03 spring整合elastic-job

1 xml配置

1.1 整合步骤

1. 新建一个web项目
2. 导入jar包
   • spring5相关的，elastic-job，lombok等
3. web.xml配置listener，监听Spring容器
4. 在xml中配置zk注册中心，配置simple作业

1. 2 开始整合

新建一个web模块：spring-elatic-job

web.xml: 配置spring上下文监听器

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>spring-elastic-job</display-name>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:spring-config.xml</param-value>
  </context-param>
  
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
</web-app>

引入依赖

<properties>
    <spring.version>5.1.5.RELEASE</spring.version>
    <elastic.job.version>2.1.5</elastic.job.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>com.dangdang</groupId>
        <artifactId>elastic-job-lite-core</artifactId>
        <version>${elastic.job.version}</version>
    </dependency>
    <dependency>
        <groupId>com.dangdang</groupId>
        <artifactId>elastic-job-lite-spring</artifactId>
        <version>${elastic.job.version}</version>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.10</version>
        <scope>provided</scope>
    </dependency>

实现一个简单的job

package study.wyy.elastic.job.spring;

import com.dangdang.ddframe.job.api.ShardingContext;
import com.dangdang.ddframe.job.api.simple.SimpleJob;
import lombok.extern.slf4j.Slf4j;

/**
 * @author by wyaoyao
 * @Description
 * @Date 2020/11/10 9:46 下午
 */
@Slf4j
public class SpringSimpleJob implements SimpleJob {
    public void execute(ShardingContext shardingContext) {

        System.out.println("分片总数是: [{"+shardingContext.getShardingTotalCount()+"}]; 当前分片项是: [{"+shardingContext.getShardingItem()+"}]");


    }
}

配置job
在spring的配置文件中配置

<?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:reg="http://www.dangdang.com/schema/ddframe/reg"
       xmlns:job="http://www.dangdang.com/schema/ddframe/job"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.dangdang.com/schema/ddframe/reg
       http://www.dangdang.com/schema/ddframe/reg/reg.xsd
       http://www.dangdang.com/schema/ddframe/job
       http://www.dangdang.com/schema/ddframe/job/job.xsd
">
    <!--注册中心配置-->
    <reg:zookeeper server-lists="localhost:2181" namespace="spring-elastic-job" id="zkCenter"/>
    <!--job配置-->
    <job:simple id="springElasticJob" registry-center-ref="zkCenter" cron="0/5 * * * * ?" sharding-total-count="2"
                class="study.wyy.elastic.job.spring.SpringSimpleJob" overwrite="true"/>

</beans>

配置一个maven tomcat 插件

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <executions>
                    <execution>
                        <id>tomcat-run</id>
                        <goals>
                            <goal>exec-war-only</goal>
                        </goals>
                        <phase>package</phase>
                        <configuration>
                            <path>/</path>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

运行

分片总数是: [{2}]; 当前分片项是: [{1}]
分片总数是: [{2}]; 当前分片项是: [{0}]
分片总数是: [{2}]; 当前分片项是: [{1}]
分片总数是: [{2}]; 当前分片项是: [{0}]
分片总数是: [{2}]; 当前分片项是: [{1}]