骆驼+ tomcat+ DataSource+ jndi =不可能

发布于 2025-02-07 06:01:15 字数 2470 浏览 0 评论 0原文

我有一个在tomcat中运行的春季应用程序,可以连接到JNDI配置的数据源。我正在尝试使我的Apache Camel应用程序也这样做。

tomcat context.xml

<ResourceLink global="jdbc/deapplication-datasource" name="jdbc/deapplication-datasource" type="javax.sql.DataSource"/>

tomcat server.xml

<Resource name="jdbc/deapplication-datasource" 
    auth="Container" 
    type="javax.sql.DataSource" 
    maxTotal="50" maxIdle="30" maxWaitMillis="10000" 
    username="yada" password="nada" 
    driverClassName="oracle.jdbc.driver.OracleDriver" 
    url="jdbc:oracle:thin:@//test-cluster:1521/foo.bar.ca"/>

camel-config.xml

<!-- JNDI connection fails with Tomcat localhost (works in our testing/WebLogic environment -->
<bean id="dataSourceHello" class="org.springframework.jndi.JndiObjectFactoryBean"> 
    <property name="jndiName" value="java:comp/env/jdbc/deapplication-datasource"/>
</bean>

<!-- manual config works 
<bean id="dataSourceHello" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="oracle.jdbc.OracleDriver" />
    <property name="url" value="jdbc:oracle:thin:@//test-cluster:1521/foo.bar.ca" />
    <property name="username" value="yada" />
    <property name="password" value="nada" />
</bean>
-->

java/骆驼代码:

from("direct:healthCheckDb")
        .log("0")
        .setBody(simple("select * from dual"))
        .log("1")
        .to("jdbc:dataSourceHello")
        .log("2")

tomcat log:

2022-06-13 12:07:49,879 INFO - 0 
2022-06-13 12:07:49,881 INFO - 1 
2022-06-13 12:07:50,444 ERROR - Failed delivery for (MessageId: ID-IT-DEV-VM-112-1655147269874-0-1 on ExchangeId: ID-IT-DEV-VM-112-1655147269874-0-1). On delivery attempt: 0 caught: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-IT-DEV-VM-112-1655147269874-0-1] 
2022-06-13 12:07:50,456 ERROR - null org.apache.camel.CamelExecutionException Exception occurred during execution on the exchange: Exchange[ID-IT-DEV-VM-112-1655147269874-0-1] 

tomcat and app启动可以启动,但是当我按照log 1之后的healthCheckdb键入静止的路径时,它会在log 1之后进行。您可能在上面注意到)。如果我使用手动配置的数据源,则相同的语句也有效。但是,我更喜欢使用与我们在Weblogic中使用的相同设置,因此我不必继续对Camel-config.xml文件进行不关注和评论。

(旁注:经过数小时的研究,没有看到2个网页就如何为数据源配置Tomcat Jndi一致)。

可以让骆驼与JNDI合作吗?

I have a Spring app that runs in Tomcat and connects okay to a JNDI configured datasource. I'm trying to get my Apache Camel app to do the same.

Tomcat context.xml

<ResourceLink global="jdbc/deapplication-datasource" name="jdbc/deapplication-datasource" type="javax.sql.DataSource"/>

Tomcat server.xml

<Resource name="jdbc/deapplication-datasource" 
    auth="Container" 
    type="javax.sql.DataSource" 
    maxTotal="50" maxIdle="30" maxWaitMillis="10000" 
    username="yada" password="nada" 
    driverClassName="oracle.jdbc.driver.OracleDriver" 
    url="jdbc:oracle:thin:@//test-cluster:1521/foo.bar.ca"/>

camel-config.xml

<!-- JNDI connection fails with Tomcat localhost (works in our testing/WebLogic environment -->
<bean id="dataSourceHello" class="org.springframework.jndi.JndiObjectFactoryBean"> 
    <property name="jndiName" value="java:comp/env/jdbc/deapplication-datasource"/>
</bean>

<!-- manual config works 
<bean id="dataSourceHello" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="oracle.jdbc.OracleDriver" />
    <property name="url" value="jdbc:oracle:thin:@//test-cluster:1521/foo.bar.ca" />
    <property name="username" value="yada" />
    <property name="password" value="nada" />
</bean>
-->

Java/Camel code:

from("direct:healthCheckDb")
        .log("0")
        .setBody(simple("select * from dual"))
        .log("1")
        .to("jdbc:dataSourceHello")
        .log("2")

Tomcat log:

2022-06-13 12:07:49,879 INFO - 0 
2022-06-13 12:07:49,881 INFO - 1 
2022-06-13 12:07:50,444 ERROR - Failed delivery for (MessageId: ID-IT-DEV-VM-112-1655147269874-0-1 on ExchangeId: ID-IT-DEV-VM-112-1655147269874-0-1). On delivery attempt: 0 caught: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-IT-DEV-VM-112-1655147269874-0-1] 
2022-06-13 12:07:50,456 ERROR - null org.apache.camel.CamelExecutionException Exception occurred during execution on the exchange: Exchange[ID-IT-DEV-VM-112-1655147269874-0-1] 

Tomcat and the app start up okay, but when I hit the restful path to test healthCheckDb it fails after log 1 but before log 2 (as you probably noticed above). The same statement works if I use the manual configured datasource. But I'd prefer to use the same setup as we use for WebLogic so I don't have to keep uncommenting and commenting the camel-config.xml file.

(Side note: after hours of research, have not seen 2 web pages agree on how to configure Tomcat JNDI for a datasource).

Possible to get Camel working with JNDI?

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