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增加 spring 定时任务用例

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罗祥 2018-12-27 15:08:24 +08:00
parent ea0cbeace0
commit 71daa7857e
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61
spring/spring-scheduling-annotation/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.heibaiying</groupId>
<artifactId>spring-scheduling-annotation</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring-base-version>5.1.3.RELEASE</spring-base-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>

23
spring/spring-scheduling-annotation/src/main/java/com/heibaiying/config/DispatcherServletInitializer.java Normal file
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package com.heibaiying.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
/**
* @author : heibaiying
*/
public class DispatcherServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
protected Class<?>[] getRootConfigClasses() {
return new Class[0];
}
protected Class<?>[] getServletConfigClasses() {
return new Class[]{ServletConfig.class};
}
protected String[] getServletMappings() {
return new String[]{"/"};
}
}

93
spring/spring-scheduling-annotation/src/main/java/com/heibaiying/config/ServletConfig.java Normal file
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package com.heibaiying.config;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import javax.annotation.PreDestroy;
import java.lang.reflect.Method;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
/**
* @author : heibaiying
* spring 主配置类
*/
@Configuration
@EnableWebMvc
@EnableScheduling //启用Spring的计划任务执行功能
@EnableAsync //启用Spring的异步方法执行功能
@ComponentScan(basePackages = {"com.heibaiying.task"})
public class ServletConfig implements WebMvcConfigurer, AsyncConfigurer, SchedulingConfigurer {
private ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
// 任务执行器线程池配置
@Override
public Executor getAsyncExecutor() {
executor.setCorePoolSize(5);
executor.setMaxPoolSize(10);
executor.setQueueCapacity(100);
executor.setThreadNamePrefix("MyExecutor-");
executor.initialize();
return executor;
}
// 这个方法可以监听到异步程序发生的错误
@Override
public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
return new AsyncUncaughtExceptionHandler() {
@Override
public void handleUncaughtException(Throwable ex, Method method, Object... params) {
System.out.println(method.getName() + "发生错误:" + ex.getMessage());
}
};
}
// 如果程序结束，需要关闭线程池 不然程序无法完全退出 只能kill才能完全退出
@PreDestroy
public void destroy() {
if (executor != null) {
executor.shutdown();
}
}
// 调度程序线程池配置
@Override
public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
taskRegistrar.setScheduler(taskExecutor());
}
// 如果程序结束，需要关闭线程池
@Bean(destroyMethod = "shutdown")
public Executor taskExecutor() {
return Executors.newScheduledThreadPool(50);
}
/*关于调度程序线程池作用说明
*
* 按照例子 我们有methodA 、 methodB 、methodC 三个方法 其中 methodB 是耗时的方法,且不支持异步
* 如果不声明调度程序线程池 则methodB 会阻塞 methodA 、methodC 方法的执行 因为调度程序是单线程的
*/
/*关于任务执行线程池作用说明
*
* 按照例子 如果我们声明 methodB 是按照 fixedRate=5000 方法执行的 ，理论上不管任务耗时多久，任务都应该是
* 每5秒执行一次，但是实际上任务是被加入执行队列，也不会立即被执行，因为默认执行任务是单线程的，这个时候需要开启
* @EnableAsync 并指定方法是 @Async 异步的，并且配置执行任务线程池(如果不配置就使用默认的线程池配置)
*/
/*配置建议 如果不需要细粒度的控制 以上代码配置都不是必须的 但是建议耗时方法采用异步执行*/
}

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spring/spring-scheduling-annotation/src/main/java/com/heibaiying/task/Task.java Normal file
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package com.heibaiying.task;
import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.time.LocalDateTime;
/**
* @author : heibaiying
*/
@Component
public class Task {
/**
* 基于间隔的触发器，其中间隔是从上一个任务的 完成时间 开始计算, 时间单位值以毫秒为单位。
*/
@Scheduled(fixedDelay = 5000, initialDelay = 1000)
public void methodA() {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodA方法执行", LocalDateTime.now()));
}
/**
* 基于间隔的触发器，其中间隔是从上一个任务的 开始时间 开始测量的。
*/
@Scheduled(fixedRate = 5000)
@Async
public void methodB() throws InterruptedException {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodB方法执行", LocalDateTime.now()));
Thread.sleep(10 * 1000);
}
@Scheduled(cron = "0/10 * * * * ?")
public void methodC() {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodC方法执行", LocalDateTime.now()));
}
}

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spring/spring-scheduling/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.heibaiying</groupId>
<artifactId>spring-scheduling</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring-base-version>5.1.3.RELEASE</spring-base-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>

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spring/spring-scheduling/src/main/java/com/heibaiying/task/Task.java Normal file
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package com.heibaiying.task;
import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import java.time.LocalDateTime;
/**
* @author : heibaiying
* @description :
*/
public class Task {
/**
* 基于间隔的触发器，其中间隔是从上一个任务的 完成时间 开始计算, 时间单位值以毫秒为单位。
*/
@Scheduled(fixedDelay = 5000, initialDelay = 1000)
public void methodA() {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodA方法执行", LocalDateTime.now()));
}
/**
* 基于间隔的触发器，其中间隔是从上一个任务的 开始时间 开始测量的。
*/
@Scheduled(fixedRate = 5000)
@Async
public void methodB() throws InterruptedException {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodB方法执行", LocalDateTime.now()));
Thread.sleep(10 * 1000);
}
@Scheduled(cron = "0/10 * * * * ?")
public void methodC() {
Thread thread = Thread.currentThread();
System.out.println(String.format("线程名称：%s ; 线程ID：%s ; 调用方法：%s ; 调用时间：%s",
thread.getName(), thread.getId(), "methodC方法执行", LocalDateTime.now()));
}
}

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spring/spring-scheduling/src/main/resources/springApplication.xml Normal file
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<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd">
<!-- 开启注解包扫描-->
<context:component-scan base-package="com.heibaiying.*"/>
<!-- 开启注解驱动 -->
<mvc:annotation-driven/>
<!--配置定时任务-->
<bean id="task" class="com.heibaiying.task.Task"/>
<task:scheduled-tasks scheduler="myScheduler">
<!--基于间隔的触发器，其中间隔是从上一个任务的 完成时间 开始计算, 时间单位值以毫秒为单位。-->
<task:scheduled ref="task" method="methodA" fixed-delay="5000" initial-delay="1000"/>
<!--基于间隔的触发器，其中间隔是从上一个任务的 开始时间 开始测量的。-->
<task:scheduled ref="task" method="methodB" fixed-rate="5000"/>
<!-- cron 表达式-->
<task:scheduled ref="task" method="methodC" cron="0/10 * * * * ?"/>
</task:scheduled-tasks>
<!--定义任务调度器线程池的大小-->
<task:scheduler id="myScheduler" pool-size="10"/>
<!--定义任务执行器的线程池大小、等待队列的容量、和拒绝策略-->
<task:executor
id="executorWithPoolSizeRange"
pool-size="5-25"
queue-capacity="100"
rejection-policy="CALLER_RUNS"/>
<!--拒绝策略默认值为ABORT
CALLER_RUNS来限制入栈任务
DISCARD删除当前任务
DISCARD_OLDEST将任务放在队列的头部。-->
<!--允许在任何Spring管理的对象上检测@Async和@Scheduled注释, 如果存在，将生成用于异步执行带注释的方法的代理。-->
<task:annotation-driven/>
<!--关于调度程序线程池作用说明
按照例子 我们有methodA 、 methodB 、methodC 三个方法 其中 methodB 是耗时的方法
如果不声明调度程序线程池 则methodB 会阻塞 methodA 、methodC 方法的执行 因为调度程序是单线程的
-->
<!--关于任务执行线程池作用说明
按照例子 如果我们声明 methodB 是按照 fixedRate=5000 方法执行的 ，理论上不管任务耗时多久，任务都应该是
每5秒执行一次，但是实际上任务是被加入执行队列，也不会立即被执行，因为默认执行任务是单线程的，这个时候需要开启
@EnableAsync 并指定方法是 @Async 异步的，并且配置执行任务线程池(如果不配置就使用默认的线程池配置)
-->
</beans>

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spring/spring-scheduling/src/main/webapp/WEB-INF/web.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--配置spring前端控制器-->
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springApplication.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

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spring/spring-scheduling/src/main/webapp/index.jsp Normal file
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
hello spring scheduling!
</body>
</html>

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spring/spring-websocket/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.heibaiying</groupId>
<artifactId>spring-websocket</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring-base-version>5.1.3.RELEASE</spring-base-version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-base-version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<!--spring webSocket 的依赖包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-websocket</artifactId>
<version>5.1.3.RELEASE</version>
</dependency>
</dependencies>
</project>

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spring/spring-websocket/src/main/java/com/heibaiying/websocket/CustomHandshakeInterceptor.java Normal file
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package com.heibaiying.websocket;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;
import java.net.InetSocketAddress;
import java.util.Map;
/**
* @author : heibaiying
* @description : 握手拦截器
*/
public class CustomHandshakeInterceptor extends HttpSessionHandshakeInterceptor {
/*@Override
public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) throws Exception {
InetSocketAddress remoteAddress = request.getRemoteAddress();
System.out.println(remoteAddress);
return true;
}*/
@Override
public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) throws Exception {
return super.beforeHandshake(request, response, wsHandler, attributes);
}
}

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spring/spring-websocket/src/main/java/com/heibaiying/websocket/CustomerHandler.java Normal file
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package com.heibaiying.websocket;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;
import java.time.LocalDateTime;
/**
* @author : heibaiying
* @description : 自定义消息处理器
*/
public class CustomerHandler extends TextWebSocketHandler {
@Override
protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
String stringMessage = new String(message.asBytes());
System.out.println("服务端收到消息：" + stringMessage);
session.sendMessage(new TextMessage(stringMessage+LocalDateTime.now()));
}
}

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spring/spring-websocket/src/main/resources/springApplication.xml Normal file
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<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:websocket="http://www.springframework.org/schema/websocket"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/websocket
http://www.springframework.org/schema/websocket/spring-websocket.xsd">
<!-- 开启注解包扫描-->
<context:component-scan base-package="com.heibaiying.*"/>
<!--使用默认的Servlet来响应静态文件 -->
<mvc:default-servlet-handler/>
<!-- 开启注解驱动 -->
<mvc:annotation-driven/>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
id="internalResourceViewResolver">
<!-- 前缀 -->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!-- 后缀 -->
<property name="suffix" value=".jsp"/>
</bean>
<!--配置webSocket-->
<bean id="customerHandler" class="com.heibaiying.websocket.CustomerHandler"/>
<websocket:handlers>
<!--指定webSocket 地址-->
<websocket:mapping path="/socket" handler="customerHandler"/>
<!--webSocket握手-->
<websocket:handshake-interceptors>
<bean class="com.heibaiying.websocket.CustomHandshakeInterceptor"/>
</websocket:handshake-interceptors>
</websocket:handlers>
</beans>

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spring/spring-websocket/src/main/webapp/WEB-INF/web.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--配置spring前端控制器-->
<servlet>
<servlet-name>springMvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springApplication.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

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spring/spring-websocket/src/main/webapp/index.jsp Normal file
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<input id="message" type="text">
<button id="btn">发送消息</button>
<div id="show">
</div>
<script>
let btn = document.getElementById("btn");
let message = document.getElementById("message");
let show = document.getElementById("show");
let ws = new WebSocket("ws://localhost:8080/socket");
ws.onopen = function () {
alert("websocket已经连接");
};
ws.onmessage = function (evt) {
let node = document.createElement("div");
node.innerHTML = "<h5>" + evt.data + "</h5>";
show.appendChild(node);
};
btn.addEventListener("click", function () {
let data = message.value;
if (data) {
ws.send(data);
} else {
alert("请输入消息后发送");
}
message.value = "";
});
</script>
</body>
</html>