Project Name: CarpoolDB, I have added the jar for this project in another application name Carpool.
While running the Carpool app I am getting following exception.
Project: Carpool.
Here i am getting exception as "carpoolService" not getting autowired while running as "Google Web application" but same runs under Tomcat and beans properly get injected.
#Controller
public class PlacesSearchController {
#Autowired
CarpoolService carpoolService=null;
public CarpoolService getCarpoolService() {
return carpoolService;
}
public void setCarpoolService(CarpoolService carpoolService) {
this.carpoolService = carpoolService;
}
}
carpool-application-context1.xml
Also I have applicationContext-security.xml, for spring security.
Project: CarpoolDB
All class are in package, com.company.carpooldb.db
public interface CarpoolService {
public boolean validateUser(User user);
}
#Service("carpoolService")
public class CarpoolServiceImpl implements CarpoolService{
#Autowired
private CarpoolDao carpoolDao=null;
public CarpoolDao getCarpoolDao() {
return carpoolDao;
}
public void setCarpoolDao(CarpoolDao carpoolDao) {
this.carpoolDao = carpoolDao;
}
#Override
public boolean validateUser(User user) {
return carpoolDao.validateUser(user);;
}
}
public interface CarpoolDao {
public boolean validateUser(User user);
}
public class CarpoolDaoImpl extends HibernateDaoSupport implements CarpoolDao{
#Override
public boolean validateUser(User user) {
// TODO Auto-generated method stub
return false;
}
}
carpool-application-context.xml
<context:annotation-config />
<context:component-scan base-package="com.onmobile" />
<context:property-placeholder location="classpath:server.properties" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="mappingResources">
<list>
<value>com\company\carpooldb\hbm\User.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect"><!--Which dialect is used of hibernate according to type of underlying database-->
org.hibernate.dialect.MySQLDialect
</prop>
<prop key="hibernate.show_sql">false</prop>
</props>
</property>
<property name="dataSource"><ref bean="dataSource"/></property>
</bean>
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<beans:property name="driverClassName"><beans:value>${cm.db.driverClassName}</beans:value></beans:property>
<beans:property name="url"><beans:value>${cm.db.url}</beans:value></beans:property>
<beans:property name="username"><beans:value>${cm.db.username}</beans:value></beans:property>
<beans:property name="password"><beans:value>${cm.db.password}</beans:value></beans:property>
<beans:property name="testOnBorrow"><beans:value>true</beans:value></beans:property>
<beans:property name="testOnReturn"><beans:value>true</beans:value></beans:property>
<beans:property name="validationQuery"><beans:value>select 1</beans:value></beans:property>
</beans:bean>
<!--Hibernate's transaction manager used for handling database transactions/manipulating data happening-->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager" >
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<bean id="carpoolDaoImpl" class="com.company.carpooldb.db.CarpoolDaoImpl">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
While running the application, I am getting exception as,
log4j:WARN Error during default initialization
java.lang.NoClassDefFoundError: java.io.FileOutputStream is a restricted class. Please see the Google App Engine developer's guide for more details.
at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:290)
.........
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:162)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:113)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
11 Nov, 2012 5:14:18 PM com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: Failed startup of context com.google.apphosting.utils.jetty.DevAppEngineWebAppContext#5e55ab{/,D:\EclipseEuropa\CarpoolingGAE\war}
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'placesSearchController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.onmobile.carpooldb.db.CarpoolService com.onmobile.carpool.controller.PlacesSearchController.carpoolService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.onmobile.carpooldb.db.CarpoolDao com.onmobile.carpooldb.db.CarpoolServiceImpl.carpoolDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
.........
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:113)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.onmobile.carpooldb.db.CarpoolService com.onmobile.carpool.controller.PlacesSearchController.carpoolService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.onmobile.carpooldb.db.CarpoolDao com.onmobile.carpooldb.db.CarpoolServiceImpl.carpoolDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:507)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
... 31 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.onmobile.carpooldb.db.CarpoolDao com.onmobile.carpooldb.db.CarpoolServiceImpl.carpoolDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)
.... at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:780)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 33 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.onmobile.carpooldb.db.CarpoolDao com.onmobile.carpooldb.db.CarpoolServiceImpl.carpoolDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:507)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
... 44 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
.... at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 46 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1412)
.... at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)
... 59 more
Caused by: java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
.... at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1457)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409)
... 66 more
11 Nov, 2012 5:14:18 PM com.google.apphosting.utils.jetty.JettyLogger warn
WARNING: Nested in org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'placesSearchController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.onmobile.carpooldb.db.CarpoolService com.onmobile.carpool.controller.PlacesSearchController.carpoolService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.onmobile.carpooldb.db.CarpoolDao com.onmobile.carpooldb.db.CarpoolServiceImpl.carpoolDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'carpoolDaoImpl' defined in class path resource [carpool-application-context.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [carpool-application-context.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.:
java.lang.NoClassDefFoundError: java.net.InetAddress is a restricted class. Please see the Google App Engine developer's guide for more details.
at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
at org.hibernate.id.AbstractUUIDGenerator.<clinit>(AbstractUUIDGenerator.java:22)
......at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)
.....
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
..... at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
The server is running at http://localhost:8888/
Why I am getting as
1. java.lang.NoClassDefFoundError: java.io.FileOutputStream is a restricted class.
I am not writing anything on file
GAE doesn't support few API that I am aware of but my application already working for MySQL and I want to support both. I mean based on property set in my property file I want to use sometime MySQL and sometime want to work with GAE datastore.
I am using spring 3.
What I should do in this case?
As Boris notes, the issue appears to be with your session factory. GAE doesn't support jdbc, and it looks like your sessionFactory is configured for mysql:
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect"><!--Which dialect is used of hibernate according to type of underlying database-->
org.hibernate.dialect.MySQLDialect
</prop>
<prop key="hibernate.show_sql">false</prop>
</props>
</property>
If you're working with an existing codebase that depends on Hibernate, you could try configuring Hibernate to run backed by Cloud SQL: https://developers.google.com/appengine/articles/using_hibernate
As for the FileOutputStream issue, I believe one of the default appenders for log4j is a FileAppender, so simply not configuring log4j won't fix it - you'll need to explicitly configure it. See if this page helps: http://blog.xam.de/2010/03/logging-in-google-appengine-for-java.html
Related
I am getting a 500 error from my Spring web application. The mentioned files are correctly named and in the correct packages. Here is the error message.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping': Invocation of init method failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.dao.CommentDAO] for bean with name 'commentDAO' defined in ServletContext resource [/WEB-INF/ghs1986-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.dao.CommentDAO
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.dao.CommentDAO] for bean with name 'commentDAO' defined in ServletContext resource [/WEB-INF/ghs1986-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.dao.CommentDAO
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.controller.PagesController] for bean with name 'pagesController' defined in ServletContext resource [/WEB-INF/ghs1986-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.controller.PagesController
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.controller.CommentController] for bean with name 'commentController' defined in ServletContext resource [/WEB-INF/ghs1986-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.controller.CommentController
Here is the relevant portion of ghs1986-servlet.xml.
<bean id="commentDAO" class="com.dao.CommentDAO">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="pagesController" class="com.controller.PagesController" />
<bean id="commentController" class="com.controller.CommentController">
<property name="commentDAO" ref="commentDAO" />
</bean>
Problem solved. I needed the #Component annotation on CommentDAO.
I'm unable to launch hello world app with Spring 4.3.6 Please, help, I don't even know what may be wrong.
Without bean messageService and aop section everything works. But I got this error with config as it is
WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'printer' defined in class path resource [config.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Cannot create inner bean '(inner bean)#c273d3' of type [org.springframework.aop.aspectj.AspectJMethodBeforeAdvice] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#c273d3': Cannot create inner bean '(inner bean)#1423665' of type [org.springframework.aop.config.MethodLocatingFactoryBean] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1423665': Initialization of bean failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [MessagePrinterService] for bean with name 'messageService' defined in class path resource [config.xml]; nested exception is java.lang.ClassNotFoundException: MessagePrinterService
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [MessagePrinterService] for bean with name 'messageService' defined in class path resource [config.xml]; nested exception is java.lang.ClassNotFoundException: MessagePrinterService
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'printer' defined in class path resource [config.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.aspectj.AspectJPointcutAdvisor#0': Cannot create inner bean '(inner bean)#c273d3' of type [org.springframework.aop.aspectj.AspectJMethodBeforeAdvice] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#c273d3': Cannot create inner bean '(inner bean)#1423665' of type [org.springframework.aop.config.MethodLocatingFactoryBean] while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#1423665': Initialization of bean failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [MessagePrinterService] for bean with name 'messageService' defined in class path resource [config.xml]; nested exception is java.lang.ClassNotFoundException: MessagePrinterService
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [MessagePrinterService] for bean with name 'messageService' defined in class path resource [config.xml]; nested exception is java.lang.ClassNotFoundException: MessagePrinterService
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:479)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
Xml config:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<bean id="printer" class="helloword.MessagePrinter">
<constructor-arg ref="message"></constructor-arg>
</bean>
<bean id="message" class="helloword.HelloWordMessage">
<constructor-arg value="Hello Spring World!"></constructor-arg>
</bean>
<bean id="messageService" class="MessagePrinterService">
</bean>
<aop:config>
<aop:aspect ref="messageService">
<aop:pointcut id="print" expression="execution(* *.print(..))"/>
<aop:before pointcut-ref="print" method="preMsg"/>
<aop:after pointcut-ref="print" method="postMsg"/>
</aop:aspect>
</aop:config>
</beans>
Classes, all is separate files:
public class HelloWordMessage implements Message{
private String msg;
public HelloWordMessage(String s) {
msg = s;
}
#Override
public String getText() {
return msg;
}
}
public class MessagePrinter implements Printer {
private Message msg;
public MessagePrinter(Message m){
msg = m;
}
#Override
public void print(){
System.out.println(msg.getText());
}
}
public class MessagePrinterService {
public MessagePrinterService(){
System.out.println("MessagePrinterService created");
}
public void preMsg(){
System.out.println("Message alert!:");
}
public void postMsg(){
System.out.println("End of message.");
}
}
public class Aplication {
public static void main(String[] args) {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("config.xml");
MessagePrinter printer = context.getBean(MessagePrinter.class);
printer.print();
context.close();
}
}
java.lang.ClassNotFoundException: MessagePrinterService
Spring cannot load the class MessagePrinterService.
Put it into a specific package and change the configuration accordingly. It should work then.
mvc-dispatcher-servlet.xml
<bean class="com.springframework.BlogController">
<property name="formView" value="Welcome" />
<property name="successView" value="Home" />
<!-- Mapping validator -->
<property name="validator">
<bean class="com.springframework.BloggerValidator" />
</property>
Error:
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping#0' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.springframework.BlogController] for bean with name 'com.springframework.BlogController#0' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.springframework.BlogController
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.springframework.BlogController] for bean with name 'com.springframework.BlogController#0' defined in ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]; nested exception is java.lang.ClassNotFoundException: com.springframework.BlogController
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
Cannot find class [com.springframework.BlogController] for bean with name 'com.springframework.BlogController'
No class called com.springframework.BlogController on your webapp's classpath.
Check if the qualified classname is correct in /WEB-INF/"*".xml
Or, check if /WEB-INF/classes directory in missing.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSource':
Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private xx.services.MessageSourceService xx.controllers.DatabaseDrivenMessageSource.messageSourceService;
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSourceService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private xx.dao.MessageSourceDAO xx.services.MessageSourceService.messageSourceDao;
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messageSourceDAO': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.hibernate.SessionFactory
xx.dao.MessageSourceDAO.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]:
Invocation of init method failed; nested exception is java.lang.NullPointerException
APPLICATION CONTEXT.XML
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
</props>
</property>
<property name="packagesToScan" value="com.abc.cmtglobal"></property>
</bean>
<context:annotation-config />
<bean id="messageSource" class="com.abc.cmtglobal.controllers.DatabaseDrivenMessageSource"></bean>
<context:component-scan base-package="com.abc.cmtglobal" >
The root cause is
Error creating bean with name 'sessionFactory' defined in class path
resource [applicationContext.xml]
So it looks like you are having a problem with your hibernate configuration.
The last line of your stacktrace shows a NullPointerException.
In eclipse or InteliJ you can set Exception breakpoints.
Set one for NullPointerException and debug the startup. You may see some NullPointerExceptions not related to your problem, but finally you will see the one that is terminating startup. Once you found the location where it happens its mostly easy to find a solution..
I am facing an issue while creating a bean for dependency injection. Here is the scenario.
I am dealing with MongoDB repository, I have also created a class which uses it. I am trying to instantiate bean instance of both.
MongoDB reporsitory:
#Repository
public interface ProductGlobalTrendRepository extends MongoRepository<ProductGlobalTrend,String>{
public ProductGlobalTrend findByPid(#Param("pId") String pId);
}
The class which is using it:
#Service
#Scope("singleton")
public class ProductTrendService {
#Autowired
#Qualifier("productGlobalTrendRepo")
ProductGlobalTrendRepository productGlobalTrendRepo;
public ProductTrendService() {
super();
}
public void setProductGlobalTrendRepo(
ProductGlobalTrendRepository productGlobalTrendRepo) {
this.productGlobalTrendRepo = productGlobalTrendRepo;
}
public ProductTrendService(ProductGlobalTrendRepository productGlobalTrendRepo) {
super();
this.productGlobalTrendRepo = productGlobalTrendRepo;
}
}
The spring's bean config xml has these entries:
<bean id="productTrendService" class="com.api.services.ProductTrendService"> </bean>
<bean id="productGlobalTrendRepo" class="com.mongodb.repository.ProductGlobalTrendRepository"> </bean>
Following is the error I am getting:
19428 [localhost-startStop-1] WARN
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
- Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'productTrendService': Injection of autowired
dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not
autowire field: com.mongodb.repository.ProductGlobalTrendRepository
com.api.services.ProductTrendService.productGlobalTrendRepo; nested
exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'productGlobalTrendRepo' defined in
class path resource [com/vstore/conf/spring-security.xml]:
Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [com.mongodb.repository.ProductGlobalTrendRepository]:
Specified class is an interface
It complains that repository is a interface class.
Can somebody please suggest a fix/workaround for this bean dependency injection ?
The problem is with the following information in your context file
<bean id="productGlobalTrendRepo"
class="com.mongodb.repository.ProductGlobalTrendRepository">
</bean>
You should create a class com.mongodb.repository.ProductGlobalTrendRepositoryImpl which implements com.mongodb.repository.ProductGlobalTrendRepository and provides implementation of its methods.
then change your bean declaration info as
<bean id="productGlobalTrendRepo"
class="com.mongodb.repository.ProductGlobalTrendRepositoryImpl">
</bean>
Behind the scene the object is created which is not possible with the interface.