Spring异步任务处理，@Async的配置和使用-优快云博客

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spring-tasks

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"
	xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
		http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

	<!-- 自动注解 -->
	<task:annotation-driven />
	<!-- 数据收集异步处理的线程池 -->
	<task:executor id="dcExecutor" pool-size="15-300"
		queue-capacity="100" keep-alive="5" rejection-policy="DISCARD" />
	<!-- 上下车提醒异步处理的线程池 -->
	<task:executor id="remind" pool-size="15-500"
	queue-capacity="1000" keep-alive="5" rejection-policy="DISCARD" />
	<!-- 消息推送异步处理的线程池 -->
	<task:executor id="jpushExecutor" pool-size="15-500"
	queue-capacity="1000" keep-alive="5" rejection-policy="DISCARD" />
</beans>

pool-size="1-4"，表示线程池活跃的线程数为1，最大线程数为4；