tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mark Whitby" <ug82...@cs.bham.ac.uk>
Subject Re: JNDI Datasource Problem
Date Sun, 19 Feb 2006 21:10:48 GMT
Yes I'm using version 5.5.15.  What I have in the server.xml file is what is 
advised in the Tomcat set up pages.  So would it make any difference 
removing one of these or as it's ignored does it not matter?

Mark

----- Original Message ----- 
From: "Bill Barker" <wbarker@wilshire.com>
To: <users@tomcat.apache.org>
Sent: Sunday, February 19, 2006 8:40 PM
Subject: Re: JNDI Datasource Problem


> Since you have <WatchedResources />, this suggests you are using some 
> version of 5.5.  In this case, the <ResourceParams /> is ignored (you set 
> them as attributes on the <Resource /> tag).
>
> "Mark Whitby" <ug82msw@cs.bham.ac.uk> wrote in message 
> news:008201c6358a$5cb91430$0201a8c0@MarksLaptop...
>> I've done that and I now get the following error:
>>
>> org.apache.jasper.JasperException: Unable to get connection, DataSource 
>> invalid: "java.sql.SQLException: No suitable driver"
>>
>> This is what I have in my context.xml file:
>>
>> <!-- The contents of this file will be loaded for each web 
>> application -->
>> <Context>
>>
>>    <!-- Default set of monitored resources -->
>>    <WatchedResource>WEB-INF/web.xml</WatchedResource>
>>
>>    <!-- Uncomment this to disable session persistence across Tomcat 
>> restarts -->
>>    <!--
>>    <Manager pathname="" />
>>    -->
>>
>> <ResourceLink
>>            name="jdbc/TestDB"
>>            global="jdbc/TestDB"
>>            type="javax.sql.DataSource" auth="Container" />
>>
>>
>> </Context>
>>
>>
>> Any further suggestions?
>>
>> Mark
>> ----- Original Message ----- 
>> From: "Parsons Technical Services" <parsonstechnical@earthlink.net>
>> To: "Tomcat Users List" <users@tomcat.apache.org>
>> Sent: Sunday, February 19, 2006 7:02 PM
>> Subject: Re: JNDI Datasource Problem
>>
>>
>>> Look up resource link. It goes in the context.xml
>>>
>>> Also only put the jar file in the common/lib and no where else.
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "Mark Whitby" <ug82msw@cs.bham.ac.uk>
>>> To: "Tomcat Users List" <users@tomcat.apache.org>
>>> Sent: Sunday, February 19, 2006 12:53 PM
>>> Subject: JNDI Datasource Problem
>>>
>>>
>>> Hey guys,
>>>
>>> Thanks for the help with the previous problem I had, I've managed to 
>>> solve them now thanks to your help.  But now I'm having a problem with 
>>> setting up a DataSource connection.  I've followed the example word for 
>>> word and got the following error:
>>>
>>> javax.servlet.ServletException: Unable to get connection, DataSource 
>>> invalid: "org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create 
>>> JDBC driver of class '' for connect URL 'null'"
>>>
>>> I did a google search for this but only managed to find something on the 
>>> NetBeans website which wasn't much help.  I've edited the server.xml 
>>> file as stated, placed the relevent jar file 
>>> (mysql-connector-java-3.1.12-bin.jar) in the lib folder in my web 
>>> application and in the /common/lib folder in the Tomcat home folder and 
>>> I've reset the server and I'm still getting the same problem.
>>>
>>> I'm using MySQL, database is called 'fyptest' and the table is called 
>>> 'testdata'.  So where am I going wrong?
>>>
>>> Many thanks
>>>
>>> Mark Whitby
>>>
>>> Server.xml file:
>>>
>>> <Context path="/DBTest" docBase="DBTest"
>>>        debug="5" reloadable="true" crossContext="true">
>>>
>>>  <Logger className="org.apache.catalina.logger.FileLogger"
>>>             prefix="localhost_DBTest_log." suffix=".txt"
>>>             timestamp="true"/>
>>>
>>>  <Resource name="jdbc/TestDB"
>>>               auth="Container"
>>>               type="javax.sql.DataSource"/>
>>>
>>>  <ResourceParams name="jdbc/TestDB">
>>>    <parameter>
>>>      <name>factory</name>
>>>      <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
>>>    </parameter>
>>>
>>>    <!-- Maximum number of dB connections in pool. Make sure you
>>>         configure your mysqld max_connections large enough to handle
>>>         all of your db connections. Set to 0 for no limit.
>>>         -->
>>>    <parameter>
>>>      <name>maxActive</name>
>>>      <value>100</value>
>>>    </parameter>
>>>
>>>    <!-- Maximum number of idle dB connections to retain in pool.
>>>         Set to -1 for no limit.  See also the DBCP documentation on this
>>>         and the minEvictableIdleTimeMillis configuration parameter.
>>>         -->
>>>    <parameter>
>>>      <name>maxIdle</name>
>>>      <value>30</value>
>>>    </parameter>
>>>
>>>    <!-- Maximum time to wait for a dB connection to become available
>>>         in ms, in this example 10 seconds. An Exception is thrown if
>>>         this timeout is exceeded.  Set to -1 to wait indefinitely.
>>>         -->
>>>    <parameter>
>>>      <name>maxWait</name>
>>>      <value>10000</value>
>>>    </parameter>
>>>
>>>    <!-- MySQL dB username and password for dB connections  -->
>>>    <parameter>
>>>     <name>username</name>
>>>     <value>javauser</value>
>>>    </parameter>
>>>    <parameter>
>>>     <name>password</name>
>>>     <value>pilks2</value>
>>>    </parameter>
>>>
>>>    <!-- Class name for the old mm.mysql JDBC driver - uncomment this 
>>> entry and comment next
>>>         if you want to use this driver - we recommend using Connector/J 
>>> though
>>>    <parameter>
>>>       <name>driverClassName</name>
>>>       <value>org.gjt.mm.mysql.Driver</value>
>>>    </parameter>
>>>     -->
>>>
>>>    <!-- Class name for the official MySQL Connector/J driver -->
>>>    <parameter>
>>>       <name>driverClassName</name>
>>>       <value>com.mysql.jdbc.Driver</value>
>>>    </parameter>
>>>
>>>    <!-- The JDBC connection url for connecting to your MySQL dB.
>>>         The autoReconnect=true argument to the url makes sure that the
>>>         mm.mysql JDBC Driver will automatically reconnect if mysqld 
>>> closed the
>>>         connection.  mysqld by default closes idle connections after 8 
>>> hours.
>>>         -->
>>>    <parameter>
>>>      <name>url</name>
>>>
>>> <value>jdbc:mysql://localhost:3306/fyptest?autoReconnect=true</value>
>>>    </parameter>
>>>  </ResourceParams>
>>> </Context>
>>>
>>> web.xml file:
>>>
>>>  <resource-ref>
>>>      <description>DB Connection</description>
>>>      <res-ref-name>jdbc/TestDB</res-ref-name>
>>>      <res-type>javax.sql.DataSource</res-type>
>>>      <res-auth>Container</res-auth>
>>>  </resource-ref>
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
> 


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message