diff --git a/docs/scheduled.md b/docs/scheduled.md
index 90c46a78f..465fa1fd2 100644
--- a/docs/scheduled.md
+++ b/docs/scheduled.md
@@ -40,11 +40,45 @@
     }
 ```
 
-## 定时配置
+## 基本配置
 ```xml
     <!--
         全局Serivce的定时任务设置，没配置该节点将自动创建一个。
         enabled： 是否开启缓存功能。默认: true
     -->
     <schedule enabled="true"/>
+```
+
+
+## 使用Xxl-Job
+&emsp;&emsp;Schedule可以采用第三方实现, 官方扩展包```redkale-plugins```提供了xxl-job实现，且不依赖xxl-job包。
+
+### pom依赖
+```xml
+    <dependency>
+        <groupId>org.redkalex</groupId>
+        <artifactId>redkale-plugins</artifactId>
+        <version>2.8.0</version>
+    </dependency> 
+```
+
+### 配置文件
+```xml
+    <schedule enabled="true">    
+        <xxljob addresses="http://localhost:8080/xxl-job-admin" 
+                executorName="redkale-examples" 
+                ip="127.0.0.1" <!-- 可选 -->
+                port="5678"    <!-- 可选 -->
+                accessToken="default_token" />
+    </schedule>
+```
+
+### 使用方法
+```java
+    @Scheduled(name = "testTask")
+    public void runTask(ScheduleEvent event) {
+        System.out.println("xxl-job参数param: " + event.getString("param"));
+        System.out.println("xxl-job参数index: " + event.getInteger("index"));
+        System.out.println("xxl-job参数total: " + event.getInteger("total"));
+    }
 ```
\ No newline at end of file
diff --git a/src/main/java/org/redkale/boot/Application.java b/src/main/java/org/redkale/boot/Application.java
index 21c751b92..28a0d383a 100644
--- a/src/main/java/org/redkale/boot/Application.java
+++ b/src/main/java/org/redkale/boot/Application.java
@@ -881,7 +881,7 @@ public final class Application {
             listener.onPreStart(this);
         }
         for (ModuleEngine item : moduleEngines) {
-            item.onAppPostInit();
+            item.onAppPreStart();
         }
     }
 
diff --git a/src/main/java/org/redkale/schedule/ScheduleEvent.java b/src/main/java/org/redkale/schedule/ScheduleEvent.java
index 33d393f5a..67581fe25 100644
--- a/src/main/java/org/redkale/schedule/ScheduleEvent.java
+++ b/src/main/java/org/redkale/schedule/ScheduleEvent.java
@@ -3,6 +3,7 @@
  */
 package org.redkale.schedule;
 
+import java.lang.reflect.Type;
 import java.util.HashMap;
 import java.util.Map;
 import org.redkale.convert.json.JsonConvert;
@@ -36,6 +37,11 @@ public final class ScheduleEvent {
         return (T) map.get(name);
     }
 
+    public <T> T getJson(String name, Type type) {
+        Object obj = get(name);
+        return obj == null ? null : JsonConvert.root().convertFrom(type, obj.toString());
+    }
+
     public String getString(String name) {
         return Utility.convertValue(String.class, map.get(name));
     }