springbatch---->springbatch的使用（一）

　　这里我们通过一个简单的实例来对springbatch做一个入门的体会。刚刚好，看见你幸福的样子，于是幸福着你的幸福。

springbatch的入门案例

简单项目的结构如下：

一、引入maven的springbatch的依赖

<dependencies>
    <dependency>
        <groupId>org.springframework.batch</groupId>
        <artifactId>spring-batch-core</artifactId>
        <version>LATEST</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring-version}</version>
    </dependency>
</dependencies>

二、application.xml的内容如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
        <property name="jobRepository" ref="jobRepository"/>
    </bean>

    <bean id="jobRepository" class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean">
    </bean>

    <bean id="transactionManager" class="org.springframework.batch.support.transaction.ResourcelessTransactionManager"/>
</beans>

三、batch.xml的文件内容如下

<?xml version="1.0" encoding="UTF-8"?>
<bean:beans xmlns="http://www.springframework.org/schema/batch"
            xmlns:bean="http://www.springframework.org/schema/beans"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/batch
http://www.springframework.org/schema/batch/spring-batch-3.0.xsd">

    <bean:import resource="application.xml"/>

    <job id="helloWorldJob">
        <step id="step_hello" next="step_world">
            <tasklet ref="hello" transaction-manager="transactionManager"></tasklet>
        </step>
        <step id="step_world">
            <tasklet ref="world" transaction-manager="transactionManager"></tasklet>
        </step>
    </job>

    <bean:bean id="hello" class="com.linux.huhx.batch.WriteTasklet">
        <bean:property name="message" value="Hello "></bean:property>
    </bean:bean>

    <bean:bean id="world" class="com.linux.huhx.batch.WriteTasklet">
        <bean:property name="message" value=" World!"></bean:property>
    </bean:bean>
</bean:beans>

四、WriteTasklet.java的内容如下

package com.linux.huhx.batch;

import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;

/**
 * @Author: huhx
 * @Date: 2017-09-14 上午 9:56
 * @Desc:
 */
public class WriteTasklet implements Tasklet {
    private String message;

    public void setMessage(String message) {
        this.message = message;
    }

    @Override
    public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
        System.out.print(message);
        return RepeatStatus.FINISHED;
    }
}

五、JobLaunch.java的内容如下

package com.linux.huhx.batch;

import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * @Author: huhx
 * @Date: 2017-09-14 上午 9:58
 * @Desc:
 */
public class JobLaunch {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("config/batch/batch.xml");
        JobLauncher launcher = (JobLauncher) context.getBean("jobLauncher");

        Job job = (Job) context.getBean("helloWorldJob");
        try {
            // 运行Job
            JobExecution result = launcher.run(job, new JobParameters());
            // 处理结束，控制台打印处理结果
            System.out.println(result.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

运行的结果是先打印Hello 后打印 World!

友情链接