I am using Spring Data Neo4j 4(SDN4) from the example project SDN4-northwind(https://github.com/amorgner/sdn4-northwind)，when I try to get the Neo4jTemplate bean，I get the error message like this.
Does anyone know how to get the Neo4jTemplate bean from SDN4?
Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.data.neo4j.template.Neo4jTemplate] is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:371)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:331)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:968)
at org.neo4j.example.northwind.Run.main(Run.java:34)
Here is the Configuration file
package org.neo4j.example.northwind;
import org.neo4j.ogm.session.Session;
import org.neo4j.ogm.session.SessionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.neo4j.config.Neo4jConfiguration;
import org.springframework.data.neo4j.repository.config.EnableNeo4jRepositories;
import org.springframework.data.neo4j.server.Neo4jServer;
import org.springframework.data.neo4j.server.RemoteServer;
import org.springframework.transaction.annotation.EnableTransactionManagement;
#Configuration
#EnableNeo4jRepositories("org.neo4j.example.northwind.repository")
#EnableTransactionManagement
public class AppContext extends Neo4jConfiguration {
public static final String NEO4J_HOST = "http://localhost:";
public static final int NEO4J_PORT = 7474;
#Override
public SessionFactory getSessionFactory() {
System.setProperty("username", "neo4j");
System.setProperty("password", System.getProperty("password","osp"));
return new SessionFactory("org.neo4j.example.northwind.model");
}
#Bean
#Override
public Neo4jServer neo4jServer() {
return new RemoteServer(NEO4J_HOST + NEO4J_PORT);
}
#Bean
#Override
//#Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
public Session getSession() throws Exception {
return super.getSession();
}
}
Assdd
#Bean
public Neo4jOperations getNeo4jTemplate() throws Exception {
return new Neo4jTemplate(getSession());
}
to AppContext and then #Autowired Neo4jOperations neo4jTemplate;
Related
SecurityConfig
package com.book.entity.security.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Autowired
private Environment env;
#Autowired
private SecurityService securityService;
private BCryptPasswordEncoder passwordEncoder() {
return SecurityUtility.passwordEncoder();
}
private static final String[] PUBLIC_MATCHERS = { "/css/**", "/js/**", "/image/**", "/", "/myAccount" };
#Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().
/* antMatchers("/**"). */
antMatchers(PUBLIC_MATCHERS).permitAll().anyRequest().authenticated();
http.csrf().disable().cors().disable().formLogin().failureUrl("/login?error").defaultSuccessUrl("/")
.loginPage("/login").permitAll().and().logout()
.logoutRequestMatcher(new AntPathRequestMatcher("/logout")).logoutSuccessUrl("/?logout")
.deleteCookies("remember-me").permitAll().and().rememberMe();
}
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(securityService).passwordEncoder(passwordEncoder());
}
}
SecurityUtility
package com.book.entity.security.impl;
import java.security.SecureRandom;
import java.util.Random;
import org.springframework.context.annotation.Bean;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Component;
#Component
public class SecurityUtility {
private static final String SALT = "salt"; // Salt should be protected carefully
#Bean
public static BCryptPasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder(12, new SecureRandom(SALT.getBytes()));
}
#Bean
public static String randomPassword() {
String SALTCHARS = "ABCEFGHIJKLMNOPQRSTUVWXYZ1234567890";
StringBuilder salt = new StringBuilder();
Random rnd = new Random();
while (salt.length() < 18) {
int index = (int) (rnd.nextFloat() * SALTCHARS.length());
salt.append(SALTCHARS.charAt(index));
}
String saltStr = salt.toString();
return saltStr;
}
}
UserRepository
package com.book.entity.security.impl;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.book.entity.User;
#Repository
public interface UserRepository extends JpaRepository<User, Long>{
User findByUsername(String userName);
}
SecurityService
package com.book.entity.security.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import com.book.entity.User;
#Service
public class SecurityService implements UserDetailsService {
#Autowired
private UserRepository userRepository;
#Override
public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
User user = userRepository.findByUsername(userName);
if (null == user) {
throw new UsernameNotFoundException("Username not found");
}
return user;
}
}
Error:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'securityService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityService': Unsatisfied dependency expressed through field 'userRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract com.book.entity.User com.book.entity.security.impl.UserRepository.findByUsername(java.lang.String)! Unable to locate Attribute with the the given name [username] on this ManagedType [com.book.entity.User]
It seems BeanPostProcessor interface implementation is having impact on #ServiceActivator. What should be the way to use BeanPostProcessor with #ServiceActivator. Thanks.
Complete logs are available here logs
Following is Java Config used for SFTP -
package com.ftp.example;
import java.io.File;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.expression.common.LiteralExpression;
import org.springframework.integration.annotation.Gateway;
import org.springframework.integration.annotation.IntegrationComponentScan;
import org.springframework.integration.annotation.MessagingGateway;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.config.EnableIntegration;
import org.springframework.integration.file.FileNameGenerator;
import org.springframework.integration.file.remote.session.CachingSessionFactory;
import org.springframework.integration.file.remote.session.SessionFactory;
import org.springframework.integration.sftp.outbound.SftpMessageHandler;
import org.springframework.integration.sftp.session.DefaultSftpSessionFactory;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHandler;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import com.jcraft.jsch.ChannelSftp.LsEntry;
#Configuration
#EnableScheduling
#EnableAspectJAutoProxy
#EnableAsync
#IntegrationComponentScan
#EnableIntegration
#EnableBatchProcessing
#PropertySource("file:C:\\DEV\\workspace_oxygen\\ftp-example\\ftp-example.properties")
public class DependencySpringConfiguration {
private Logger LOG = LoggerFactory.getLogger(DependencySpringConfiguration.class);
#Value("${project.name}")
private String applicationName;
#Value("${${project.name}.ftp.server}")
private String server;
#Value("${${project.name}.ftp.port}")
int port;
#Value("${${project.name}.ftp.username}")
private String username;
#Value("${${project.name}.ftp.password}")
private String password;
#Value("${${project.name}.ftp.remote.directory}")
private String remoteDirectory;
#Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
#Bean
public ProcessStarter processStarter() {
return new ProcessStarter();
}
/* #Bean
public LogInjector logInjector() {
return new LogInjector();
}*/
#Bean
public FTPOutService fTPOutService() {
return new FTPOutService();
}
#Bean
public SessionFactory<LsEntry> sftpSessionFactory() {
DefaultSftpSessionFactory sf = new DefaultSftpSessionFactory();
sf.setHost(server);
sf.setPort(port);
sf.setUser(username);
sf.setPassword(password);
sf.setAllowUnknownKeys(true);
return new CachingSessionFactory<LsEntry>(sf);
}
#Bean
#ServiceActivator(inputChannel = "toSftpChannel")
public MessageHandler handler() {
SftpMessageHandler handler = new SftpMessageHandler(sftpSessionFactory());
handler.setRemoteDirectoryExpression(new LiteralExpression(remoteDirectory));
handler.setFileNameGenerator(new FileNameGenerator() {
#Override
public String generateFileName(Message<?> message) {
return "fileNameToBeFtp.txt";
}
});
return handler;
}
#MessagingGateway
public interface MyGateway {
#Gateway(requestChannel = "toSftpChannel")
void sendToSftp(File file);
}
}
And We are calling gateway object like this while doing SFTP
Main class
public class FtpExample {
public static String[] ARGS;
private static final Logger LOG = LoggerFactory.getLogger(FtpExample.class);
public static void main(String[] args) throws Exception {
ARGS = args;
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(DependencySpringConfiguration.class);
ProcessStarter processStarter = ctx.getBean(ProcessStarter.class);
processStarter.startService();
}
}
Other classes -
public class ProcessStarter {
#Inject
private FTPOutService ftpOutService;
public void startService() {
ftpOutService.ftpToBbg();
}
}
public class FTPOutService {
private static Logger log = LoggerFactory.getLogger(FTPOutService.class);
#Inject
private ApplicationContext appContext;
public void ftpToBbg() {
log.info("Starting FTP out process...");
File file = null;
try {
file = new File("C:\\Temp\\log\\debug\\ftp\\priceindex\\for-upload\\ftp-example.txt.REQ");
MyGateway gateway = appContext.getBean(MyGateway.class);
gateway.sendToSftp(file);
log.info("File {} written successfully on remote server", file);
} catch (Exception e) {
log.error("Error while uploading file {}", file, e);
}
}
}
Above code is working fine unless I am not adding following bean declaration in above defined Java Config -
public LogInjector logInjector() {
return new LogInjector();
}
Above bean definition is having following implementation -
public class LogInjector implements BeanPostProcessor {
#Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
#Override
public Object postProcessBeforeInitialization(final Object bean, String beanName) throws BeansException {
ReflectionUtils.doWithFields(bean.getClass(), new FieldCallback() {
#Override
public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {
// make the field accessible if defined private
ReflectionUtils.makeAccessible(field);
if (field.getAnnotation(Log.class) != null) {
if (org.slf4j.Logger.class == field.getType()) {
org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(bean.getClass());
field.set(bean, log);
} else if (java.util.logging.Logger.class == field.getType()) {
java.util.logging.Logger log = java.util.logging.Logger.getLogger(bean.getClass().toString());
field.set(bean, log);
}
}
}
});
return bean;
}
}
#Retention(RetentionPolicy.RUNTIME)
#Target(ElementType.FIELD)
#Documented
public #interface Log {
}
Once any BeanPostProcessor implementation is added in Java Config, it creates problem and application not able to see toSftpChannel -
org.springframework.beans.factory.NoSuchBeanDefinitionException: No
bean named 'toSftpChannel' available at
org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:685)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1199)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:284)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at
org.springframework.integration.support.channel.BeanFactoryChannelResolver.resolveDestination(BeanFactoryChannelResolver.java:88)
at
org.springframework.integration.support.channel.BeanFactoryChannelResolver.resolveDestination(BeanFactoryChannelResolver.java:45)
at
org.springframework.integration.gateway.MessagingGatewaySupport.getRequestChannel(MessagingGatewaySupport.java:327)
at
org.springframework.integration.gateway.MessagingGatewaySupport.send(MessagingGatewaySupport.java:368)
at
org.springframework.integration.gateway.GatewayProxyFactoryBean.invokeGatewayMethod(GatewayProxyFactoryBean.java:477)
at
org.springframework.integration.gateway.GatewayProxyFactoryBean.doInvoke(GatewayProxyFactoryBean.java:429)
at
org.springframework.integration.gateway.GatewayProxyFactoryBean.invoke(GatewayProxyFactoryBean.java:420)
at
org.springframework.integration.gateway.GatewayCompletableFutureProxyFactoryBean.invoke(GatewayCompletableFutureProxyFactoryBean.java:65)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy57.sendToSftp(Unknown Source)
Looks what you have:
#Bean
public LogInjector logInjector() {
return new LogInjector();
}
If you declare BeanPostProcessors as #Bean you have to specify them with the static modifier: https://docs.spring.io/spring/docs/5.0.0.RELEASE/spring-framework-reference/core.html#beans-factorybeans-annotations
You may declare #Bean methods as static, allowing for them to be called without creating their containing configuration class as an instance. This makes particular sense when defining post-processor beans, e.g. of type BeanFactoryPostProcessor or BeanPostProcessor, since such beans will get initialized early in the container lifecycle and should avoid triggering other parts of the configuration at that point.
I am working demo Spring boot application with integration of Redis.
I have referred various site reference but lastly I preferred to follow this: http://www.baeldung.com/spring-data-redis-tutorial
My code is almost same as given in above link. Only change is that I have autowired StudentRepository in my RestController class.
Now when I try to do maven-install at that time it gives me error that
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'studentController': Unsatisfied dependency expressed through field 'studentRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentRepositoryImpl' defined in file [/home/klevu/work/Nimesh/Spring Boot Workspace/bootDemo/target/classes/com/example/demo/redis/repository/StudentRepositoryImpl.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class [class com.example.demo.redis.repository.StudentRepositoryImpl]: Common causes of this problem include using a final class or a non-visible class; nested exception is java.lang.IllegalArgumentException: No visible constructors in class com.example.demo.redis.repository.StudentRepositoryImpl
When I tried to keep constructor public, it creates build successfully. But I don't know I should do it or not here. I was thinking that rather than Autowiring constructor, I should be able to do setter injection. I also tried below:
#Autowired
private RedisTemplate<String, Student> redisTemplate;
But it is also not working.
package com.example.demo.redis.repository;
import java.util.Map;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Repository;
import com.example.demo.redis.bean.Student;
#Repository
public class StudentRepositoryImpl implements StudentRepository {
private static final String KEY = "Student";
//#Autowired
private RedisTemplate<String, Student> redisTemplate;
private HashOperations<String, String, Student> hashOps;
#Autowired
private StudentRepositoryImpl(RedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
#PostConstruct
private void init() {
hashOps = redisTemplate.opsForHash();
}
#Override
public void saveStudent(Student person) {
hashOps.put(KEY, person.getId(), person);
}
#Override
public void updateStudent(Student person) {
hashOps.put(KEY, person.getId(), person);
}
#Override
public Student findStudent(String id) {
return hashOps.get(KEY, id);
}
#Override
public Map<String, Student> findAllStudents() {
return hashOps.entries(KEY);
}
#Override
public void deleteStudent(String id) {
hashOps.delete(KEY, id);
}
}
RedisConfiguration are default and code as below:
package com.example.demo.configuration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
#Configuration
public class RedisConfiguration {
#Bean
JedisConnectionFactory jedisConnectionFactory() {
return new JedisConnectionFactory();
}
#Bean
public RedisTemplate<String, Object> redisTemplate(){
RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(jedisConnectionFactory());
return template;
}
}
Spring boot main entry point is declared as below:
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import org.springframework.data.redis.repository.configuration.EnableRedisRepositories;
#SpringBootApplication
#EnableMongoRepositories(basePackages = {"com.example.demo.mongo.repository"} )
#EnableRedisRepositories(basePackages = {"com.example.demo.redis.repository"})
public class BootDemoApplication {
public static void main(String[] args) {
SpringApplication.run(BootDemoApplication.class, args);
}
}
Demo controller to test redis is as below:
package com.example.demo.controller;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.example.demo.redis.bean.Student;
import com.example.demo.redis.repository.StudentRepository;
#RestController
#RequestMapping("/student")
public class StudentController {
#Autowired
private StudentRepository studentRepository;
#GetMapping
public ResponseEntity<Map<String, Student>> index() {
Map<String, Student> students = studentRepository.findAllStudents();
return new ResponseEntity<Map<String, Student>>(students, HttpStatus.OK);
}
#RequestMapping(method = RequestMethod.GET, value = "/{id}")
public ResponseEntity<Student> getStudentById(#PathVariable("id") String id) {
Student student = studentRepository.findStudent(id);
return new ResponseEntity<Student>(student, HttpStatus.OK);
}
#RequestMapping(method = RequestMethod.POST)
public ResponseEntity<Student> saveStudent(#RequestBody Student student) {
studentRepository.saveStudent(student);
return new ResponseEntity<Student>(student, HttpStatus.CREATED);
}
#RequestMapping(method = RequestMethod.PUT, value = "/{id}")
public ResponseEntity<Student> updateStudent(#RequestBody Student student) {
studentRepository.updateStudent(student);
return new ResponseEntity<Student>(student, HttpStatus.OK);
}
#RequestMapping(method = RequestMethod.DELETE, value = "/{id}")
public ResponseEntity<Student> deleteMessage(#PathVariable("id") String id) {
studentRepository.deleteStudent(id);
return new ResponseEntity<Student>(HttpStatus.OK);
}
}
You set the constructor as private... change it to public
#Autowired
public StudentRepositoryImpl(RedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
Change the following redis configuration:
Your original:
#Bean
public RedisTemplate<String, Object> redisTemplate() {
...
}
Change it to:
#Bean
public RedisTemplate<String, ?> redisTemplate(){
...
}
It should work now for you.
You could use Spring Data Redis
Add dependencies:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
Enable Caching
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
#SpringBootApplication
#EnableCaching
public class RedisDemoApplication {
public static void main(String[] args) {
SpringApplication.run(RedisDemoApplication.class, args);
}
}
Add Cacheable annotation at method to cache in redis
#Cacheable(value = "employee", key = "#id")
public Employee getEmployee(Integer id) {
log.info("Get Employee By Id: {}", id);
Optional<Employee> employeeOptional = employeeRepository.findById(id);
if (!employeeOptional.isPresent()) {
throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Id Not foud");
}
return employeeOptional.get();
}
Hy,
Having these three classes I have found a problem:
package xpadro.spring.jms;
import javax.jms.ConnectionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.support.converter.MarshallingMessageConverter;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
#SpringBootApplication
public class JmsJavaconfigApplication {
public static void main(String[] args) {
SpringApplication.run(JmsJavaconfigApplication.class, args);
}
#Bean
public Jaxb2Marshaller jaxb2Marshaller(){
Jaxb2Marshaller jaxb = new Jaxb2Marshaller();
Class array[] = new Class[1];
array[0]= xpadro.spring.jms.model.Order.class;
jaxb.setClassesToBeBound(array);
return jaxb;
}
#Bean
#Autowired
public MarshallingMessageConverter marshallingMessageConverter( Jaxb2Marshaller marshaller){
MarshallingMessageConverter mc = new MarshallingMessageConverter();
mc.setMarshaller(marshaller);
mc.setUnmarshaller(marshaller);
return mc;
}
#Bean
#Autowired
public JmsTemplate init(MarshallingMessageConverter messageConverter,ConnectionFactory connectionFactory){
JmsTemplate template = new JmsTemplate();
template.setMessageConverter(messageConverter);
template.setConnectionFactory(connectionFactory);
return template;
}
}
Next, the model:
package xpadro.spring.jms.model;
import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
#XmlRootElement(name = "order")
#XmlAccessorType(XmlAccessType.FIELD)
public class Order implements Serializable {
private static final long serialVersionUID = -797586847427389162L;
#XmlElement(required = true)
private String id="";
public Order() {
}
public Order(String id) {
this.id = id;
}
public String getId() {
return id;
}
}
Next, the listener:
package xpadro.spring.jms.listener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;
import xpadro.spring.jms.model.Order;
import xpadro.spring.jms.service.StoreService;
#Component
public class SimpleListener {
private final StoreService storeService;
#Autowired
public SimpleListener(StoreService storeService) {
this.storeService = storeService;
}
#JmsListener(destination = "simple.queue")
public void receiveOrder(Order order) {
storeService.registerOrder(order);
}
}
The class that sends messages:
package xpadro.spring.jms.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Service;
import xpadro.spring.jms.model.Order;
#Service
public class ClientServiceImpl implements ClientService {
private static final String SIMPLE_QUEUE = "simple.queue";
private static final String IN_QUEUE = "in.queue";
private final JmsTemplate jmsTemplate;
#Autowired
public ClientServiceImpl(JmsTemplate jmsTemplate) {
this.jmsTemplate = jmsTemplate;
}
#Override
public void addOrder(Order order) {
//MessageRegistered with a bean
jmsTemplate.convertAndSend(SIMPLE_QUEUE, order);
}
#Override
public void registerOrder(Order order) {
//MessageRegistered with a bean
jmsTemplate.convertAndSend(IN_QUEUE, order);
}
}
The point is that listener(method receiveOrder()) is not executed when I set a custom message converter in the class JmsJavaconfigApplication. When I dont set it, spring boot sets a SimpleMessageConverter and the listener is executed.
Any wrong or missed configuration?
Thanks
You need to provide an marshalling converter to the #JmsListener to unmarshall the message, by configuring the listener container factory see the documentation.
By mean of Spring libraries I have to develope a DAL (Data Access Layer) in the form of a jar library which will be imported into the main application.
I want to use Hibernate to access a MySQL DB and DBCP for the management of the connections pool.
I have written the config file DALConfig.java which contains the configuration of the DAL beans:
package my.dal.config;
import java.util.Properties;
import javax.annotation.Resource;
import org.apache.commons.dbcp2.BasicDataSource;
import org.apache.commons.dbcp2.BasicDataSourceFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
// Needed by Spring to add this class to the ApplicationContext's configuration
#Configuration
#ComponentScan(basePackages = { "my.dal.config" })
// Property file in which are written the MySQL connection properties
#PropertySource("classpath:dbconnection.properties")
public class DALConfig {
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver";
private static final String PROPERTY_NAME_DATABASE_PASSWORD = "db.password";
private static final String PROPERTY_NAME_DATABASE_URL = "db.url";
private static final String PROPERTY_NAME_DATABASE_USERNAME = "db.username";
private static final String PROPERTY_NAME_POOL_INITIAL_SIZE = "pool.initialsize";
private static final String PROPERTY_NAME_POOL_MAX_IDLE = "pool.maxidle";
// Needed to access property file
#Resource
private Environment environment;
// The bean which defines the BasicDataSource (DBCP)
#Bean
public BasicDataSource dataSource() throws Exception
{
Properties props = new Properties();
props.put("driverClassName", environment.getProperty(PROPERTY_NAME_DATABASE_DRIVER));
props.put("url", environment.getProperty(PROPERTY_NAME_DATABASE_URL));
props.put("username", environment.getProperty(PROPERTY_NAME_DATABASE_USERNAME));
props.put("password", environment.getProperty(PROPERTY_NAME_DATABASE_PASSWORD));
props.put("initialSize", environment.getProperty(PROPERTY_NAME_POOL_INITIAL_SIZE));
props.put("maxIdle", environment.getProperty(PROPERTY_NAME_POOL_MAX_IDLE));
BasicDataSource bds = BasicDataSourceFactory.createDataSource(props);
return bds;
}
// Bean used to translate Hibernate's exceptions into Spring's ones
#Bean
public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor()
{
PersistenceExceptionTranslationPostProcessor b = new PersistenceExceptionTranslationPostProcessor();
return b;
}
}
Then I wrote the HibernateConfig.java config file which contains the Hibernate configuration stuff
package my.dal.hibernateconfig;
import java.util.Properties;
import javax.annotation.Resource;
import javax.sql.DataSource;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
#Configuration
#ComponentScan(basePackages = { "my.dal.hibernatesessionfactory" })
#PropertySource("classpath:dbconnection.properties")
public class HibernateConfig {
private static final String PROPERTY_NAME_DAL_CLASSES_PACKAGE = "hibernate.dal.package";
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
#Resource
private Environment environment;
#Autowired
DataSource dataSource;
// Bean which defines the FactoryBean for the SessionBean
#Bean
public LocalSessionFactoryBean sessionFactory()
{
LocalSessionFactoryBean lsfb = new LocalSessionFactoryBean();
lsfb.setPackagesToScan(PROPERTY_NAME_DAL_CLASSES_PACKAGE);
Properties hibernateProperties = new Properties();
hibernateProperties.put("dialect", PROPERTY_NAME_HIBERNATE_DIALECT);
lsfb.setHibernateProperties(hibernateProperties);
lsfb.setDataSource(dataSource);
return lsfb;
}
#Bean
public HibernateTransactionManager transactionManager()
{
// THE EXCEPTION IS THROWN AT THIS LINE
HibernateTransactionManager htm = new HibernateTransactionManager((SessionFactory) sessionFactory());
return htm;
}
}
Next I wrote the UserDAO.java class which is a DAO for the User class which models the DB's User table.
package my.dal.dao;
import my.models.User;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
#Component
#Repository
#Transactional
public class UserDAO
{
private SessionFactory sessionFactory;
#Autowired
public UserDAO(SessionFactory sessionFactory) {
this.sessionFactory=sessionFactory;
}
public int insert(User user) {
return (Integer) sessionFactory.getCurrentSession().save(user);
}
public User getByUsername(String username) {
return (User) sessionFactory.getCurrentSession().get(User.class, username);
}
public void update(User user) {
sessionFactory.getCurrentSession().merge(user); // .update(user);
}
public void delete(String username) {
User u = getByUsername(username);
sessionFactory.getCurrentSession().delete(u);
}
}
The mapping class User.java (generated using the Eclipse's Hibernate tools) is
package my.models;
public class User implements java.io.Serializable {
private String username;
private String idUserKeystone;
private String firstName;
private String lastName;
private String password;
private String email;
private String emailRef;
private String employer;
private boolean confirmed;
// Getters, setters and full constructor
}
Now I want to test the DAL. The testing class is DALTest.java
package my.dal.tests;
import static org.junit.Assert.assertTrue;
import my.dal.config.DALConfig;
import my.dal.dao.UserDAO;
import my.dal.hibernateconfig.HibernateConfig;
import my.models.User;
import org.hibernate.SessionFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
#ContextConfiguration(classes = { DALConfig.class, HibernateConfig.class})
#RunWith(SpringJUnit4ClassRunner.class)
public class DALTest {
#Autowired
UserDAO userDAO;
#Test
public void testGetUser() {
User user = null;
// Let's see if the user "myuser" is into the database
user = userDAO.getByUsername("myuser");
assertTrue(null != user);
}
}
When I run the test it throws the following exceptions
java.lang.IllegalStateException: Failed to load ApplicationContext
...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in class my.dal.hibernateconfig.HibernateConfig: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.orm.hibernate4.HibernateTransactionManager my.dal.hibernateconfig.HibernateConfig.transactionManager()] threw exception; nested exception is java.lang.ClassCastException: org.springframework.orm.hibernate4.LocalSessionFactoryBean$$EnhancerBySpringCGLIB$$d866ed45 cannot be cast to org.hibernate.SessionFactory
...
Caused by: java.lang.ClassCastException: org.springframework.orm.hibernate4.LocalSessionFactoryBean$$EnhancerBySpringCGLIB$$d866ed45 cannot be cast to org.hibernate.SessionFactory
at my.dal.hibernateconfig.HibernateConfig.transactionManager(HibernateConfig.java:55)
at my.dal.hibernateconfig.HibernateConfig$$EnhancerBySpringCGLIB$$bd53a036.CGLIB$transactionManager$1(<generated>)
at my.dal.hibernateconfig.HibernateConfig$$EnhancerBySpringCGLIB$$bd53a036$$FastClassBySpringCGLIB$$119f2c5b.invoke(<generated>)
...
It seems like the problem is the cast at the line
HibernateTransactionManager htm = new HibernateTransactionManager((SessionFactory) sessionFactory())
On the contrary, the Internet is full of example writing that line that way.
What could be the problem?
Thank you in advance
A FactoryBean<Foo> is a bean that creates objects of type Foo. It's not, itself, of type Foo (as the javadoc would show you). To get the Foo it creates, you simply call getObject() on the factory bean:
HibernateTransactionManager htm =
new HibernateTransactionManager(sessionFactory().getObject());