diff --git a/.gitignore b/.gitignore
index 02cfcc9..824ab1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 .*
 gradlew*
 build
-gradle
 
 !.gitignore
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 4355845..b1eda40 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,11 +1,12 @@
 buildscript {
     ext {
-        kotlin_version = '1.3.72'
+        kotlin_version = '1.7.0'
+        spring_version = "2.7.0"
     }
 
     repositories {
         mavenLocal()
-        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         mavenCentral()
     }
 
@@ -15,40 +16,38 @@ buildscript {
 }
 
 allprojects {
+    ext {
+        version '2.0'
+    }
+
     group 'com.synebula'
     version version
 }
 
 subprojects {
-    ext {
-        version '0.13.1'
-        spring_version = "2.3.0.RELEASE"
-    }
-
     buildscript {
         repositories {
             mavenLocal()
-            maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+            maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
             mavenCentral()
         }
     }
 
     repositories {
         mavenLocal()
-        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         mavenCentral()
     }
 
     apply plugin: 'idea'
     apply plugin: 'java'
     apply plugin: 'kotlin'
-    apply plugin: 'maven'
     apply plugin: 'maven-publish'
 
     dependencies {
-        compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-        compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-        testCompile group: 'junit', name: 'junit', version: '4.12'
+        api "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+        api "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
+        testApi group: 'junit', name: 'junit', version: '4.12'
     }
 
     sourceCompatibility = 1.8
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..87b738c
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..d494b61
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon May 18 17:21:26 CST 2020
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/settings.gradle b/settings.gradle
index 42a6a35..55f9af1 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,4 +1,4 @@
-rootProject.name = 'myths.gaea'
+rootProject.name = 'gaea'
 include 'src:gaea'
 include 'src:gaea.app'
 include 'src:gaea.mongo'
diff --git a/src/gaea.app/build.gradle b/src/gaea.app/build.gradle
index 9333a61..e4d0ae6 100644
--- a/src/gaea.app/build.gradle
+++ b/src/gaea.app/build.gradle
@@ -7,16 +7,16 @@ buildscript {
 apply plugin: 'kotlin-spring'
 
 dependencies {
-    compile project(":src:gaea")
-    compile("org.springframework.boot:spring-boot-starter-web:$spring_version")
-    compile("org.springframework.boot:spring-boot-starter-aop:$spring_version")
-    compile("org.springframework.boot:spring-boot-starter-mail:$spring_version")
-    compile("org.springframework.boot:spring-boot-starter-security:$spring_version")
-    compile group: 'net.sf.dozer', name: 'dozer', version: '5.5.1'
-    compile group: 'org.apache.poi', name: 'poi-ooxml', version: '5.0.0'
-    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
-    compile group: 'com.google.guava', name: 'guava', version: '30.1.1-jre'
-    compile group: 'com.auth0', name: 'java-jwt', version: '3.14.0'
+    api project(":src:gaea")
+    api("org.springframework.boot:spring-boot-starter-web:$spring_version")
+    api("org.springframework.boot:spring-boot-starter-aop:$spring_version")
+    api("org.springframework.boot:spring-boot-starter-mail:$spring_version")
+    api("org.springframework.boot:spring-boot-starter-security:$spring_version")
+    api group: 'net.sf.dozer', name: 'dozer', version: '5.5.1'
+    api group: 'org.apache.poi', name: 'poi-ooxml', version: '5.0.0'
+    api group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
+    api group: 'com.google.guava', name: 'guava', version: '30.1.1-jre'
+    api group: 'com.auth0', name: 'java-jwt', version: '3.14.0'
 }
 
 publishing {
diff --git a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/cmd/LazyCommandApp.kt b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/cmd/LazyCommandApp.kt
index 46abef3..da637dd 100644
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/cmd/LazyCommandApp.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/cmd/LazyCommandApp.kt
@@ -2,9 +2,7 @@ package com.synebula.gaea.app.cmd
 
 import com.synebula.gaea.data.serialization.json.IJsonSerializer
 import com.synebula.gaea.domain.model.IAggregateRoot
-import com.synebula.gaea.domain.service.ICommand
 import com.synebula.gaea.domain.service.ILazyService
-import com.synebula.gaea.domain.service.IService
 import com.synebula.gaea.log.ILogger
 import javax.annotation.Resource
 
diff --git a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/Logger.kt b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/Logger.kt
index ec4150d..b86ac2e 100644
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/Logger.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/Logger.kt
@@ -9,7 +9,7 @@ import java.util.concurrent.ConcurrentHashMap
 /**
  * 使用 log4j進行日志记录。
  *
- * @author reize
+ * @author alex
  * @version 0.0.1
  * @since 2016年9月18日 下午2:13:43
  */
diff --git a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/aop/AppAspect.kt b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/aop/AppAspect.kt
index ed07e8b..1c82838 100644
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/aop/AppAspect.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/aop/AppAspect.kt
@@ -72,11 +72,10 @@ abstract class AppAspect {
                 }
             }
             var message = "$moduleName - $funcName 异常"
-            if (ex is NoticeUserException) {
-                message = "$message: ${ex.message}"
+            message = if (ex is NoticeUserException) {
+                "$message: ${ex.message}"
             } else {
-                message = "$message。"
-
+                "$message。"
             }
             logger.error(
                 ex,
diff --git a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBus.kt b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBus.kt
similarity index 66%
rename from src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBus.kt
rename to src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBus.kt
index 8448054..7d26813 100644
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBus.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBus.kt
@@ -1,14 +1,14 @@
-package com.synebula.gaea.app.component
+package com.synebula.gaea.app.component.bus
 
 import com.google.common.eventbus.AsyncEventBus
 import com.google.common.eventbus.EventBus
-import com.synebula.gaea.event.IEvent
-import com.synebula.gaea.event.IEventBus
+import com.synebula.gaea.bus.IMessage
+import com.synebula.gaea.bus.IMessageBus
 import org.springframework.stereotype.Component
 import java.util.concurrent.Executors
 
 @Component
-class EventBus : IEventBus {
+class EventBus : IMessageBus {
 
     /**
      * 同步事件总线
@@ -30,12 +30,12 @@ class EventBus : IEventBus {
         asyncEventBus.unregister(obj)
     }
 
-    override fun publish(event: IEvent) {
-        eventBus.post(event)
+    override fun publish(message: IMessage) {
+        eventBus.post(message)
     }
 
-    override fun publishAsync(event: IEvent) {
-        asyncEventBus.post(event)
+    override fun publishAsync(message: IMessage) {
+        asyncEventBus.post(message)
     }
 
 }
diff --git a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBusSubscriberProcessor.kt b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBusSubscriberProcessor.kt
similarity index 83%
rename from src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBusSubscriberProcessor.kt
rename to src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBusSubscriberProcessor.kt
index 98226c4..6360801 100644
--- a/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/EventBusSubscriberProcessor.kt
+++ b/src/gaea.app/src/main/kotlin/com/synebula/gaea/app/component/bus/EventBusSubscriberProcessor.kt
@@ -1,7 +1,7 @@
-package com.synebula.gaea.app.component
+package com.synebula.gaea.app.component.bus
 
 import com.google.common.eventbus.Subscribe
-import com.synebula.gaea.event.IEventBus
+import com.synebula.gaea.bus.IMessageBus
 import org.springframework.beans.BeansException
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.beans.factory.config.BeanPostProcessor
@@ -14,7 +14,7 @@ class EventBusSubscriberProcessor : BeanPostProcessor {
 
     // 事件总线bean由Spring IoC容器负责创建，这里只需要通过@Autowired注解注入该bean即可使用事件总线
     @Autowired
-    var eventBus: IEventBus? = null
+    var messageBus: IMessageBus? = null
 
     @Throws(BeansException::class)
     override fun postProcessBeforeInitialization(bean: Any, beanName: String): Any {
@@ -28,13 +28,13 @@ class EventBusSubscriberProcessor : BeanPostProcessor {
         val methods: Array<Method> = bean.javaClass.methods
         for (method in methods) {
             // check the annotations on that method
-            val annotations: Array<Annotation> = method.getAnnotations()
+            val annotations: Array<Annotation> = method.annotations
             for (annotation in annotations) {
-                // if it contains the Subscribe annotation
+                // if it contains Subscribe annotation
                 if (annotation.annotationClass == Subscribe::class) {
                     // 如果这是一个Guava @Subscribe注解的事件监听器方法，说明所在bean实例
                     // 对应一个Guava事件监听器类，将该bean实例注册到Guava事件总线
-                    eventBus?.register(bean)
+                    messageBus?.register(bean)
                     return bean
                 }
             }
diff --git a/src/gaea.mongo/build.gradle b/src/gaea.mongo/build.gradle
index 1ba6df0..f0a51c4 100644
--- a/src/gaea.mongo/build.gradle
+++ b/src/gaea.mongo/build.gradle
@@ -1,6 +1,6 @@
 dependencies {
-    compile project(":src:gaea")
-    compile("org.springframework.boot:spring-boot-starter-data-mongodb:$spring_version")
+    api project(":src:gaea")
+    api("org.springframework.boot:spring-boot-starter-data-mongodb:$spring_version")
 }
 
 publishing {
diff --git a/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/MongoExt.kt b/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/MongoExt.kt
index 1c1349f..c75d204 100644
--- a/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/MongoExt.kt
+++ b/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/MongoExt.kt
@@ -55,7 +55,7 @@ fun Query.where(
                 list.add(tryRangeWhere(param.key, value, onFieldType))
             } else {
                 //判断执行查询子元素还是本字段
-                val field = if (where.children.isEmpty()) key else where.children
+                val field = where.children.ifEmpty { key }
                 var criteria = Criteria.where(field)
                 criteria = when (where.operator) {
                     Operator.eq -> criteria.`is`(value)
diff --git a/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/query/MongoQuery.kt b/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/query/MongoQuery.kt
index c32a19e..01bd5f6 100644
--- a/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/query/MongoQuery.kt
+++ b/src/gaea.mongo/src/main/kotlin/com/synebula/gaea/mongo/query/MongoQuery.kt
@@ -92,7 +92,7 @@ open class MongoQuery(var template: MongoTemplate, var logger: ILogger? = null)
             if (!validViewCollection || this.template.collectionExists(name))
                 name
             else {
-                throw RuntimeException("找不到名为[$table]的集合")
+                throw RuntimeException("找不到名为[${clazz.name}]的集合")
             }
         }
     }
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessage.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessage.kt
new file mode 100644
index 0000000..e560295
--- /dev/null
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessage.kt
@@ -0,0 +1,3 @@
+package com.synebula.gaea.bus
+
+interface IMessage
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/event/IEventBus.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessageBus.kt
similarity index 62%
rename from src/gaea/src/main/kotlin/com/synebula/gaea/event/IEventBus.kt
rename to src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessageBus.kt
index c0b6850..0f435e2 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/event/IEventBus.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/bus/IMessageBus.kt
@@ -1,6 +1,6 @@
-package com.synebula.gaea.event
+package com.synebula.gaea.bus
 
-interface IEventBus {
+interface IMessageBus {
 
     /**
      * 注册事件Listener
@@ -16,13 +16,13 @@ interface IEventBus {
 
     /**
      * 同步发布事件
-     * @param event 事件
+     * @param message 事件
      */
-    fun publish(event: IEvent)
+    fun publish(message: IMessage)
 
     /**
      * 异步发布事件
-     * @param event 事件
+     * @param message 事件
      */
-    fun publishAsync(event: IEvent)
+    fun publishAsync(message: IMessage)
 }
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/DateCode.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/DateCode.kt
index 4afe5e4..a21d4c1 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/DateCode.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/DateCode.kt
@@ -11,13 +11,13 @@ import java.util.*
  * 参数：年=y，月=M，日=d，时=H，分=m，秒=s，毫秒=S。位数最好使用默认最大长度。
  */
 class DateCode(pattern: String = "yyyyMMdd") : ICodeGenerator<Long> {
-    var formator = SimpleDateFormat()
+    var formatter = SimpleDateFormat()
 
     init {
-        formator.applyPattern(pattern)
+        formatter.applyPattern(pattern)
     }
 
     override fun generate(): Long {
-        return java.lang.Long.parseLong(formator.format(Date()))
+        return java.lang.Long.parseLong(formatter.format(Date()))
     }
 }
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/FixedRandomCode.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/FixedRandomCode.kt
index 001657b..4adceac 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/FixedRandomCode.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/FixedRandomCode.kt
@@ -1,6 +1,7 @@
 package com.synebula.gaea.data.code
 
 import java.util.*
+import kotlin.math.pow
 
 /**
  * 固定长度随机编号生成。
@@ -9,8 +10,8 @@ import java.util.*
  * @since 2016年10月24日 上午10:58:05
  */
 class FixedRandomCode(
-        //生成的随机编号长度。
-        var length: Int
+    //生成的随机编号长度。
+    var length: Int,
 ) : ICodeGenerator<String> {
 
     /**
@@ -32,12 +33,12 @@ class FixedRandomCode(
         var format = String.format("%s%d%dd", "%", 0, calcMaxLength)
         val count = this.length / calcMaxLength
         for (i in 0 until count) {
-            buffer.append(String.format(format, (random.nextDouble() * Math.pow(10.0, calcMaxLength.toDouble())).toInt()))
+            buffer.append(String.format(format, (random.nextDouble() * 10.0.pow(calcMaxLength.toDouble())).toInt()))
         }
         val last = this.length % calcMaxLength
         if (last != 0) {
             format = String.format("%s%d%dd", "%", 0, last)
-            buffer.append(String.format(format, (random.nextDouble() * Math.pow(10.0, last.toDouble())).toInt()))
+            buffer.append(String.format(format, (random.nextDouble() * 10.0.pow(last.toDouble())).toInt()))
         }
         return buffer.toString()
     }
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/SnowflakeCode.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/SnowflakeCode.kt
index 3e1c6f1..faa5ea7 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/SnowflakeCode.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/code/SnowflakeCode.kt
@@ -13,7 +13,7 @@ package com.synebula.gaea.data.code
  * 0 - 0000000000 0000000000 0000000000 0000000000 0 - 00000 - 00000 - 000000000000 <br></br>
  * 1位标识，由于long基本类型在Java中是带符号的，最高位是符号位，正数是0，负数是1，所以id一般是正数，最高位是0<br></br>
  * 41位时间截(毫秒级)，注意，41位时间截不是存储当前时间的时间截，而是存储时间截的差值（当前时间截 - 开始时间截)<br></br>
- * 得到的值），这里的的开始时间截，一般是我们的id生成器开始使用的时间，由我们程序来指定的（如下下面程序Snowflake类的twepoch属性）。<br></br>
+ * 得到的值），这里的的开始时间截，一般是我们的id生成器开始使用的时间，由我们程序来指定的（如下下面程序Snowflake类的origin属性）。<br></br>
  * 41位的时间截，可以使用69年，年T = (1L << 41) / (1000L * 60 * 60 * 24 * 365) = 69 <br></br>
  * 10位的数据机器位，可以部署在1024个节点，包括5位datacenter和5位worker <br></br>
  * 12位序列，毫秒内的计数，12位的计数顺序号支持每个节点每毫秒(同一机器，同一时间截)产生4096个ID序号<br></br>
@@ -35,7 +35,7 @@ open class SnowflakeCode(
     /**
      * 开始时间截 (2018-01-01)
      */
-    private val twepoch = 1514736000000L
+    private val origin = 1514736000000L
 
     /**
      * 机器id所占的位数
@@ -142,7 +142,7 @@ open class SnowflakeCode(
         lastTimestamp = current
 
         //移位并通过或运算拼到一起组成64位的ID
-        return (current - twepoch shl timestampLeftShift
+        return (current - origin shl timestampLeftShift
                 or (datacenter shl datacenterShift)
                 or (worker shl workerShift)
                 or sequence)
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/data/date/DateTime.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/data/date/DateTime.kt
index 053b4a9..ef6ee10 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/data/date/DateTime.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/data/date/DateTime.kt
@@ -275,7 +275,6 @@ class DateTime() : Comparable<DateTime> {
      * @return true or false
      */
     fun isBetween(start: DateTime, end: DateTime): Boolean {
-        //return this in start..end
         return start.dateNoTime.compareTo(this.dateNoTime) * this.dateNoTime.compareTo(end.dateNoTime) >= 0
     }
 
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/AggregateRecord.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/AggregateRecord.kt
deleted file mode 100644
index 77b1c3f..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/AggregateRecord.kt
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.synebula.gaea.domain.model
-
-import java.util.*
-
-/**
- * 记录聚合根
- * 聚合根外添加了创建和修改的人\时间信息
- */
-abstract class AggregateRecord<TKey> : AggregateRoot<TKey>() {
-    var creator: String? = null
-    var creatorName: String? = null
-    var created: Date = Date()
-        set(value) {
-            field = value
-            modified = value
-        }
-
-    var modifier: String? = null
-    var modifierName: String? = null
-    var modified: Date = Date()
-}
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexAggregateRoot.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexAggregateRoot.kt
deleted file mode 100644
index 48e25fc..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexAggregateRoot.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-package com.synebula.gaea.domain.model.complex
-
-abstract class ComplexAggregateRoot<TKey, TSecond> : ComplexEntity<TKey, TSecond>(), IComplexAggregateRoot<TKey, TSecond>
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexEntity.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexEntity.kt
deleted file mode 100644
index 4d734e9..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/ComplexEntity.kt
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.synebula.gaea.domain.model.complex
-
-
-abstract class ComplexEntity<TKey, TSecond> : IComplexEntity<TKey, TSecond> {
-}
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexAggregateRoot.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexAggregateRoot.kt
deleted file mode 100644
index 487dc15..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexAggregateRoot.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-package com.synebula.gaea.domain.model.complex
-
-/**
- * 继承本接口，说明对象为聚合根。
- *
- * @param <TKey> 主键的类型。
- * @author alex
- */
-interface IComplexAggregateRoot<TKey, TSecond> : IComplexEntity<TKey, TSecond>
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexEntity.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexEntity.kt
deleted file mode 100644
index 0bbca4d..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/model/complex/IComplexEntity.kt
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.synebula.gaea.domain.model.complex
-
-import com.synebula.gaea.domain.model.IEntity
-
-interface IComplexEntity<TKey, TSecond> : IEntity<TKey> {
-    var secondary: TSecond?
-}
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/record/Record.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/record/Record.kt
new file mode 100644
index 0000000..61ad642
--- /dev/null
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/record/Record.kt
@@ -0,0 +1,21 @@
+package com.synebula.gaea.domain.record
+
+import java.util.*
+
+
+/**
+ * 记录信息
+ * 添加了创建和修改的人\时间信息
+ */
+abstract class Record<TKey> {
+
+    //记录增加信息
+    var creator: String? = null
+    var creatorName: String? = null
+    var createTime: Date = Date()
+
+    //记录修改信息
+    var modifier: String? = null
+    var modifierName: String? = null
+    var modifyTime: Date = Date()
+}
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Command.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Command.kt
index 2c07161..6ac0eb1 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Command.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/Command.kt
@@ -8,5 +8,6 @@ package com.synebula.gaea.domain.service
  * @since 2020-05-15
  */
 open class Command : ICommand {
+    override var payload = ""
     override var timestamp = 0L
 }
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/ICommand.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/ICommand.kt
index 41e4512..fe3543b 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/ICommand.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/ICommand.kt
@@ -8,6 +8,12 @@ package com.synebula.gaea.domain.service
  * @since 2020-05-15
  */
 interface ICommand {
+
+    /**
+     * 命令载荷, 实际的业务数据
+     */
+    var payload: String
+
     /**
      * 时间戳。
      */
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/LazyService.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/LazyService.kt
index a0f6f4b..2e49652 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/LazyService.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/domain/service/LazyService.kt
@@ -1,6 +1,5 @@
 package com.synebula.gaea.domain.service
 
-import com.synebula.gaea.data.IObjectConverter
 import com.synebula.gaea.data.message.DataMessage
 import com.synebula.gaea.data.message.Message
 import com.synebula.gaea.domain.model.IAggregateRoot
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/event/IEvent.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/event/IEvent.kt
deleted file mode 100644
index 59132cb..0000000
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/event/IEvent.kt
+++ /dev/null
@@ -1,4 +0,0 @@
-package com.synebula.gaea.event
-
-interface IEvent {
-}
\ No newline at end of file
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassPath.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassPath.kt
index 7aa60b5..90cbd6f 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassPath.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassPath.kt
@@ -34,10 +34,11 @@ object ClassPath {
         // 判断路径最后一个字符是不是"/"，如果不是加上
         path = if (path.lastIndexOf("/") != path.length - 1) "$path/" else path
 
-        var resources: Enumeration<URL>? = null
+        val resources: Enumeration<URL>?
         try {
             resources = ClassLoaderContext.get().getResources(path)
-        } catch (e: IOException) {
+        } catch (ex: IOException) {
+            throw RuntimeException(ex)
         }
 
         while (resources!!.hasMoreElements()) {
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassScanner.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassScanner.kt
index 3b03ef0..1cb3474 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassScanner.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/io/scan/ClassScanner.kt
@@ -30,7 +30,8 @@ class ClassScanner(private var packageName: String) {
     /**
      * 文件过滤器
      */
-    private val fileFilter = FileFilter { file -> file.isDirectory || file.name.endsWith(".class") || file.name.endsWith(".jar") }
+    private val fileFilter =
+        FileFilter { file -> file.isDirectory || file.name.endsWith(".class") || file.name.endsWith(".jar") }
 
 
     /**
@@ -81,12 +82,15 @@ class ClassScanner(private var packageName: String) {
                 val files = scanDirectory(realPath)
                 for (file in files) {
                     val fileName = file.toString()
-                    if (fileName.contains(".jar") && !fileName.endsWith(".class"))
+                    if (fileName.contains(".jar") && !fileName.endsWith(".class")) {
                         scanJar(file)
-                    else if (fileName.endsWith(".class"))
-                        scanClass(realPath, file)
+                    }
+//                    else if (fileName.endsWith(".class")) {
+//                    }
+                    scanClass(realPath, file)
                 }
-            } catch (e: UnsupportedEncodingException) {
+            } catch (ex: UnsupportedEncodingException) {
+                throw ex
             }
         }
     }
@@ -145,6 +149,7 @@ class ClassScanner(private var packageName: String) {
             }
             jar.close()
         } catch (ex: Throwable) {
+            throw ex
         }
 
     }
@@ -191,7 +196,7 @@ class ClassScanner(private var packageName: String) {
                     }
                 }
             } catch (ex: Throwable) {
-
+                throw ex
             }
 
         }
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/Level.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/Level.kt
index 429ad23..e636cf5 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/Level.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/Level.kt
@@ -2,25 +2,28 @@ package com.synebula.gaea.log
 
 /**
  * 日志等级
- * @author Looly
  */
 enum class Level {
     /**
      * 'TRACE' log level.
      */
     TRACE,
+
     /**
      * 'DEBUG' log level.
      */
     DEBUG,
+
     /**
      * 'INFO' log level.
      */
     INFO,
+
     /**
      * 'WARN' log level.
      */
     WARN,
+
     /**
      * 'ERROR' log level.
      */
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IDebugLogger.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IDebugLogger.kt
index 5a1cbb1..ba80a59 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IDebugLogger.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IDebugLogger.kt
@@ -3,7 +3,6 @@ package com.synebula.gaea.log.logger
 /**
  * DEBUG级别日志接口
  *
- * @author Looly
  */
 interface IDebugLogger {
     /**
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IErrorLogger.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IErrorLogger.kt
index c561a55..5fb200c 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IErrorLogger.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IErrorLogger.kt
@@ -2,7 +2,6 @@ package com.synebula.gaea.log.logger
 
 /**
  * ERROR级别日志接口
- * @author Looly
  */
 interface IErrorLogger {
     /**
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IInfoLogger.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IInfoLogger.kt
index fed35bd..453ade2 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IInfoLogger.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IInfoLogger.kt
@@ -2,7 +2,6 @@ package com.synebula.gaea.log.logger
 
 /**
  * INFO级别日志接口
- * @author Looly
  */
 interface IInfoLogger {
     /**
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/ITraceLogger.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/ITraceLogger.kt
index ed29589..c4b89c8 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/ITraceLogger.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/ITraceLogger.kt
@@ -3,7 +3,6 @@ package com.synebula.gaea.log.logger
 /**
  * TRACE级别日志接口
  *
- * @author Looly
  */
 interface ITraceLogger {
     /**
diff --git a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IWarnLogger.kt b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IWarnLogger.kt
index 803aded..731e21a 100644
--- a/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IWarnLogger.kt
+++ b/src/gaea/src/main/kotlin/com/synebula/gaea/log/logger/IWarnLogger.kt
@@ -2,7 +2,6 @@ package com.synebula.gaea.log.logger
 
 /**
  * WARN级别日志接口
- * @author Looly
  */
 interface IWarnLogger {
     /**