如何在没有 java 配置而不是 XML 的情况下使用 CommandLineJobRunner 启动 Spring 批处理答案

【问题标题】：How to Launch Spring batch using CommandLineJobRunner without java configuration instead of XML如何在没有 java 配置而不是 XML 的情况下使用 CommandLineJobRunner 启动 Spring 批处理
【发布时间】：2019-11-06 18:37:33
【问题描述】：

我在 java 配置文件中有一个作业定义。当我尝试从 gradle 任务运行作业时，我得到 IOException parsing XML Document from class path。如何在没有 XML 配置的情况下使用 CommandLineJobRunner 运行作业？

分级

task executeJob(type: JavaExec) {
    main = 'org.springframework.batch.core.launch.support.CommandLineJobRunner'
    classpath = sourceSets.test.runtimeClasspath
    args = ["--job_path", "C:\\dev\\git\\ncf-bulk-order\\src\\main\\java\\com\\shelter\\NCFBulkOrder\\Jobs\\NCFBulkOrderConfig.java",
            "--job_id", "Response",
            "--next",
            "--customParam", "value"]
}

堆栈跟踪

org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [--job_path]; nested exception is java.io.FileNotFoundException: class path resource [--job_path] cannot be opened because it does not exist
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:252)
        at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127)
        at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93)
        at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
        at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:613)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:514)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
        at org.springframework.batch.core.launch.support.CommandLineJobRunner.start(CommandLineJobRunner.java:290)
        at org.springframework.batch.core.launch.support.CommandLineJobRunner.main(CommandLineJobRunner.java:565)
Caused by: java.io.FileNotFoundException: class path resource [--job_path] cannot be opened because it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
        ... 14 common frames omitted

【问题讨论】：

how to launch Spring Batch Job using CommandLineJobRunner having Java configuration的可能重复

标签： spring-batch

【解决方案1】：

CommandLineJobRunner 需要 XML 文件或 Java 配置类，其中包含定义您的作业的 Spring 应用程序上下文。这是一个带有 Java 配置类的示例：

java -cp your/class/path \
     org.springframework.batch.core.launch.support.CommandLineJobRunner \
     com.example.MyJobConfiguration \
     myJob

所以在你的命令中，你不需要传递--job_path 标志。

【讨论】：