[英]Configuring datasource for Apache Camel
我在application.properties文件中定義了一個數據源,如下所示:
spring.datasource.url = jdbc:mysql://localhost:3306/world?useSSL=false
spring.datasource.username = root
spring.datasource.password = password
但是,當我嘗試運行我的camelroute時,出現以下錯誤:“在注冊表中找不到類型為javax.sql.DataSource的數據源的bean”。 我一直在春季通過使用application.properties文件配置數據源,而沒有出現問題。
完整的錯誤日志:
org.apache.camel.RuntimeCamelException: org.apache.camel.FailedToCreateRouteException: Failed to create route route5 at: >>> To[jdbc:datasource] <<< in route: Route(route5)[[From[bean:sqlBean?method=generateSqlQuery('ci... because of Failed to resolve endpoint: jdbc://datasource due to: No bean could be found in the registry for: datasource of type: javax.sql.DataSource
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1830) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:136) ~[camel-spring-2.21.1.jar:2.21.1]
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:174) ~[camel-spring-2.21.1.jar:2.21.1]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:393) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-4.3.17.RELEASE.jar:4.3.17.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.13.RELEASE.jar:1.5.13.RELEASE]
at com.example.SpringApacheDemoApplication.main(SpringApacheDemoApplication.java:15) [classes/:na]
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route5 at: >>> To[jdbc:datasource] <<< in route: Route(route5)[[From[bean:sqlBean?method=generateSqlQuery('ci... because of Failed to resolve endpoint: jdbc://datasource due to: No bean could be found in the registry for: datasource of type: javax.sql.DataSource
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1303) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:204) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:1145) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3731) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3445) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:209) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3253) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3249) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3272) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3249) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3165) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:133) ~[camel-spring-2.21.1.jar:2.21.1]
... 16 common frames omitted
Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: jdbc://datasource due to: No bean could be found in the registry for: datasource of type: javax.sql.DataSource
at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:758) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:80) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.RouteDefinition.resolveEndpoint(RouteDefinition.java:219) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:115) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:121) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.SendDefinition.resolveEndpoint(SendDefinition.java:62) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.SendDefinition.createProcessor(SendDefinition.java:56) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.ProcessorDefinition.makeProcessorImpl(ProcessorDefinition.java:562) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:523) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:239) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1300) ~[camel-core-2.21.1.jar:2.21.1]
... 28 common frames omitted
Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: datasource of type: javax.sql.DataSource
at org.apache.camel.util.CamelContextHelper.mandatoryLookup(CamelContextHelper.java:189) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.component.jdbc.JdbcComponent.createEndpoint(JdbcComponent.java:52) ~[camel-jdbc-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultComponent.createEndpoint(DefaultComponent.java:126) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:711) ~[camel-core-2.21.1.jar:2.21.1]
... 38 common frames omitted
我的駱駝路線:
from("bean:sqlBean?method=generateSqlQuery('tablename')")
.to("jdbc:datasource")
.process( new Processor () {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getOut().toString();
}});
編輯:我像這樣以編程方式添加了數據源:
@Bean
@Primary
public DataSource datasource() {
System.out.println("hihihi");
return DataSourceBuilder
.create()
.username("root")
.password("password")
.url("jdbc:mysql://localhost:3306/world?useSSL=false")
.driverClassName("com.mysql.jdbc.Driver")
.build();
}
但是,現在我遇到了另一個錯誤:
Caused by: java.lang.UnsupportedOperationException: You cannot consume from a bean endpoint
at org.apache.camel.component.bean.BeanEndpoint.createConsumer(BeanEndpoint.java:75) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.EventDrivenConsumerRoute.addServices(EventDrivenConsumerRoute.java:69) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.DefaultRoute.onStartingServices(DefaultRoute.java:103) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.RouteService.doWarmUp(RouteService.java:172) ~[camel-core-2.21.1.jar:2.21.1]
at org.apache.camel.impl.RouteService.warmUp(RouteService.java:145) ~[camel-core-2.21.1.jar:2.21.1]
... 28 common frames omitted
我想您正在使用Spring Boot。 也許“數據源”不是Spring Boot給出的名稱? 一個選項是檢查Spring Boot加載的所有bean的名稱。 更多信息: 打印所有已加載的Spring Bean-Spring Boot
另一個較早的選擇是以編程方式配置DataSource並設置所需的名稱。 更多信息: 在Spring Boot中以編程方式配置DataSource
希望對您有所幫助。
對於新錯誤,您可以使用直接組件,例如:
from("direct:start")
.to("bean:sqlBean?method=generateSqlQuery('tablename')")
.to("jdbc:datasource")
.process( new Processor () {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getOut().toString();
}});
由於您使用的是Apache Camel,因此需要像這樣定義一個數據源bean
<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
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd">
<bean id="sqlComponent" class="org.apache.camel.component.sql.SqlComponent">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
您的application.properties文件應如下配置
spring.datasource.url=#use your url here
spring.datasource.username=TEST
spring.datasource.password=TEST
spring.datasource.driver-class-name=oracle.jdbc.OracleDriver #give your own driver-class name
spring.datasource.testWhileIdle=true
spring.datasource.validationQuery=SELECT 1
spring.jpa.show-sql=true
我到達這里是因為我正在尋找類似的問題,因此我們正在將基於xml的駱駝代碼遷移到Springboot和Java Configuration。 通過執行以下操作,我能夠自動配置數據源:
添加依賴項spring-boot-starter-jdbc
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
版本取決於您使用的Springboot版本。
在application.properties文件中配置以下內容
spring.datasource.driver-class-name = <driverName>
spring.datasource.url = <url>
spring.datasource.username = <username>
spring.datasource.password = <password>
按照上述步驟,Springboot將為您自動配置dataSource bean。
這是我的示例駱駝路線,試圖運行存儲過程:
from("timer://mytimer?fixedRate=true&period=10s")
.log("TESTING")
.setBody(constant("EXEC SP_Manuals @DocumentRef = 'xyz1234' , @Year = '2019'"))
.to("jdbc:dataSource")
“ dataSource”是Springboot創建的DataSouurce bean。
如果使用to(“ jdbc:datasource”) ,則會在下面得到異常。
Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: datasource of type: javax.sql.DataSource
僅提供一項附加信息,如果您忘記包含camel-jdbc依賴項,則會在下面看到異常:
Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: jdbc://dataSource due to: No component found with scheme: jdbc
因此,請確保您的pom.xml中具有camel-jdbc依賴項
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jdbc</artifactId>
</dependency>
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