Spring線程池ThreadPoolTaskExecutor的配置和使用

//1.搭建個簡單的springmvc框架框架結構

 

 

 

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.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

<!-- 加載資源配置文件 -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
</list>
</property>
</bean>
<!-- 使用注解的方式裝配置bean -->
<context:annotation-config />
<context:component-scan base-package="com"></context:component-scan>
<!-- 通過注解，把URL映射到Controller上，該標簽默認注冊DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter -->
<mvc:annotation-driven />

<!-- 配置dbcp數據源 配置dbcp數據源 配置dbcp數據源 配置dbcp數據源 配置dbcp數據源 配置dbcp數據源 配置dbcp數據源 -->
<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線程池 -->
<bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<!-- 核心線程數 -->
<property name="corePoolSize" value="5" />
<!-- 最大線程數 -->
<property name="maxPoolSize" value="10" />
<!-- 隊列最大長度 >=mainExecutor.maxSize -->
<property name="queueCapacity" value="25" />
<!-- 線程池維護線程所允許的空閑時間 -->
<property name="keepAliveSeconds" value="3000" />
<!-- 線程池對拒絕任務(無線程可用)的處理策略 ThreadPoolExecutor.CallerRunsPolicy策略 ,調用者的線程會執行該任務,如果執行器已關閉,則丟棄. -->
<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.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<!-- 默認的視圖解析器 -->
<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>

//測試sprng線程池的類
package com.spring.task.controller;

/**
* @author King 根據姓名查詢搶到車票的信息
*/
public class QueryTicket extends Thread {

// 搶票人姓名
private String username;

//輪序的次數
private int loopstep=1;
//每次間隔的時間(秒)
private int looptime=1;

//構造器
public QueryTicket(String username, int loopstep, int looptime) {
super();
this.username = username;
this.loopstep = loopstep;
this.looptime = looptime;
}


@Override
public void run() {
for (int i = 0; i < loopstep; i++) {
//執行哪個類的哪個方法
System.out.println("sql查詢策略(執行3次每次間隔5秒)");
System.out.println("_______姓名:"+username+"_第"+(i+1)+"次搶票狀態:未搶到");
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
private ThreadPoolTaskExecutor executor;

@RequestMapping("/loopQueryTicket.do")
public void loopQueryTicket(){
QueryTicket queryTicket=new QueryTicket("zhagnsan", 3, 5);
executor.execute(queryTicket);
}
}

//運行結果

 

 

//源碼地址:http://pan.baidu.com/s/1o8wr7S2