I am trying to get pool of connections using jndi lookup but have a following error: java.sql.SQLException: Cannot create JDBC driver of class '' for connect URL 'null'
My context xml placed in web/WEB-INF folder near web.xml
<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" crossContext="true" reloadable="true" path="patient/account">
<Resource
name="jdbc/pharmacy"
author="Container"
type="javax.sql.DataSource"
maxActive="32"
maxIdle="8"
maxWait="10000"
username="root"
password="23810198vas"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/pharmacy" />
</Context>
Context envCtx = new InitialContext();
DataSource ds = (DataSource)envCtx.lookup("java:comp/env/jdbc/pharmacy");
Connection connection = ds.getConnection();
For Tomcat , context.xml should be under META-INF and META-INF folder should be at the same level as WEB-INF folder.
Related
sorry for my bad english, (Im french :-D).
I want work with TomEE for JPA, but my configuration is bad i think.
I receive a exception when i try to connecte to my database (Mysql).
persistence.xml
<persistence-unit name="elevage" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>elevage</jta-data-source>
<non-jta-data-source>elevageUnmanaged</non-jta-data-source>
<class>com.test.ejb.BeanAnimal</class>
<properties>
<property name="openjpa.jdbc.DBDictionary" value="mysql" />
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />
</properties>
</persistence-unit>
tomee.xml
<Resource id="elevage" type="DataSource">
JdbcDriver com.mysql.jdbc.Driver
JdbcUrl jdbc:mysql://localhost:3306/elevage2?useLegacyDatetimeCode=false&serverTimezone=Australia/Sydney&useSSL=false
UserName root
Password pass
JtaManaged true
DefaultAutoCommit false
</Resource>
<Resource id="elevageUnmanaged" type="DataSource">
JdbcDriver com.mysql.jdbc.Driver
JdbcUrl jdbc:mysql://localhost:3306/elevage2?useLegacyDatetimeCode=false&serverTimezone=Australia/Sydney&useSSL=false
UserName root
Password pass
JtaManaged false
</Resource>
Exception
AVERTISSEMENT: Unexpected exception from beforeCompletion; transaction will roll back
<openjpa-2.4.1-r422266:1730418 fatal general error> org.apache.openjpa.persistence.PersistenceException: user lacks privilege or object not found: OPENJPA_SEQUENCE_TABLE {SELECT SEQUENCE_VALUE FROM OPENJPA_SEQUENCE_TABLE WHERE ID = ? FOR UPDATE} [code=-5501, state=42501]
Request is a "SELECT" and i want take all data in my database. I have see documentation but the problem persiste.
Thank all for your answer !
(if you need more file, tell me :-) )
After a long time tearing my hair, I found a solution, if it can save time, here it is:
2 Configurations!
In development:
tomee.xml is not used, it is necessary to configure openejb.xml whose path is specified in the eclipse console, attention, the access is by hidden file
Path for my machine (Linux):
/home/user/eclipse-workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp2/conf/openejb.xml
At the bottom of the file, you have section "Resource", the configuration is identical to tomee.xml (you can find documentation at this adress : documentation for configuration tomee.xml
In production:
we forget openejb.xml, a configuration is identical but in tomee.xml
to finish, here is my configuration:
persistence.xml
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="elevage" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>MyDataBase</jta-data-source>
<non-jta-data-source>MyDataBaseUnmanaged</non-jta-data-source>
<class>com.test.ejb.BeanAnimal</class>
<!-- <class>com.test.ejb.BeanUser</class>-->
<properties>
<property name="openjpa.jdbc.DBDictionary" value="mysql" />
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />
</properties>
</persistence-unit>
openejb.xml (in development) and tomee.xml (in production)
<Resource id="MyDataBase" type="DataSource">
JdbcDriver com.mysql.jdbc.Driver
JdbcUrl jdbc:mysql://localhost:3306/elevage?useLegacyDatetimeCode=false&serverTimezone=Australia/Sydney&useSSL=false
UserName root
Password pass
JtaManaged true
</Resource>
<Resource id="MyDataBaseUnmanaged" type="DataSource">
JdbcDriver com.mysql.jdbc.Driver
JdbcUrl jdbc:mysql://localhost:3306/elevage?useLegacyDatetimeCode=false&serverTimezone=Australia/Sydney&useSSL=false
UserName root
Password pass
JtaManaged false
</Resource>
I am using JBoss 7.1, and I'm trying to create a Database Connection Pool through Application Server. I'm using a mysql DB, but I tried also with a Postgre database and the error is just the same. Everything seems to be OK, but when I try to access to the application, it appears an error on console that advises me that the connection with the database was failed. My code is the following:
My Jboss standalone.xml.
<datasource jndi-name="java:jboss/jdbc/exampleDS" pool-name="jdbc/exampleDS" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://127.0.0.1:3306/example?useSSL=false</connection-url>
<driver>mysql-connector-java-5.1.43-bin.jar</driver>
<pool>
<min-pool-size>10</min-pool-size>
<max-pool-size>100</max-pool-size>
<prefill>true</prefill>
</pool>
<security>
<user-name>root</user-name>
<password>password</password>
</security>
<validation>
<valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
<exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/>
</validation>
</datasource>
<driver name="mysql-connector-java-5.1.43-bin.jar" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlDataSource</xa-datasource-class>
</driver>
My web.xml
<resource-ref>
<description>example</description>
<res-ref-name>jdbc/exampleDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
My javacode
private ServiceLocator() {
try {
this.initCtx = new InitialContext();
this.envCtx = (Context) initCtx.lookup("java:comp/env");
DataSource ds = (DataSource)
envCtx.lookup("jdbc/exampleDS");
} catch (NamingException e) {
ApplicationException apRE = new ApplicationException(ErrorCode.E_JDNI001, e);
LogService.getLog().fatal(apRE.getMessage(), apRE);
throw apRE;
}
}
Finally, when I start my jboss server, none error appears, but the console said that the tables of my DB don't exist.
I appreciate help <3
I had fixed the error.
First thing to do is creating a jboss-web.xml where web.xml, in my case, webapp/WEB-INF. It must be similar to the following:
<jboss-web>
<resource-ref>
<res-ref-name>jdbc/exampleDS</res-ref-name>
<jndi-name>java:jboss/jdbc/exampleDS</jndi-name>
</resource-ref>
</jboss-web>
Once that is created, we must create a module.xml inside of modules->com->mysql->main, containing the following:
<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.1" name="com.mysql">
<resources>
<resource-root path="mysql-connector-java-5.1.43-bin.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
You have to insert also, the .jar that you used also inside of the main dir.
Regarding the javacode, you need to change the initCtx.lookup("java:comp/env"); for this: initCtx.lookup("java:");
That's all :)
I have problem context xml file.
I have wrote below mentioned code but, i couldn't connect to database:
Resource name = "jdbc/Examsite" auth="Container"
type="javax.sql.DataSource" maxActive="20" maxIdle="30"
maxWait="10000" driverClassName="com.mysql.jdbc.Driver"
url=" jdbc:mysql://http://34.209.206.56:3306/oracle_exam_last "
username="****" password="****" />
You have a problem in your URL :
url=" jdbc:mysql://http://34.209.206.56:3306/oracle_exam_last "
//------------------^^^--------------------------------------^
You should not specify the protocole http just the ip and the port number and the database name, also don't make a space in your url :
url=" jdbc:mysql://34.209.206.56:3306/oracle_exam_last"
I have been trying to configure mysql as a datasource in wildfly. I am not sure what i am missing out, i get an error on startup .
I have the mysql-connector-java-5.0.8-bin.jar and the module.xml in the folder:
"/wildfly-8.1.0.Final/modules/system/layers/base/com/mysql/main"
below are the files
module.xml
<module xmlns="urn:jboss:module:1.1"
name="com.mysql">
<resources>
<resource-root path="mysql-connector-java-5.0.8.jar"/>
<!-- Insert resources here -->
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
<module name="javax.servlet.api" optional="true"/>
</dependencies>
</module>
standalone.xml
<datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">
<connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
<driver>h2</driver>
<security>
<user-name>sa</user-name>
<password>sa</password>
</security>
</datasource>
<datasource jta="true" jndi-name="java:jboss/datasources/proj" pool-name="proj" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://localhost:3306</connection-url>
<driver>mysql</driver>
<security>
<user-name>root</user-name>
<password>admin123</password>
</security>
<statement>
<prepared-statement-cache-size>32</prepared-statement-cache-size>
<share-prepared-statements>true</share-prepared-statements>
</statement>
</datasource>
<drivers>
<driver name="mysql" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
I have tested the jdbc connectivity with a standalone program in eclipse and it worked
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class ConnectSql {
public static void main(String []args){
String userName = "root";
String pass = "admin123";
String url = "jdbc:mysql://localhost/";
String driver ="com.mysql.jdbc.Driver";
String db = "proj";
try{
//registering the driver.
Class.forName(driver);
Connection con = DriverManager.getConnection(url+db,userName,pass);
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("select f_name from t_users");
while(rs.next()){
System.out.println("name :"+rs.getString(1));
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch(ClassNotFoundException cnf){
cnf.printStackTrace();
}
}
}
Referred to the below link and modified the module.xml
Wildfly 8.0.0 mysql problems with datasource
Here is a the error log i get on start up
02:45:17,169 ERROR [org.jboss.as.controller.management-operation]
(Controller Boot Thread) JBAS014613: Operation ("add") failed -
address: ([
("subsystem" => "datasources"),
("data-source" => "proj") ]) - failure description: {"JBAS014771: Services with missing/unavailable dependencies" => [
"jboss.data-source.java:jboss/datasources/proj is missing [jboss.jdbc-driver.mysql]",
"jboss.driver-demander.java:jboss/datasources/proj is missing [jboss.jdbc-driver.mysql]" ]} 02:45:17,175 ERROR
[org.jboss.as.controller.management-operation] (Controller Boot
Thread) JBAS014613: Operation ("add") failed - address: ([
("subsystem" => "datasources"),
("data-source" => "proj") ]) - failure description: {
"JBAS014771: Services with missing/unavailable dependencies" => [
"jboss.data-source.java:jboss/datasources/proj is missing [jboss.jdbc-driver.mysql]",
"jboss.driver-demander.java:jboss/datasources/proj is missing [jboss.jdbc-driver.mysql]"
],
"JBAS014879: One or more services were unable to start due to one or more indirect dependencies not being available." => {
"Services that were unable to start:" => [
"jboss.data-source.reference-factory.proj",
"jboss.naming.context.java.jboss.datasources.proj"
],
"Services that may be the cause:" => ["jboss.jdbc-driver.mysql"]
} }
To resolve the mysql datasource configuration issue on Wildfly i used the admin console to add the datasource and test it.
If you login to the web console and find the datasource you tried configuring disable
that a remove it . The standalone.xml and the module.xml get reset to the orginal.
Steps for accessing web console
Configure a new datasource :
name :mysql
JNDI :java:jboss/datasources/proj
Click next and enter the url (i used the below) and click enable and then click test
url : jdbc:mysql://localhost/proj
The test should show success
The changes to the standalone.xml and the module.xml are automatically made .
If you restart the server now it should start without any errors and you should be able to access the database from your web project
I have working configuration of mysql driver on wildfly.
<datasources>
// ...
<drivers>
// ...
<driver name="mysql" module="com.mysql.jdbc">
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<driver-class>com.mysql.jdbc.Driver</driver-class>
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
The little difference seems to be presence of "driver-class" tag.
I hope it will help.
(Deploying mysql driver as a deployment also works and it's recommended way. https://docs.jboss.org/author/display/WFLY8/DataSource+configuration )
[edit]
I have mysql module under wildfly/modules/com/mysql/jdbc/main/ . I've noticed just now you module path doesn't correspond to module name. And I haven't find any doc's just yet, but I don't think you should mess with modules/system directory.
module.xml
<?xml version="1.0" ?>
<module xmlns="urn:jboss:module:1.1" name="com.mysql.jdbc">
<resources>
<resource-root path="mysql-connector-java-5.1.31-bin.jar"/>
</resources>
<dependencies>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
Two things: I just got mine working, and have the driver and xml located in $JBOSS_HOME/modules/com/mysql/jdbc/main - I'm fairly new with this as well so I'm not sure if that matters. Another thing: I don't know if it is just a typo, but if it was just copied and pasted it looks like your JAR name is incorrect
<resource-root path="mysql-connector-java-5.0.8.jar"/>
when it should be
<resource-root path="mysql-connector-java-5.0.8-bin.jar"/>
I forgot the .jar in mine, and that ended up fixing it. Hope that helps!
This may happen when you download the mysql connector zip and uploading the zip as a deployment. But the correct way is to unzip your download and point to the contained jar.
There are three ways using which you can simply create datasource into wildfly
Using admin console
Manually adding into standalone.xml
Creating datasource file that is xml file.
Go to WildFly directory/standalone/deployments
Simplest way to create datasource xml with following content
<datasources xmlns="http://www.jboss.org/ironjacamar/schema">
<datasource jndi-name="APP_DS" pool-name="APP_DS" enabled="true" use-ccm="false">
<connection-url>jdbc:mysql://localhost:3306/DB_NAME</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<driver>mysql</driver>
<!-- sql to call when connection is created -->
<new-connection-sql>SELECT 1</new-connection-sql>
<pool>
<min-pool-size>5</min-pool-size>
<max-pool-size>50</max-pool-size>
</pool>
<security>
<user-name>username</user-name>
<password>password</password>
</security>
<!-- sql to call on an existing pooled connection when it is obtained from pool -->
<validation>
<check-valid-connection-sql>SELECT 1</check-valid-connection-sql>
</validation>
<timeout>
<blocking-timeout-millis>300000</blocking-timeout-millis>
<idle-timeout-minutes>5</idle-timeout-minutes>
</timeout>
<statement>
<track-statements>true</track-statements>
</statement>
</datasource>
</datasources>
I'm attempting create a simple web app with a MySQL backend. I'm able to deploy my .ear in Geronimo. However, when I submit my form to persist some stuff to the DB via OpenJPA I get the following error (below is my stacktrace):
Caused by: org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property.
My Project is an Enterprise Application Project (AReyes) with a web module (AReyesAdminWeb) and an ejb module (AReyesEJB).
My persistence.xml
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0">
<persistence-unit name="AReyesPersistUnit" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>AReyesMySql</jta-data-source>
<class>com.areyes.entity.Admin</class>
<properties>
<property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema"/>
</properties>
</persistence-unit>
</persistence>
The file is located in AReyesEJB/ejbModule/META-INF
What I'm using
Geronimo 2.2.1 with Tomcat 6
MySQL 5.5.11
OpenJPA 1.2.2
Eclipse Indego Release
OS X 10.6.7
StackTrace
Caused by: org.apache.openejb.OpenEJBException: Error while creating bean com.areyes.session.AdminManager: Error invoking constructor: public com.areyes.session.AdminManager()
at org.apache.openejb.InjectionProcessor.construct(InjectionProcessor.java:120)
at org.apache.openejb.InjectionProcessor.createInstance(InjectionProcessor.java:83)
at org.apache.openejb.core.stateless.StatelessInstanceManager.ceateInstance(StatelessInstanceManager.java:204)
at org.apache.openejb.core.stateless.StatelessInstanceManager.getInstance(StatelessInstanceManager.java:165)
at org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
at org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:217)
at org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:77)
at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:282)
... 23 more
Caused by: org.apache.xbean.recipe.ConstructionException: Error invoking constructor: public com.areyes.session.AdminManager()
at org.apache.xbean.recipe.ReflectionUtil$ConstructorFactory.create(ReflectionUtil.java:962)
at org.apache.xbean.recipe.ObjectRecipe.internalCreate(ObjectRecipe.java:276)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:96)
at org.apache.xbean.recipe.AbstractRecipe.create(AbstractRecipe.java:61)
at org.apache.openejb.InjectionProcessor.construct(InjectionProcessor.java:118)
... 30 more
Caused by: <openjpa-1.2.2-r422266:898935 fatal user error> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property.
at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:74)
at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:784)
at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:561)
at org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRepository.java:1344)
at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:505)
at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:430)
at org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:103)
at org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68)
at org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:863)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:854)
at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:638)
at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:183)
at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:142)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:192)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:145)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:56)
at com.areyes.session.AdminManager.<init>(AdminManager.java:22)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.xbean.recipe.ReflectionUtil$ConstructorFactory.create(ReflectionUtil.java:952)
... 34 more
com.areyes.session.AdminManager is a #Stateless bean that has been injected into a servlet in AReyesAdminWeb (with #EJB anno). Here's the constrcutor:
#Stateless
public class AdminManager implements AdminService {
private EntityManagerFactory fac;
private EntityManager em;
public AdminManager () {
fac = Persistence.createEntityManagerFactory("AReyesPersistUnit", System.getProperties());
em = fac.createEntityManager();
}
The behavior seem like my web app is unaware of my persistence.xml in my ejb app. I wonder if I bundled everything up correctly.
I added this to my application.xml:
<module>
<connector>tranql-connector-mysql-local-1.5.rar</connector>
</module>
Then I added this to my geronimo-application.xml:
<app:module>
<app:connector>tranql-connector-mysql-local-1.5.rar</app:connector>
<app:alt-dd>mysql-plan.xml</app:alt-dd>
</app:module>
In my EA Project (AReyes) I've added mysql-plan.xml in the same folder with my META-INF. Then I imported the tranql-connector-mysql-local-1.5.rar from my Geronimo folder.
It sounds like the web app cannot find persistence.xml on its class path. From reading this thread you could have the same problem. Try moving persistence.xml to the following location and see how you go...
WEB-INF/classes/META-INF/persistence.xml