Hello everyone!
I am a new in EJB3. I started learning with this link:
http://www.netbeans.org/kb/55/ejb30-jboss.html
I changed ma database on MySQL 4.1 and everything went ok to the moment when I added a new
Session Bean for Entity Classes:
public List find_new() {
| return em.createQuery("select object(o) from Access as o where
o.loginID=:a")
| .setParameter("a","1234567")
| .getResultList();
|
| }
I also added a line in the servlet:
list=af.find_new();
Then the JBoss server displayed this information:
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
org.jboss.ejb3.EJBContainer.construct(EJBContainer.java:471)
org.jboss.ejb3.AbstractPool.create(AbstractPool.java:62)
org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:48)
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:54)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:181)
org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
$Proxy191.findAll(Unknown Source)
web.test.processRequest(test.java:38)
web.test.doGet(test.java:59)
javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
I don't know what this info is about?
My persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
| <persistence version="1.0"
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_1_0.xsd">
| <persistence-unit name="gogo2-ejbPU"
transaction-type="JTA">
| <provider>org.hibernate.ejb.HibernatePersistence</provider>
| <jta-data-source>java:/bankingDS</jta-data-source>
| <class>ejb.Access</class>
| <class>ejb.Customer</class>
| <class>ejb.IdType</class>
| <properties>
| <property name="hibernate.connection.url"
value="jdbc:mysql://localhost:3306//banking"/>
| <property name="hibernate.dialect"
value="org.hibernate.dialect.MySQLDialect"/>
| <property name="hibernate.connection.driver_class"
value="com.mysql.jdbc.Driver"/>
| <property name="hibernate.hbm2ddl.auto"
value="update"/>
| </properties>
| </persistence-unit>
| </persistence>
What's wrong, what did I miss, did I forget to add some libraries, please help.
Thanks in advance.
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