在spring batch admin中加载外部配置文件 [英] load external config file in spring batch admin

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本文介绍了在spring batch admin中加载外部配置文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在 github 回购中下载了spring批处理管理应用程序在日食中导入它。它工作得很好。

I downloaded the spring batch admin application in the github repo and I imported it in eclipse. it works perfectly.

然后，我问自己如何将外部配置文件导入到我可以在我的作业定义类中使用的应用程序中。

Then, I asked myself how to import an external config file into the application that I can use in my job definition class.

我试过这个：

VM参数 

-Dspring.config.location=C:/path/to/config/file/application.properties

工作配置 

src/main/java
org.springframework.batch.admin.sample.job
-------------------------------------------

@Configuration
public class JobConfiguration {

    //I try to import this properties from an external config file.
    @Value("${folder.input.files}") 
    private String pathToFiles;

    @Autowired
    public JobBuilderFactory jobBuilderFactory;

    @Autowired
    public StepBuilderFactory stepBuilderFactory;

    @Bean
    @JobScope
    public ExampleItemReader itemReader() {
        return new ExampleItemReader();
    }

    @Bean
    @StepScope
    public ExampleItemWriter itemWriter(@Value("#{jobParameters[fail]}") Boolean fail) {
        ExampleItemWriter itemWriter = new ExampleItemWriter();
        itemWriter.setFail(fail);
        return itemWriter;
    }

    @Bean
    public Step step1() {
        return stepBuilderFactory.get("step1")
                .<String, Object>chunk(5)
                .reader(itemReader())
                .writer(itemWriter(null))
                .build();
    }

    @Bean
    public Job javaJob() {
        return jobBuilderFactory.get("javaJob")
                .start(step1())
                .build();
    }
}

XML配置 

src/main/resources
launch-context.xml
-----------------------
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:p="http://www.springframework.org/schema/p" 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">

<description><![CDATA[
  A convenient aggregating config file for running the jobs in this project
  from the command line instead of from the web application.  E.g.

  $ MAVEN_OPTS="-Dbatch.jdbc.url=jdbc:hsqldb:hsql://localhost:9005/samples -Dbatch.data.source.init=false" \
    mvn exec:java -Dexec.classpathScope=runtime \
    -Dexec.mainClass=org.springframework.batch.core.launch.support.CommandLineJobRunner \
    -Dexec.args="classpath:launch-context.xml job1 fail=false run.id=1"


  ]]>
</description>

<import resource="classpath*:/META-INF/spring/batch/bootstrap/**/*.xml" />
<import resource="classpath*:/META-INF/spring/batch/override/**/*.xml" />

<bean id="jobLauncherTaskExecutor" class="org.springframework.core.task.SyncTaskExecutor"/>

<!-- Try to add my external config file -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>classpath:file:///${spring.config.location}</value>
        </list>
    </property>
    <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
    <property name="ignoreResourceNotFound" value="true" />
    <property name="ignoreUnresolvablePlaceholders" value="false" />
    <property name="order" value="1" />
</bean>


</beans>

使用tomcat 7启动应用时的堆栈跟踪 

18:54:38,528 ERROR localhost-startStop-1 context.ContextLoader:331 - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.lang.String org.springframework.batch.admin.sample.job.JobConfiguration.pathToFiles; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'folder.input.files' in string value "${folder.input.files}"
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    at org.springframework.batch.core.configuration.support.GenericApplicationContextFactory$ResourceAnnotationApplicationContext.<init>(GenericApplicationContextFactory.java:209)
    at org.springframework.batch.core.configuration.support.GenericApplicationContextFactory.createApplicationContext(GenericApplicationContextFactory.java:70)
    at org.springframework.batch.core.configuration.support.AbstractApplicationContextFactory.createApplicationContext(AbstractApplicationContextFactory.java:172)
    at org.springframework.batch.core.configuration.support.DefaultJobLoader.doLoad(DefaultJobLoader.java:154)
    at org.springframework.batch.core.configuration.support.DefaultJobLoader.load(DefaultJobLoader.java:147)
    at org.springframework.batch.core.configuration.support.AutomaticJobRegistrar.start(AutomaticJobRegistrar.java:173)
    at org.springframework.batch.core.configuration.support.AutomaticJobRegistrar.onApplicationEvent(AutomaticJobRegistrar.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:773)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.lang.String org.springframework.batch.admin.sample.job.JobConfiguration.pathToFiles; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'folder.input.files' in string value "${folder.input.files}"
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:555)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 34 more
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'folder.input.files' in string value "${folder.input.files}"
    at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:174)
    at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126)
    at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer$PlaceholderResolvingStringValueResolver.resolveStringValue(PropertyPlaceholderConfigurer.java:259)
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:800)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:962)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:527)
    ... 36 more

pom.xml 

<?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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <artifactId>spring-batch-admin-sample</artifactId>
    <description>A sample web application (WAR project) for Spring Batch Admin console.</description>
    <parent>
        <artifactId>spring-batch-admin-parent</artifactId>
        <groupId>org.springframework.batch</groupId>
        <version>2.0.0.BUILD-SNAPSHOT</version>
        <relativePath>../spring-batch-admin-parent</relativePath>
    </parent>
    <packaging>war</packaging>
    <name>Web Sample</name>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
        </dependency>
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-infrastructure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-admin-manager</artifactId>
            <version>2.0.0.BUILD-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-admin-resources</artifactId>
            <version>2.0.0.BUILD-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <configuration>
                    <contextPath>/spring-batch-admin-sample</contextPath>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Maven Milestone Repository</name>
            <url>http://s3.amazonaws.com/maven.springframework.org/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
</project>

我试过这个帖子以及更多但没有成功。

I tried this post and much more but without success.

我使用完全相同的文件和相同的文件配置比spring批处理管理github项目。

I use exactly the same files and the same configuration than the spring batch admin github project.

有人能告诉我如何将外部配置文件添加到spring批处理管理员吗？

Can someone tell me how to add the external configuration file to spring batch admin?

推荐答案

Spring批处理管理员搜索特定路径中的配置。此页面解释了它从哪些路径加载资源：

Spring batch admin searches configurations in specific paths.This page explains from which paths it loads resources:

<import resource="classpath*:/META-INF/spring/batch/bootstrap/**/*.xml"/>
<import resource="classpath*:/META-INF/spring/batch/override/**/*.xml"/>




请注意，覆盖位置在Spring中没有文件批量
管理员分配。这是一个占位符，供用户添加自己的
内容。

Note that the "override" location has no files in it in Spring Batch Admin distribution. This is a placeholder for users to add their own content.

我们设法加载外部属性文件放置xml配置文件在 src / main / resources / META-INF / spring / batch / override / manager / env-context.xml 下，如下所示：

We managed to load external properties files placing xml configuration file under src/main/resources/META-INF/spring/batch/override/manager/env-context.xml which looks like this:

<?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">

    <!-- Use this to set additional properties on beans at run time -->
    <bean id="placeholderProperties"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:/org/springframework/batch/admin/bootstrap/batch.properties</value>
                <value>classpath:batch-default.properties</value>
                <value>classpath:batch-${ENVIRONMENT:hsql}.properties</value>
                <value>classpath:batch-${ENVIRONMENT:mysql}.properties</value>
                <!-- here we load properties from external config folder -->
                <value>file:${spring.file.location}</value>
             </list>
        </property>
        <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
        <property name="ignoreResourceNotFound" value="false" />
        <property name="ignoreUnresolvablePlaceholders" value="false" />
        <property name="order" value="1" />
    </bean>
</beans>

这篇关于在spring batch admin中加载外部配置文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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