Spring教程____Spring线程池_ThreadPoolTaskExecutor的配置和使用

//1.搭建个简单的springmvc框架框架结构

2.applicationContext配置

<?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:p="http://www.springframework.org/schema/p"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:c="http://www.springframework.org/schema/c"xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"><!-- 加载资源配置文件    --><bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations"><list><value>classpath:jdbc.properties</value></list></property></bean>  <!-- 使用注解的方式装配置bean --><context:annotation-config /><context:component-scan base-package="com"></context:component-scan><!-- 通过注解，把URL映射到Controller上，该标签默认注册DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter --><mvc:annotation-driven /><!-- 配置dbcp数据源  配置dbcp数据源  配置dbcp数据源  配置dbcp数据源  配置dbcp数据源  配置dbcp数据源  配置dbcp数据源 --><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"><property name="driverClassName" value="${jdbc.driverClassName}" /><property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /></bean><!-- 配置事物管理 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><!-- Spring线程池 --><bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor"><!-- 核心线程数 --><property name="corePoolSize" value="5" /><!-- 最大线程数 --><property name="maxPoolSize" value="10" /><!-- 队列最大长度 >=mainExecutor.maxSize --><property name="queueCapacity" value="25" /><!-- 线程池维护线程所允许的空闲时间 --><property name="keepAliveSeconds" value="3000" /><!-- 线程池对拒绝任务(无线程可用)的处理策略 ThreadPoolExecutor.CallerRunsPolicy策略 ,调用者的线程会执行该任务,如果执行器已关闭,则丢弃. --><property name="rejectedExecutionHandler"><bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" /></property></bean><!-- springconfigEnd  springconfigEnd  springconfigEnd  springconfigEnd  springconfigEnd  springconfigEnd  springconfigEnd springconfigEnd--></beans>

3.spring-servlet的配置

<?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:p="http://www.springframework.org/schema/p"xmlns:context="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"><!-- 默认的视图解析器 --><bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/pages/" /><property name="suffix" value=".jsp"></property></bean></beans>

3.web.xml配置

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">  <display-name>springmvc</display-name>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:spring-context.xml</param-value>  </context-param>  <servlet>    <servlet-name>DispatcherServlet</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:spring-servlet.xml</param-value>    </init-param>  </servlet>  <servlet-mapping>    <servlet-name>DispatcherServlet</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping></web-app>

//测试sprng线程池的类

package com.spring.task.controller;/** * @author King 根据姓名查询抢到车票的信息 */public class QueryTicket extends Thread {// 抢票人姓名private String username;//轮序的次数private int loopstep=1;//每次间隔的时间(秒)private int looptime=1;//构造器public QueryTicket(String username, int loopstep, int looptime) {super();this.username = username;this.loopstep = loopstep;this.looptime = looptime;}@Overridepublic void run() {for (int i = 0; i < loopstep; i++) {//执行哪个类的哪个方法System.out.println("sql查询策略(执行3次每次间隔5秒)");System.out.println("_______姓名:"+username+"_第"+(i+1)+"次抢票状态:未抢到");try {Thread.sleep(looptime*1000L);} catch (InterruptedException e) {e.printStackTrace();}}}}

package com.spring.task.controller;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controller@RequestMapping("/task")public class ThreadPoolController {@Autowired    privateThreadPoolTaskExecutor executor;@RequestMapping("/loopQueryTicket.do")public void loopQueryTicket(){QueryTicket queryTicket=new QueryTicket("zhagnsan", 3, 5);executor.execute(queryTicket);}}

//运行结果

//源码地址:http://pan.baidu.com/s/1o8wr7S2