在 Spring 中配置系统属性
我有文件通道适配器,需要以指定的时间间隔监听目录。我有以下代码。
<file:inbound-channel-adapter id="fileAdapter"
directory="file:${SYS.com.abc.wls.workdir}/finalize/" queue-size="1000"
auto-startup="true" filename-pattern="*.txt">
<int:poller fixed-delay="500">
</int:poller>
</file:inbound-channel-adapter>
当我用真实的目录名称替换 directory="file:${SYS.com.abc.wls.workdir}/finalize/
时(如 directory="file:C:/temp/ Finalize/
)一切正常。但是启动服务器时正在设置系统属性,但spring没有检测到系统属性。
你能帮忙吗?
更新:
我对占位符删除了以下配置
<beans:bean id="jobProperties"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<beans:property name="properties">
<beans:value>
job.group.commit.interval=5000
</beans:value>
</beans:property>
<beans:property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_FALLBACK" />
<beans:property name="ignoreUnresolvablePlaceholders"
value="true" />
<beans:property name="order" value="1" />
</beans:bean>
:file:
from directory="file:${SYS.com.abc.wls.workdir}/ Finalize/"
并更改为 auto-create-directory="false"
现在我正在获取异常,如下所示,
by: java.lang.IllegalArgumentException: Source directory **[${SYS.com.abc.wls.workdir}\finalize] does not exist**.
at org.springframework.util.Assert.isTrue(Assert.java:65)
at org.springframework.integration.file.FileReadingMessageSource.onInit(FileReadingMessageSource.java:233)
at org.springframework.integration.context.IntegrationObjectSupport.afterPropertiesSet(IntegrationObjectSupport.java:98)
at org.springframework.integration.file.config.FileReadingMessageSourceFactoryBean.initSource(FileReadingMessageSourceFactoryBean.java:153)
at org.springframework.integration.file.config.FileReadingMessageSourceFactoryBean.getObject(FileReadingMessageSourceFactoryBean.java:99)
at org.springframework.integration.file.config.FileReadingMessageSourceFactoryBean.getObject(FileReadingMessageSourceFactoryBean.java:37)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport$2.run(FactoryBeanRegistrySupport.java:133)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:131)
... 63 more
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您需要声明一个识别系统属性的 spring 实体。典型的方法是放置
PropertyPlaceHolderConfigurer
。默认模式为 SYSTEM_PROPERTIES_MODE_FALLBACK ,这意味着配置器未保存的值将作为系统属性进行查找。可以使用
setSystemPropertiesMode
。You need to declare a spring entity which recognizes system properties. The typical approach is to put a
PropertyPlaceHolderConfigurer
in your Springconfiguration.The default mode is
SYSTEM_PROPERTIES_MODE_FALLBACK
, which means that values not held by the configurer will be looked for as a system property. The mode can be overriden usingsetSystemPropertiesMode
.