Spring Batch任务调度

73.spring-batch-launcher/pom.xml

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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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.5.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>cc.mrbird</groupId>
+    <artifactId>spring-batch-launcher</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-batch-launcher</name>
+    <description>Demo project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-batch</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

73.spring-batch-launcher/src/main/java/cc/mrbird/batch/SpringBatchLauncherApplication.java

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+package cc.mrbird.batch;
+
+import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+@EnableBatchProcessing
+public class SpringBatchLauncherApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBatchLauncherApplication.class, args);
+    }
+}

73.spring-batch-launcher/src/main/java/cc/mrbird/batch/configure/JobConfigure.java

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+package cc.mrbird.batch.configure;
+
+import org.springframework.batch.core.configuration.JobRegistry;
+import org.springframework.batch.core.configuration.support.JobRegistryBeanPostProcessor;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author MrBird
+ */
+@Configuration
+public class JobConfigure {
+
+    /**
+     * 注册JobRegistryBeanPostProcessor bean
+     * 用于将任务名称和实际的任务关联起来
+     */
+    @Bean
+    public JobRegistryBeanPostProcessor processor(JobRegistry jobRegistry, ApplicationContext applicationContext) {
+        JobRegistryBeanPostProcessor postProcessor = new JobRegistryBeanPostProcessor();
+        postProcessor.setJobRegistry(jobRegistry);
+        postProcessor.setBeanFactory(applicationContext.getAutowireCapableBeanFactory());
+        return postProcessor;
+    }
+}

73.spring-batch-launcher/src/main/java/cc/mrbird/batch/controller/JobController.java

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+package cc.mrbird.batch.controller;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.batch.core.launch.JobOperator;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author MrBird
+ */
+@RestController
+@RequestMapping("job")
+public class JobController {
+
+    @Autowired
+    private Job job;
+    @Autowired
+    private JobLauncher jobLauncher;
+    @Autowired
+    private JobOperator jobOperator;
+
+    @GetMapping("launcher/{message}")
+    public String launcher(@PathVariable String message) throws Exception {
+        JobParameters parameters = new JobParametersBuilder()
+                .addString("message", message)
+                .toJobParameters();
+        // 将参数传递给任务
+        jobLauncher.run(job, parameters);
+        return "success";
+    }
+
+    @GetMapping("operator/{message}")
+    public String operator(@PathVariable String message) throws Exception {
+        // 传递任务名称，参数使用 kv方式
+        jobOperator.start("job", "message=" + message);
+        return "success";
+    }
+}

73.spring-batch-launcher/src/main/java/cc/mrbird/batch/job/MyJob.java

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+package cc.mrbird.batch.job;
+
+import org.springframework.batch.core.*;
+import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
+import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
+import org.springframework.batch.repeat.RepeatStatus;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+
+/**
+ * @author MrBird
+ */
+@Component
+public class MyJob{
+
+    @Autowired
+    private JobBuilderFactory jobBuilderFactory;
+    @Autowired
+    private StepBuilderFactory stepBuilderFactory;
+
+    @Bean
+    public Job job(){
+        return jobBuilderFactory.get("job")
+                .start(step())
+                .build();
+    }
+
+    private Step step(){
+        return stepBuilderFactory.get("step")
+                .tasklet((stepContribution, chunkContext) -> {
+                    StepExecution stepExecution = chunkContext.getStepContext().getStepExecution();
+                    Map<String, JobParameter> parameters = stepExecution.getJobParameters().getParameters();
+                    System.out.println(parameters.get("message").getValue());
+                    return RepeatStatus.FINISHED;
+                })
+                .listener(this)
+                .build();
+    }
+}

73.spring-batch-launcher/src/main/resources/application.yml

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+spring:
+  datasource:
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://localhost:3306/springbatch?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2b8
+    username: root
+    password: 123456
+  batch:
+    job:
+      enabled: false