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Re: [jetty-users] Getting JNDI/ db connection pool to work
|
>> This is the link to the page with the current docs:
>> https://www.eclipse.org/jetty/documentation/
>>
>>
>> I don't see a link to a "jetty dependencies" page. Likely you are
>> following out-of-date doco - alternatively post a link to the page
>> linked from the one of the doc bundles above and I'll amend/remove it
>> as necessary.
>
>
> This page seems to be there:
>
> https://eclipse.org/jetty/documentation/current/jndi-embedded.html
>
> -- errata:
>
> "You can obtain this jar from the Jetty dependencies site.
> 404
> http://download.eclipse.org/jetty/orbit/javax.mail.glassfish_1.4.1.v201005082020.jar/dist/
Ok, those links on that page look wrong, they shouldn't have the dist/
suffix. I've opened a bug for that:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=472671
> One thing I noticed that wasn't in the docs is that I had --module=jndi
> commented out in start.ini.
You should have jndi, plus and maybe ext (eg if you've copied your
driver jars into ext/) modules enabled.
However, you've posted links to the jetty embedded page, but yet you
mention using a jetty distribution. If you're making a standard webapp
and deploying it to a jetty distro, you should enable the modules I
just mentioned. If you've created a main class then you need to make
sure that jetty-plus, jetty-env jars are on the command line, and you
need to make sure that the extra configuration classes of
JettyEnvXmlConfiguration and PlusConfiguration are enabled for the
WebAppContext - see line 20 of the example code pasted on the
jndi-embedded.html page you linked to.
Jan
>
> Now I get:
>
> On the lookup line in my servlet:
>
> DataSource ds = (DataSource)ic.lookup("java:comp/env/jdbc/pr");
>
> Getting hard-to-interpret NameNotFoundException:
>
> 00:19:24.129 [qtp1915503092-15] ERROR com.priot.servlet.GetSession - Naming
> javax.naming.NameNotFoundException
> at
> org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:533)
> ~[jetty-jndi-9.3.1-SNAPSHOT.jar:9.3.1-SNAPSHOT]
>
> This tells me that I am getting jetty-jndi from local source, so adding my
> own info in a warn and reinstalling:
>
> 2015-07-14 00:19:24.129:WARN:jndi:qtp1915503092-15: Binding null for
> firstComponent: [env]
>
> But 'env' is boilerplate from the examples:
>
> DataSource myDS = (DataSource)ic.lookup("java:comp/env/jdbc/myds");
>
> Does that reveal something useful?
>
> Thanks,
> Bill
>
>
>>
>> jetty-plus is most definitely still in use. You'll need it. I suggest
>> you look at either the embedded examples in the jetty repo or the
>> test-jndi webapp in the jetty distro to see what you need to do.
>>
>> cheers
>> Jan
>>
>> On 12 July 2015 at 02:45, Bill Ross <ross@xxxxxxxxxxxx> wrote:
>>>
>>> By the way, I notice the 'Jetty dependencies site' is broken, and the
>>> jndi
>>> intro page that mentions it looks out of date.
>>> Why isn't the source for jetty-jndi.jar in the distribution? It would be
>>> easier to debug. I found the jar on maven and got it via my build.gradle:
>>>
>>> compile group: 'org.eclipse.jetty', name: 'jetty-jndi', version:
>>> '9.3.0.v20150612'
>>>
>>> But now it gives me this on lookup:
>>>
>>> 09:25:46.627 [qtp1963387170-11] ERROR com.priot.servlet.GetSession -
>>> Naming
>>> javax.naming.NameNotFoundException
>>> at
>>> org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:532)
>>> ~[jetty-jndi-9.3.0.v20150612.jar:9.3.0.v20150612]
>>> at
>>> org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:563)
>>> ~[jetty-jndi-9.3.0.v20150612.jar:9.3.0.v20150612]
>>> at
>>> org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:578)
>>> ~[jetty-jndi-9.3.0.v20150612.jar:9.3.0.v20150612]
>>> at
>>>
>>> org.eclipse.jetty.jndi.java.javaRootURLContext.lookup(javaRootURLContext.java:106)
>>> ~[jetty-jndi-9.3.0.v20150612.jar:9.3.0.v20150612]
>>> at javax.naming.InitialContext.lookup(InitialContext.java:417)
>>> ~[?:1.8.0_45]
>>> at com.priot.servlet.GetSession.doPost(GetSession.java:53)
>>> [classes/:?]
>>>
>>> I wonder if this I got from the doc is right, since it defines the name -
>>> what about the empty first arg?
>>> Hm - it uses jetty.plus but jetty-plus.jar seems to be a thing of the
>>> past
>>> (see note on out of date page above - jetty-plus.jar seems to have ended
>>> w/
>>> v7 in maven central). Another odd thing is that the name is in the Arg,
>>> not
>>> in the id, which is normally what I'd expect to use to look up an object:
>>>
>>> <Configure class="org.eclipse.jetty.webapp.WebAppContext">
>>> <New id="prDataSource" class="org.eclipse.jetty.plus.jndi.Resource">
>>> <Arg></Arg>
>>> <Arg>jdbc/pr</Arg>
>>> <Arg>
>>> <New class="com.mchange.v2.c3p0.ComboPooledDataSource">
>>> <Set name="driverClass">com.mysql.jdbc.Driver</Set>
>>> <Set name="jdbcUrl">jdbc:mysql://localhost:3306/pr</Set>
>>> <Set name="user">user</Set>
>>> <Set name="password">pwd</Set>
>>> </New>
>>> </Arg>
>>> </New>
>>> </Configure>
>>>
>>> Thanks,
>>> Bill
>>>
>>>
>>>
>>> On 7/10/2015 11:05 PM, Jan Bartel wrote:
>>>
>>> Looks to me that you don't have jetty-jndi.jar on the classpath - it
>>> contains the jndi impl.
>>>
>>> Jan
>>>
>>> On 11 July 2015 at 14:52, Bill Ross <ross@xxxxxxxxxxxx> wrote:
>>>
>>> I have:
>>>
>>> ----- src/main/webapp/WEB-INF/web.xml
>>>
>>> ...
>>> <resource-ref>
>>> <description>DataSource</description>
>>> <res-ref-name>jdbc/pr</res-ref-name>
>>> <res-type>javax.sql.DataSource</res-type>
>>> <res-auth>Container</res-auth>
>>> </resource-ref>
>>> ...
>>>
>>> ----- src/main/webapp/WEB-INF/jetty-env.xml
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN"
>>> "http://www.eclipse.org/jetty/configure.dtd";>
>>>
>>> <Configure class="org.eclipse.jetty.webapp.WebAppContext">
>>> <New id="prDataSource" class="org.eclipse.jetty.plus.jndi.Resource">
>>> <Arg></Arg>
>>> <Arg>jdbc/pr</Arg>
>>> <Arg>
>>> <New class="com.mchange.v2.c3p0.ComboPooledDataSource">
>>> <Set name="driverClass">com.mysql.jdbc.Driver</Set>
>>> <Set name="jdbcUrl">jdbc:mysql://localhost:3306/pr</Set>
>>> <Set name="user">user</Set>
>>> <Set name="password">pwd</Set>
>>> </New>
>>> </Arg>
>>> </New>
>>> </Configure>
>>>
>>> ------ src/main/java/com/priot/servlet/GetSession.java
>>>
>>> import javax.naming.InitialContext;
>>> import javax.naming.NamingException;
>>> import javax.sql.DataSource;
>>>
>>> InitialContext ic = new InitialContext();
>>> DataSource ds =
>>> (DataSource)ic.lookup("java:comp/env/jdbc/pr");
>>>
>>> --- Thrown on ic.lookup():
>>>
>>> 01:19:19.592 [qtp1963387170-40] ERROR com.priot.servlet.GetSession -
>>> Naming
>>> javax.naming.NoInitialContextException: Need to specify class name in
>>> environment or system property, or as an applet parameter, or in an
>>> application resource file: java.naming.factory.initial
>>> at
>>> javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
>>> ~[?:1.8.0_45]
>>> at
>>> javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
>>> ~[?:1.8.0_45]
>>> at
>>>
>>> javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:350)
>>> ~[?:1.8.0_45]
>>> at javax.naming.InitialContext.lookup(InitialContext.java:417)
>>> ~[?:1.8.0_45]
>>> at com.priot.servlet.GetSession.doPost(GetSession.java:53)
>>> [classes/:?]
>>>
>>> It's as if my jetty-env.xml isn't being seen? But it is there in the war
>>> file (along with the .swp).
>>>
>>> Am I missing something obvious?
>>>
>>> Thanks,
>>> Bill
>>> _______________________________________________
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>>>
>>>
>>>
>>>
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>>
>>
>>
>
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--
Jan Bartel <janb@xxxxxxxxxxx>
www.webtide.com
'Expert assistance from the creators of Jetty and CometD'
