applicationcontext

I need to create a ApplicationContext with the "main" applicationContext-a.xml from the current Maven build. The other one wires classes from another maven build and is preset in the jar included by a Maven Dependency. Here the idea: ApplicationContext context = new ClassPathXmlApplicationContext( new String[] { "classpath*:applicationContext-*.xml"}); This should load applicationContext-a.xml from the Classpath because it's in the same Project. This works. Then applicationContext-b.xml should be loaded from the dependency-jar. This doesn't work. Note that "classpath*:applicationContext-*.xml"

I am trying to run some spring test using Java and annotations configuration. I have two configuration classes in the test packages: @Configuration @ComponentScan(basePackages = "com.mypackages") public class TestConfig { @Bean public MyService getMyService() { return new MyServiceImpl(); } } @Configuration @EnableTransactionManagement public class JpaTestConfig { @Bean public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean(){ LocalContainerEntityManagerFactoryBean lcemfb = new LocalContainerEntityManagerFactoryBean(); lcemfb.setDataSource(this.dataSource()); lcemfb

[ 面试原题] ApplicationContext和BeanFactory的区别 [ 正确答案] 1.如果使用ApplicationContext，则配置的bean如果是singleton不管你用还是不用，都被实例化。好处是可以预先加载，坏处是浪费内存。它也可以为Bean配置lazy-init=true来让Bean延迟实例化。 2. BeanFactory ，当使用BeanFactory实例化对象时，配置的bean不会马上被实例化。当你使用该bean时才会被实例化（getBean）。好处是节约内存，缺点是速度比较慢。多用于移动设备的开发上。 3.一般没有特殊要求，应当使用ApplicationContext完成。 [ 面试技术点] Spring Bean 初始化的方法。 [ 解读] 1. 从ApplicationContext中取bean ApplicationContext ac = new ClassPathXmlApplicationContext("bean.xml"); 当我们实例化bean.xml时，该文件中配置的bean都会被实例化。（该bean scope是singleton） 2. 从BeanFactory中取bean BeanFactory factory= new XmlBeanFactory(new ClassPathResource("bean.xml"

I have a graph of Spring beans which autowire each other. Heavily simplified illustration: <context:annotation-config/> <bean class="Foo"/> <bean class="Bar"/> <bean class="Baz"/> ... public class Foo { @Autowired Bar bar; @Autowired Baz baz; } public class Bar { @Autowired Foo foo; } public class Baz { @Autowired Foo foo; } All of these beans don't have scope specified which imply they are singletons (making them explicit singletons doesn't change anything, I've tried). The problem is that after the instantiation of a single application context , instances of Bar and Baz contain different

I need read an environment variable defined in my web.xml <env-entry> <description>Path Repositorio NFS</description> <env-entry-name>PATH_ENV</env-entry-name> <env-entry-type>java.lang.String</env-entry-type> <env-entry-value>C:/V3</env-entry-value> </env-entry> from my applicationContext.xml <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="${PATH_ENV}/myprop.properties" /> </bean> How can I do this ? Finally I have done the next: 1 Define environment variable in context.xml: <Environment name="PATH

Spring对Groovy有着良好的支持，能把Groovy实现类作为Bean来使用，在前一篇Blog《Spring对Groovy Bean的支持》有详细的描述 http://my.oschina.net/joshuazhan/blog/137940 。基于Groovy Bean可以实现Bean的动态修改，但还有一个缺陷，即无法动态的加载/卸载Bean，本文基于Spring ApplicationContext的层级关系（Hierarchy ）提供一个实现动态类加载的思路。 1. Spring ApplicationContext的层级关系 在ApplicationContext抽象类AbstractApplicationContext中，Spring引入了Context（后文将ApplicationContext简称为Context）的层级关系，通过ApplicationContext的构造函数，即可设置其父Context。 /** * Create a new AbstractApplicationContext with the given parent context. * @param parent the parent context */ public AbstractApplicationContext(ApplicationContext parent) {