commit f5e94be6b1bc9c8a4b6a288efe37c03579fc3c60
Author: Liang Zhang <terrymanu@163.com>
Date:   Mon Oct 19 18:55:08 2020 +0800

    Remove default value of error handler (#1598)
    
    * refactor ElasticJobLiteAutoConfiguration
    
    * Remove default value of error handler

diff --git a/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.cn.md b/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.cn.md
index ab149414f..a47e0a8eb 100644
--- a/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.cn.md
+++ b/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.cn.md
@@ -47,19 +47,19 @@ Maven 坐标：
 
 可配置属性：
 
-| 属性名    | 说明        | 默认值                    |
-| -------- |:----------- |:------------------------ |
-| host     | TODO        | 无                       |
-| port     | TODO        | 无                       |
-| username | TODO        | 无                       |
-| password | TODO        | 无                       |
-| useSsl   | TODO        | 无                       |
-| subject  | TODO        | ElasticJob error message |
-| from     | TODO        | 无                       |
-| to       | TODO        | 无                       |
-| cc       | TODO        | 无                       |
-| bcc      | TODO        | 无                       |
-| debug    | TODO        | 无                       |
+| 属性名    | 说明        |
+| -------- |:----------- |
+| host     | TODO        |
+| port     | TODO        |
+| username | TODO        |
+| password | TODO        |
+| useSsl   | TODO        |
+| subject  | TODO        |
+| from     | TODO        |
+| to       | TODO        |
+| cc       | TODO        |
+| bcc      | TODO        |
+| debug    | TODO        |
 
 ## 企业微信通知策略
 
@@ -81,11 +81,11 @@ Maven 坐标：
 
 可配置属性：
 
-| 属性名                     | 说明        | 默认值    |
-| ------------------------- |:----------- |:-------- |
-| webhook                   | TODO        | 无        |
-| connectTimeoutMillisecond | TODO        | 3000 毫秒 |
-| readTimeoutMillisecond    | TODO        | 5000 毫秒 |
+| 属性名                     | 说明        |
+| ------------------------- |:----------- |
+| webhook                   | TODO        |
+| connectTimeoutMillisecond | TODO        |
+| readTimeoutMillisecond    | TODO        |
 
 ## 钉钉通知策略
 
@@ -107,10 +107,10 @@ Maven 坐标：
 
 可配置属性：
 
-| 属性名                     | 说明        | 默认值    |
-| ------------------------- |:----------- |:-------- |
-| webhook                   | TODO        | 无        |
-| keyword                   | TODO        | 无        |
-| secret                    | TODO        | 无        |
-| connectTimeoutMillisecond | TODO        | 3000 毫秒 |
-| readTimeoutMillisecond    | TODO        | 5000 毫秒 |
+| 属性名                     | 说明        |
+| ------------------------- |:----------- |
+| webhook                   | TODO        |
+| keyword                   | TODO        |
+| secret                    | TODO        |
+| connectTimeoutMillisecond | TODO        |
+| readTimeoutMillisecond    | TODO        |
diff --git a/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.en.md b/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.en.md
index 6ff98bd2a..c75fbb7a7 100644
--- a/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.en.md
+++ b/docs/content/user-manual/elasticjob-lite/configuration/built-in-strategy/error-handler.en.md
@@ -47,19 +47,19 @@ Maven POM:
 
 Configuration: 
 
-| Name     | Description | Default Value            |
-| -------- |:----------- |:------------------------ |
-| host     | TODO        | None                     |
-| port     | TODO        | None                     |
-| username | TODO        | None                     |
-| password | TODO        | None                     |
-| useSsl   | TODO        | None                     |
-| subject  | TODO        | ElasticJob error message |
-| from     | TODO        | None                     |
-| to       | TODO        | None                     |
-| cc       | TODO        | None                     |
-| bcc      | TODO        | None                     |
-| debug    | TODO        | None                     |
+| Name     | Description |
+| -------- |:----------- |
+| host     | TODO        |
+| port     | TODO        |
+| username | TODO        |
+| password | TODO        |
+| useSsl   | TODO        |
+| subject  | TODO        |
+| from     | TODO        |
+| to       | TODO        |
+| cc       | TODO        |
+| bcc      | TODO        |
+| debug    | TODO        |
 
 ## Wechat Enterprise Notification Strategy
 
@@ -81,11 +81,11 @@ Maven POM:
 
 Configuration: 
 
-| Name                      | Description | Default Value     |
-| ------------------------- |:----------- |:----------------- |
-| webhook                   | TODO        | None              |
-| connectTimeoutMillisecond | TODO        | 3000 milliseconds |
-| readTimeoutMillisecond    | TODO        | 5000 milliseconds |
+| Name                      | Description |
+| ------------------------- |:----------- |
+| webhook                   | TODO        |
+| connectTimeoutMillisecond | TODO        |
+| readTimeoutMillisecond    | TODO        |
 
 ## Dingtalk Notification Strategy
 
@@ -107,10 +107,10 @@ Maven POM:
 
 Configuration: 
 
-| Name                      | Description | Default Value     |
-| ------------------------- |:----------- |:----------------- |
-| webhook                   | TODO        | None              |
-| keyword                   | TODO        | None              |
-| secret                    | TODO        | None              |
-| connectTimeoutMillisecond | TODO        | 3000 milliseconds |
-| readTimeoutMillisecond    | TODO        | 5000 milliseconds |
+| Name                      | Description |
+| ------------------------- |:----------- |
+| webhook                   | TODO        |
+| keyword                   | TODO        |
+| secret                    | TODO        |
+| connectTimeoutMillisecond | TODO        |
+| readTimeoutMillisecond    | TODO        |