Getting Hibernate Session Count from application - java

I created simple Java application to learn Spring and hibernate integration. I have done all the setup and application also working fine.
Everything works fine. But, I want to see how much sessions are currently my application using like open connections and closed hibernate connections.
In Sessionfactory classs we have "getStatistics" method used to retrieve hibernate statistics data but this is not helping me. It gives me also Zero. please find below pic.
I want to ensure my application, using single session for entire application operations or not.
So is there any way to find out or to get Spring+hibernate sessions count.
My hibernate configuration file;
<?xml version="1.0" encoding="UTF-8"?>
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:#localhost:1521:XE" />
<property name="username" value="rocky" />
<property name="password" value="rocky" />
</bean>
<bean id="mySessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="mappingResources">
<list>
<value>orders.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<map>
<entry>
<key>
<value>hibernate.show_sql</value>
</key>
<value>true</value>
</entry>
<entry>
<key>
<value>hibernate.dialect</value>
</key>
<value>org.hibernate.dialect.OracleDialect</value>
</entry>
<entry>
<key>
<value>hibernate.query.factory_class</value>
</key>
<value>org.hibernate.hql.classic.ClassicQueryTranslatorFactory</value>
</entry>
<entry>
<key>
<value>connection.autocommit</value>
</key>
<value>true</value>
</entry>
</map>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="mySessionFactory" />
</bean>
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="mySessionFactory" />
</bean>
<bean id="transactionProxy"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager" ref="txManager" />
<property name="transactionAttributes">
<props>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
<property name="target" ref="myServiceClass">
</property>
</bean>
<tx:annotation-driven transaction-manager="txManager" />
<bean id="myServiceClass" class="myServiceClass">
<property name="sessionFactory" ref="mySessionFactory" />
</bean>

Looking at your code It seams that you have not enable staticstics of your session factory
Step to unable session factory statics
SessionFactory sessionFactory = getSessionFactoryForApplication();
Statistics stats = sessionFactory.getStatistics();
stats.setStatisticsEnabled(true);
Taken from this article
hope this will solve your problem..!

Related

Spring Hibernate Database Connections

I am in the process of learning Hibernate, Spring and JPA.
I would like to know whether my database connections are closed automatically by Spring or not. When I looked at database table v$session I can find there are four JDBC Thin Client
sessions. So would like to know whether these connections are from my application.
Below is my applicationContext.xml. Any help is highly appreciable.
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd"
>
<context:component-scan base-package="net.test" />
<!-- Data Source Declaration -->
<bean id="DataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jdbc/myDS"/>
</bean>
<bean
class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
<bean class="org.springframework.orm.hibernate4.HibernateExceptionTranslator" />
<!-- JPA Entity Manager Factory -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="packagesToScan" value="net.test.entity" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="false" />
<property name="databasePlatform" value="${jdbc.dialectClass}" />
</bean>
</property>
</bean>
<bean id="defaultLobHandler" class="org.springframework.jdbc.support.lob.DefaultLobHandler" />
<!-- Session Factory Declaration -->
<bean id="SessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="annotatedClasses">
<list>
<value>net.test.entity.Employee</value>
<value>net.test.entity.Department</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.query.factory_class">org.hibernate.hql.internal.classic.ClassicQueryTranslatorFactory
</prop>
</props>
</property>
</bean>
<tx:annotation-driven transaction-manager="txManager" />
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="SessionFactory" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<!-- <tx:annotation-driven transaction-manager="txManager"/> -->
<context:annotation-config />
<bean id="hibernateStatisticsMBean" class="org.hibernate.jmx.StatisticsService">
<property name="statisticsEnabled" value="true" />
<property name="sessionFactory" value="#{entityManagerFactory.sessionFactory}" />
</bean>
<bean name="ehCacheManagerMBean"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" />
<bean id="mbeanServer" class="org.springframework.jmx.support.MBeanServerFactoryBean">
<property name="locateExistingServerIfPossible" value="true" />
</bean>
<bean id="jmxExporter" class="org.springframework.jmx.export.MBeanExporter"
lazy-init="false">
<property name="server" ref="mbeanServer" />
<property name="registrationBehaviorName" value="REGISTRATION_REPLACE_EXISTING" />
<property name="beans">
<map>
<entry key="SpringBeans:name=hibernateStatisticsMBean"
value-ref="hibernateStatisticsMBean" />
<entry key="SpringBeans:name=ehCacheManagerMBean" value-ref="ehCacheManagerMBean" />
</map>
</property>
</bean>
</beans>
Spring closes connections when the transaction is committed of rollbacked. But the connections are pooled connections, so closing them simply puts them back into the pool of connections, and doen't physically closes them.
The first goal is to be able to get a new connection from the pool extremely quickly, without having to recreate a new physical connection each time, because it's a costly operation.
The other goal is to be able to put a limit on the number of opened connections, to avoid bringing the database to its knees.
Note that the pool of connections, in your case, isn't handled by Spring, but by your application server, which makes it available from JNDI.

NullPointerException when accessing EntityManager

I am using Hibernate4,Spring3 and JSF2 for a small application and Weblogic 10.3.6 as Apps server.
In order to enable JPA2 I have added the following in commEnv.cmd
#rem Enable JPA 2.0 functionality on WebLogic Server
set PRE_CLASSPATH=%BEA_HOME%\modules\javax.persistence_1.1.0.0_2-0.jar;
%BEA_HOME%\modules\com.oracle.jpa2support_1.0.0.0_2-1.jar
When I run my application I am getting null pointer exception at the following line. How can I resolve this?
CriteriaBuilder cb = entityManager.getCriteriaBuilder();
My DAO
#Named
public class RequestDAOImpl implements RequestDAO {
protected EntityManager entityManager;
public void getRequest(RequestQueryData data){
Map<String, String> filters = data.getFilters();
int start = data.getStart();
int end = data.getEnd();
String sortField = data.getSortField();
QuerySortOrder order = data.getOrder();
CriteriaBuilder cb = entityManager.getCriteriaBuilder();
CriteriaQuery<Request> c = cb.createQuery(Request.class);
Root<Request> emp = c.from(Request.class);
c.select(emp);
...... other code
applicationContext.xml
<bean class="org.springframework.beans.factory.config.CustomScopeConfigurer">
<property name="scopes">
<map>
<entry key="view">
<bean class="org.primefaces.spring.scope.ViewScope" />
</entry>
</map>
</property>
</bean>
<context:component-scan base-package="net.test" />
<!-- Data Source Declaration -->
<bean id="DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="oracle.jdbc" />
<property name="jdbcUrl"
value="jdbc:oracle:thin:#server:1521:ORCL" />
<property name="user" value="scott" />
<property name="password" value="tiger" />
<property name="maxPoolSize" value="10" />
<property name="maxStatements" value="0" />
<property name="minPoolSize" value="5" />
</bean>
<!-- Session Factory Declaration -->
<bean id="SessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="annotatedClasses">
<list>
<value>net.test.model.Request</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.query.factory_class">org.hibernate.hql.internal.classic.ClassicQueryTranslatorFactory
</prop>
</props>
</property>
</bean>
<!-- Enable the configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="txManager" />
<!-- Transaction Manager is defined -->
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="SessionFactory" />
</bean>
Update 1
applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- Spring view scope customized -->
<bean class="org.springframework.beans.factory.config.CustomScopeConfigurer">
<property name="scopes">
<map>
<entry key="view">
<bean class="org.primefaces.spring.scope.ViewScope" />
</entry>
</map>
</property>
</bean>
<context:component-scan base-package="net.test" />
<!-- Data Source Declaration -->
<bean id="DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="oracle.jdbc" />
<property name="jdbcUrl"
value="jdbc:oracle:thin:#server:1521:ORCL" />
<property name="user" value="scott" />
<property name="password" value="tiger" />
<property name="maxPoolSize" value="10" />
<property name="maxStatements" value="0" />
<property name="minPoolSize" value="5" />
</bean>
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<!-- JPA Entity Manager Factory -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="packagesToScan" value="net.test.model" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
</bean>
</property>
</bean>
<bean id="defaultLobHandler" class="org.springframework.jdbc.support.lob.DefaultLobHandler" />
<!-- Session Factory Declaration -->
<bean id="SessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="DataSource" />
<property name="annotatedClasses">
<list>
<value>net.test.model.Request</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.query.factory_class">org.hibernate.hql.internal.classic.ClassicQueryTranslatorFactory
</prop>
</props>
</property>
</bean>
<!-- Enable the configuration of transactional behavior based on annotations
<tx:annotation-driven transaction-manager="txManager" />-->
<!-- Transaction Manager is defined
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="SessionFactory" />
</bean>-->
<!-- Transaction Config -->
<bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="SessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<tx:annotation-driven transaction-manager="txManager"/>
<context:annotation-config/>
<bean id="hibernateStatisticsMBean" class="org.hibernate.jmx.StatisticsService">
<property name="statisticsEnabled" value="true" />
<property name="sessionFactory" value="#{entityManagerFactory.sessionFactory}" />
</bean>
<bean name="ehCacheManagerMBean"
class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" />
<bean id="mbeanServer" class="org.springframework.jmx.support.MBeanServerFactoryBean">
<property name="locateExistingServerIfPossible" value="true" />
</bean>
<bean id="jmxExporter" class="org.springframework.jmx.export.MBeanExporter" lazy-init="false">
<property name="server" ref="mbeanServer" />
<property name="registrationBehaviorName" value="REGISTRATION_REPLACE_EXISTING"/>
<property name="beans">
<map>
<entry key="SpringBeans:name=hibernateStatisticsMBean" value-ref="hibernateStatisticsMBean" />
<entry key="SpringBeans:name=ehCacheManagerMBean" value-ref="ehCacheManagerMBean" />
</map>
</property>
</bean>
</beans>
Your EntityManager doesn't appear to be wired into your DAO. Add #Autowired, #PersistenceContext or a ref in your XML. Note that to just use #Autowired, you'll have to specify EntityManager as a bean.
Another possibility: if your DAO isn't also specified as a bean (either in the XML or using one of the various #Component annotatons (probably #Repository), Spring won't know to wire things in, either.
Update:
There's a couple different solutions here. Before those, though, make sure that you have
<mvc:annotation-driven />
In one of your XMLs. This will enable the spring annotations and save you a lot of headache from editing XMLs. Note that you'll also need to update the xmlns and schemaLocation in the <beans> tag.
xmlns:mvc="http://www.springframework.org/schema/mvc"
and
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
in the schemaLocation.
It looks like you're now specifying an EntityManagerFactory. That's a good start. You can now specify an EntityManager, too.
<bean id="entityManager" class="org.springframework.orm.jpa.support.SharedEntityManagerBean">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
I can't vouch for your XML and EntityManagerFactory settings, though. You seem to have an </property> floating out there in the middle of nowhere.
I'm not sure how you're accessing your DAO. If it's already a bean and within the component-scan, you're good. If not, make sure to annotate your DAO class with #Repository and make sure its package is within the component-scan. Of course, if you don't already have it specified as a bean, that implies that you're possibly instantiating it elsewhere -- this is absolutely not how you want to be using your DAO. Should this be the case, I strongly recommend reading up on Spring's dependency injection.
Now you need to wire in your EntityManager. This can be done in two ways.
The first way requires that you specified it as a bean in your XML. If you've done that, just annotate your EntityManager field.
#Autowired
protected EntityManager entityManager;
Alternatively, since you're specifying a DataSource in your XML, you SHOULD be able to reference it by using #PersistenceContext and passing it a value of the ID.
#PersistenceContext(name="DataSource")
protected EntityManager entityManager;
I've never really used the latter method, but I've seen it done that way. I normally specify an EntityManager bean in the XML and use #Autowired, as described in the former method.

Can configure and start embedded Tomcat via Spring? OK with Jetty?

Is there a way to configure and setup Embedded Tomcat in Spring? I can do so easily with Jetty 7 that I created a standalone Java application that will start Jetty as webcontainer and finally JUnit test can call the BO via HTTPInvoker.
To me, it seems I have to write code to do so by using Tomcat?
Spring xml file
<!-- Manually start server after setting parent context. (init-method="start") -->
<bean id="jettyServer"
class="org.eclipse.jetty.server.Server"
init-method="start"
destroy-method="stop">
<property name="threadPool">
<bean id="ThreadPool"
class="org.eclipse.jetty.util.thread.ExecutorThreadPool">
<constructor-arg value="0" />
<!--property name="corePoolSize" value="${jetty.server.thread.pool.core.pool.size}"/>
<property name="maximumPoolSize" value="${jetty.server.thread.pool.max.pool.size}"/-->
</bean>
</property>
<property name="connectors">
<list>
<bean id="Connector"
class="org.eclipse.jetty.server.nio.SelectChannelConnector"
p:port="${jetty.server.port}"
p:maxIdleTime="${jetty.server.max.idle.time}"
p:acceptors="${jetty.server.acceptor.num}"
p:confidentialPort="${jetty.server.ssl.port}" />
</list>
</property>
<property name="handler">
<bean class="org.eclipse.jetty.server.handler.HandlerCollection">
<property name="handlers">
<list>
<bean class="org.eclipse.jetty.servlet.ServletContextHandler">
<property name="contextPath" value="/"/>
<property name="sessionHandler">
<bean class="org.eclipse.jetty.server.session.SessionHandler"/>
</property>
<property name="resourceBase" value="."/>
<property name="servletHandler">
<bean class="org.eclipse.jetty.servlet.ServletHandler">
<property name="servlets"> <!-- servlet definition -->
<list>
<!-- default servlet -->
<bean class="org.eclipse.jetty.servlet.ServletHolder">
<property name="name" value="DefaultServlet"/>
<property name="servlet">
<bean class="org.springframework.web.servlet.DispatcherServlet"/>
</property>
<property name="initParameters">
<map>
<entry key="contextConfigLocation" value="classpath:config/DefaultServlet-servlet.xml" />
</map>
</property>
</bean>
</list>
</property>
<property name="servletMappings">
<list><!-- servlet mapping -->
<bean class="org.eclipse.jetty.servlet.ServletMapping">
<property name="pathSpecs">
<list><value>/</value></list>
</property>
<property name="servletName" value="DefaultServlet"/>
</bean>
</list>
</property>
</bean>
</property>
</bean>
<bean class="org.eclipse.jetty.server.handler.RequestLogHandler">
<property name="requestLog">
<bean class="org.eclipse.jetty.server.NCSARequestLog">
<constructor-arg value="${jetty.server.log.dir}/jetty-yyyy_mm_dd.log"/>
<property name="extended" value="false"/>
</bean>
</property>
</bean>
</list>
</property>
</bean>
</property>
</bean>
DefaultServlet-servlet.xml
<!-- This default handler takes care of each of the services enumerated below -->
<bean id="defaultHandlerMapping"
class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />
<bean id="helloService" class="com.company.ws.bo.HelloServiceImpl"/>
<!-- SpringHTTP Service Exposure -->
<bean name="/HelloService"
class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter"
lazy-init="true">
<property name="service" ref="helloService" />
<property name="serviceInterface"
value="com.company.ws.bo.IHelloService" />
</bean>
Tomcat 7 can be used as an embedded Server. As far as I know there is no special spring support, but you don't need special spring support to start an tomcat out of an spring application.
#See:
this blog and this (german)

Spring 2.5 login not responding even with the correct username/password

I developed a login mechanism for one of my projects with Spring 2.5 , asegi security 1.0.7 and I used Tomcat 6 as my development server.When I was developing the project everything worked fine and I could successfully log-in.The problem begun when I deployed my application on the production server.From the moment I deployed the application on the production tomcat 6 I could not log-in even with the correct username and password and the most weird of all is that no exception is thrown.I just can't log -in!
here is the application-context.xml of the application:
<bean id="authedicationProvider" class="org.acegisecurity.providers.dao.DaoAuthenticationProvider">
<property name="userDetailsService" ref="userDetailService"/>
</bean>
<bean id="authenticationEntryPoint" class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilterEntryPoint">
<property name="loginFormUrl" value="/login.htm" />
</bean>
<bean id="filterChainProxy"
class="org.acegisecurity.util.FilterChainProxy">
<property name="filterInvocationDefinitionSource">
<value>
CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON
PATTERN_TYPE_APACHE_ANT
/**=authenticationProcessingFilter,exceptionTranslationFilter
</value>
</property>
</bean>
<bean id="authenticationProcessingFilter"
class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter">
<property name="authenticationManager" ref="authenticationManager"/>
<property name="authenticationFailureUrl" value="/error.htm" />
<property name="defaultTargetUrl" value="/admin_menu.htm" />
<property name="filterProcessesUrl" value="/j_acegi_security_check" />
</bean>
<bean id="roleVoter" class="org.acegisecurity.vote.RoleVoter"/>
<bean id="accessDecisionManager" class="org.acegisecurity.vote.UnanimousBased">
<property name="decisionVoters">
<list>
<ref bean="roleVoter"/>
</list>
</property>
<property name="allowIfAllAbstainDecisions" value="true"/>
</bean>
<bean id="filterSecurityInterceptor" class="org.acegisecurity.intercept.web.FilterSecurityInterceptor">
<property name="authenticationManager" ref="authenticationManager"/>
<property name="accessDecisionManager" ref="accessDecisionManager"/>
<property name="objectDefinitionSource">
<value>
CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON
PATTERN_TYPE_APACHE_ANT
/add_article.htm=ROLE_ADMIN
/add_publication.htm=ROLE_ADMIN
/admin_menu.htm=ROLE_ADMIN
</value>
</bean>
</property>
</bean>
<bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager">
<property name="providers">
<list>
<ref bean="authedicationProvider"/>
</list>
</property>
</bean>
<bean id="userDetailService" class="org.acegisecurity.userdetails.jdbc.JdbcDaoImpl">
<property name="dataSource" ref="datasource"/>
<property name="usersByUsernameQuery">
<value>
SELECT username,password,'true' AS enabled FROM Users where username=?
</value>
</property>
<property name="authoritiesByUsernameQuery">
<value>
SELECT username,role_name FROM Roles r,Users u WHERE r.user=u.id AND u.username=?
</value>
</property>
</bean>
Am I missing somthing?Any help would be really appreciated!Thank you in advance
Is this what you have <bean id="authe**d**icationProvider" in your first line of application file ?

is possible to combine: jersey + jetty + spring

I'm trying to create a webserver embedding jetty (rather than Java EE) , and map my servlets RESTfully, using jersey.
I'm using spring for dependency injection, and mapping the servlets as beans
However, when I try to make an HTTP req to the mapped servlets, i get error 500- server error, or 404, page not found.
I'm not sure if i'm doing this the right way, and I should probably be using the jetty.xml rather than this. (wondering if there's a shorcut using jetty.xml)
<bean id="contexts"
class="org.eclipse.jetty.server.handler.ContextHandlerCollection">
</bean>
<bean id="server" class="org.mortbay.jetty.spring.Server"
init-method="start" destroy-method="stop">
<property name="threadPool">
<bean id="ThreadPool" class="org.eclipse.jetty.util.thread.QueuedThreadPool">
<property name="minThreads" value="10" />
<property name="maxThreads" value="50" />
</bean>
</property>
<property name="connectors">
<list>
<bean id="Connector" class="org.eclipse.jetty.server.nio.SelectChannelConnector">
<property name="port" value="8080" />
</bean>
</list>
</property>
<property name="handler">
<bean id="handlers" class="org.eclipse.jetty.server.handler.HandlerCollection">
<property name="handlers">
<list>
<ref bean="contexts" />
<bean class="org.eclipse.jetty.server.handler.ResourceHandler">
<property name="directoriesListed" value="true" />
<property name="welcomeFiles">
<list>
<value>index.jsp</value>
</list>
</property>
<property name="resourceBase" value="./WebContent" />
</bean>
<bean id="myServletHandler" class="org.eclipse.jetty.servlet.ServletHandler">
<property name="servlets">
<list>
<bean id="jerseyServletContainer" class="org.eclipse.jetty.servlet.ServletHolder">
<property name="name" value="jersey" />
<property name="servlet">
<bean class="com.sun.jersey.spi.container.servlet.ServletContainer" />
</property>
<property name="initParameters">
<map>
<entry key="com.sun.jersey.config.property.resourceConfigClass"
value="com.sun.jersey.api.core.PackagesResourceConfig" />
<entry key="com.sun.jersey.config.property.packages"
value="servlets" />
</map>
</property>
</bean>
</list>
</property>
<property name="servletMappings">
<list>
<bean id="jerseyMapping" class="org.eclipse.jetty.servlet.ServletMapping">
<property name="servletName" value="jersey" />
<property name="pathSpec" value="/*" />
</bean>
</list>
</property>
</bean>
</list>
</property>
</bean>
</property>
<property name="beans">
<list>
<bean id="ContextDeployer" class="org.eclipse.jetty.deploy.ContextDeployer">
<property name="contexts" ref="contexts" />
<property name="directory" value="contexts" />
<property name="scanInterval" value="5" />
</bean>
</list>
</property>
</bean>
I have one class in the servlets package: DoNothing.java
package servlets;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
#Path("/nothing")
public class doNothing
{
#GET
#Produces("text/plain")
public String returnNothing()
{
return ("test");
}
}
what in the world am I doing wrong? or should I ask what in the world am I doing right?
Thanks
I was looking for a way to use Jersey+Spring+Embedded Jetty and found this question. I tried your method and it actually works.
If you want to actually use Spring beans in your resources you can use jersey-spring:
<bean id="server" class="org.mortbay.jetty.Server" destroy-method="stop">
<property name="connectors">
<list>
<bean id="Connector" class="org.mortbay.jetty.nio.SelectChannelConnector">
<property name="port" value="8080"/>
</bean>
</list>
</property>
<property name="handlers">
<list>
<bean class="org.mortbay.jetty.servlet.Context">
<property name="contextPath" value="/"/>
<property name="sessionHandler">
<bean class="org.mortbay.jetty.servlet.SessionHandler" />
</property>
<property name="servletHandler">
<bean class="org.mortbay.jetty.servlet.ServletHandler">
<property name="servlets">
<list>
<bean class="org.mortbay.jetty.servlet.ServletHolder">
<property name="name" value="jersey" />
<property name="servlet">
<bean class="com.sun.jersey.spi.spring.container.servlet.SpringServlet" />
</property>
<property name="initParameters">
<map>
<entry key="com.sun.jersey.spi.container.ContainerRequestFilters"
value="com.sun.jersey.api.container.filter.LoggingFilter" />
<entry key="com.sun.jersey.spi.container.ContainerResponseFilters"
value="com.sun.jersey.api.container.filter.LoggingFilter" />
</map>
</property>
</bean>
</list>
</property>
<property name="servletMappings">
<list>
<bean class="org.mortbay.jetty.servlet.ServletMapping">
<property name="servletName" value="jersey"/>
<property name="pathSpecs">
<list>
<value>/*</value>
</list>
</property>
</bean>
</list>
</property>
</bean>
</property>
<property name="eventListeners">
<list>
<bean id="requestContextListener" class="org.springframework.web.context.request.RequestContextListener"/>
<bean id="contextLoaderListener" class="org.springframework.web.context.ContextLoaderListener"/>
</list>
</property>
<property name="initParams">
<map>
<entry key="contextConfigLocation" value="classpath:META-INF/AdditionalBeansContext.xml"/>
</map>
</property>
</bean><!--
--></list>
</property>
</bean>
In file AdditionalBeansContext.xml:
Then define your Resources with: #Component annotation, injected beans with #Autowired

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