Question

人。

我是骆驼的初学者。我有问题。

我们正在使用骆驼实现文件传输系统。

我从外部属性文件设置属性。

但是无法访问该属性文件的应用程序。我们不能使用propertyplaceholder，因为该值将在运行时更改。

我们像下面那样实现它。

camelContext.xml

<bean id="myProperties" class="java.util.Properties"/>
<bean id="propertylist" 
 class="org.apache.camel.component.properties.PropertiesComponent">
     <property name="cache" value="true"/>
     <property name="location" value="classpath:camelap.properties"/>
     <property name="overrideProperties" ref="myProperties"/>
</bean>
<camelContext id="camelContext-f611cb6c-d516-4346-9adc-5512d327a88d"
 trace="false" xmlns="http://camel.apache.org/schema/spring">
     <camel:route id="initial_info">
         <camel:from id="_initial" uri="direct:sqlParam"/>
         <camel:to id="_selectReference" uri="sql:{{sql.referenceInfo}}? 
          dataSource=dataSource"/>
         <camel:process id="_process1" ref="tempBean"/>
         <camel:log id="_aaaa" loggingLevel="WARN" message="tttttttt ::: 
          {{test}} ::: ${header.sourceDirectory}"/>
     </camel:route>

camelap.properties：路径：目标/类

 file.uri=/home/WRK/KR/SND/DAT
 test=OLD_VALUE
 file.pattern=SLPNPM*,SPLNCC*,SLPNCM*,SLPNPC*

 ############################################
 ## SQL Statement ##
 ############################################
 sql.referenceInfo=SELECT DISTINCT \
                   A.WFLOW_INST_ID ,\
                   TO_CHAR(A.EFCT_ST_DT,'YYYYMMDDHH24MISS') EFCT_ST_DT, \
                   B.NE_ID , \
                   B.NE_TYPE_ID , \
                   B.CDR_FILE_COLEC_DIR_NM , \
                   B.ORIGIN_FMT_ID , \
                   B.TRM_DIR_NM , \
                   D.CDR_FILE_NMNG_RULE_SBST, \
                   D.FILE_NM_LEN , \
                   B.FNS_FILE_CRET_YN , \
                   B.FNS_FILE_DIV_CD \
                   FROM TB_WFLOW_INFO A, \
                        TB_CDRSEND_BASE_INFO B, \
                        TB_FILE_FMT_INFO D \
                   WHERE A.WFLOW_INST_ID = 'P1_IPTVKR' \
                     AND B.NE_ID = 'KRLPPM10' \
                     AND now() BETWEEN A.EFCT_ST_DT AND A.EXP_DT \
                     AND now() BETWEEN B.EFCT_ST_DT AND B.EXP_DT \
                     AND A.WFLOW_INST_ID = B.WFLOW_INST_ID \
                     AND B.ORIGIN_FMT_ID = D.CDR_FILE_FMT_ID;

错误日志。

     org.apache.camel.RuntimeCamelException: 
     org.apache.camel.FailedToCreateRouteException: Failed to create route initial_info at: >>> To[sql:{{sql.referenceInfo}}?dataSource=dataSource] <<< in route: Route(initial_info)[[From[direct:sqlParam]] -> [To[sql:{{sql... because of Property with key [sql.referenceInfo] not found in properties from text: sql:{{sql.referenceInfo}}?dataSource=dataSource
         at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1826) ~[camel-core-2.23.1.jar:2.23.1]
         at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:136) ~[camel-spring-2.23.1.jar:2.23.1]
         at org.apache.camel.spring.CamelContextFactoryBean.start(CamelContextFactoryBean.java:370) ~[camel-spring-2.23.1.jar:2.23.1]
         at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:417) ~[camel-spring-2.23.1.jar:2.23.1]
         at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:95) ~[camel-spring-2.23.1.jar:2.23.1]
         at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:896) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:163) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
         at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552) ~[spring-context-5.1.5.RELEASE.jar:5.1.5.RELEASE]
         at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
         at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
         at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) ~[spring-boot-2.1.3.RELEASE.jar:2.1.3.RELEASE]
    at com.ktds.openmzn.OpenmznApplication.main(OpenmznApplication.java:25) ~[classes/:na]
    .....
    Caused by: java.lang.IllegalArgumentException: Property with key [sql.referenceInfo] not found in properties from text: sql:{{sql.referenceInfo}}?dataSource=dataSource
    at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.getPropertyValue(DefaultPropertiesParser.java:271) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.readProperty(DefaultPropertiesParser.java:157) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.doParse(DefaultPropertiesParser.java:116) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.DefaultPropertiesParser$ParsingContext.parse(DefaultPropertiesParser.java:100) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.DefaultPropertiesParser.parseUri(DefaultPropertiesParser.java:63) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:235) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:178) ~[camel-core-2.23.1.jar:2.23.1]
    at org.apache.camel.impl.DefaultCamelContext.resolvePropertyPlaceholders(DefaultCamelContext.java:2547) ~[camel-core-2.23.1.jar:2.23.1]

Answer 1

如果要使用属性组件，则需要像这样将名称与属性绑定。

<camelContext trace="{{foo.trace}}" xmlns="http://camel.apache.org/schema/spring">
    <propertyPlaceholder id="properties" location="org/apache/camel/spring/processor/myprop.properties"/>
    <template id="camelTemplate" defaultEndpoint="{{foo.cool}}"/>
    <route>
        <from uri="direct:start"/>
        <setHeader headerName="{{foo.header}}">
            <simple>${in.body} World!</simple>
        </setHeader>
        <to uri="mock:result"/>
    </route>
</camelContext>

您可以找到更多信息here

不确定是否使用弹簧靴，有一种简单的方法可以在骆驼properties中利用弹簧靴Route。

属性值不可访问

1 个答案: