) {
-            return (String)propertyValue;
+            return (String) propertyValue;
         }
-        throw new IllegalArgumentException("The property value of jdbcUrl must be the type of String or TypedStringValue");
+        throw new IllegalArgumentException(
+            "The property value of jdbcUrl must be the type of String or TypedStringValue");
     }
 
     public static String transformDatasourceBeanName(String originName) {
diff --git a/tracer-sofa-boot-starter/src/test/java/com/alipay/sofa/tracer/boot/base/DatasourceBeanDefinitionRegistry.java b/tracer-sofa-boot-starter/src/test/java/com/alipay/sofa/tracer/boot/base/DatasourceBeanDefinitionRegistry.java
index f46b5074..35d7d002 100644
--- a/tracer-sofa-boot-starter/src/test/java/com/alipay/sofa/tracer/boot/base/DatasourceBeanDefinitionRegistry.java
+++ b/tracer-sofa-boot-starter/src/test/java/com/alipay/sofa/tracer/boot/base/DatasourceBeanDefinitionRegistry.java
@@ -1,6 +1,18 @@
-/**
- * Alipay.com Inc.
- * Copyright (c) 2004-2018 All Rights Reserved.
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 package com.alipay.sofa.tracer.boot.base;
 
@@ -19,22 +31,29 @@
 public class DatasourceBeanDefinitionRegistry implements BeanDefinitionRegistryPostProcessor {
 
     @Override
-    public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) throws BeansException {
-        BeanDefinitionBuilder definitionBuilder = BeanDefinitionBuilder.genericBeanDefinition(HikariDataSource.class);
+    public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry)
+                                                                                  throws BeansException {
+        BeanDefinitionBuilder definitionBuilder = BeanDefinitionBuilder
+            .genericBeanDefinition(HikariDataSource.class);
         AbstractBeanDefinition beanDefinition = definitionBuilder.getRawBeanDefinition();
         beanDefinition.setDestroyMethodName("close");
         beanDefinition.setPrimary(false);
 
         definitionBuilder.addPropertyValue("driverClassName", "org.h2.Driver");
-        definitionBuilder.addPropertyValue("jdbcUrl", "jdbc:mysql://1.1.1.1:3306/xxx?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull");
+        definitionBuilder
+            .addPropertyValue(
+                "jdbcUrl",
+                "jdbc:mysql://1.1.1.1:3306/xxx?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull");
         definitionBuilder.addPropertyValue("username", "sofa");
         definitionBuilder.addPropertyValue("password", "123456");
 
-        registry.registerBeanDefinition("manualDataSource", definitionBuilder.getRawBeanDefinition());
+        registry.registerBeanDefinition("manualDataSource",
+            definitionBuilder.getRawBeanDefinition());
     }
 
     @Override
-    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
+    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
+                                                                                   throws BeansException {
         // ignore
     }
 }
\ No newline at end of file