Spring教程____Spring线程池_ThreadPoolTaskExecutor的配置和使用

超、凢脫俗 2022-06-07 04:18 221阅读 0赞

//1.搭建个简单的springmvc框架框架结构

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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">
    	
    	
    	<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    		<property name="locations">
    			<list>
    				<value>classpath:jdbc.properties</value>
    			</list>
    		</property>
    	</bean>  
    	
    	<context:annotation-config />
    	<context:component-scan base-package="com"></context:component-scan>
    	
    	<mvc:annotation-driven />
    	
    	
    	<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>
    
    	
    	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource" />
    	</bean>
    
    
    	
    	<bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
    		
    		<property name="corePoolSize" value="5" />
    		
    		<property name="maxPoolSize" value="10" />
    		
    		<property name="queueCapacity" value="25" />
    		
    		<property name="keepAliveSeconds" value="3000" />
    		
    		<property name="rejectedExecutionHandler">
    			<bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />
    		</property>
    	</bean>
    
    
    </beans>

3.spring-servlet的配置

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

//运行结果

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

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[Center 1]: /images/20220607/aa2f732369794a179d291db231fdb7f6.png