applicationcontext

Bean order when autowired into list

瘦欲@ 提交于 2019-12-02 07:09:01
问题 I have defined an interface IWorker and some implementations of it as WorkerA and WorkerB , both annotated with @Component . I then autowire them into my app via: @Autowired private List<IWorker> workers = new ArrayList<IWorker>(); From what does the order the workers are put into the list depend on? How can I let additional WorkerC and WorkerD (also implementations of IWorker ) not annotated with @Component be autowired into the same list via my applicationContext.xml ? Is the order of

Can't load spring 3 schemas

我的梦境 提交于 2019-12-02 03:18:57
i am using Spring 3.0.5.RELEASE and today when building the project with maven, i am getting following errors in appicationContext.xml file: - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'context:component-scan'. - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'context:annotation- config'. - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'tx:annotation- driven'. i tried to open the schema links: Spring XML Beans Schema Spring

java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present

◇◆丶佛笑我妖孽 提交于 2019-12-01 19:01:31
When running my webapp, I get the stacktrace listed below every other try. Note that there doesn't seem to be multiple ContextLoader definitions im web.xml as far as I can tell. Moreover, the app runs just fine the second/fourth/etc. time. This behaviour is much harder to debug than if it simply didn't work. Can anyone shed some light on this? java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml! at org.springframework.web.context.ContextLoader

Parsing applicationContext.xml renders a `java.lang.NoSuchMethodError`. Could this be caused by dependency issues?

笑着哭i 提交于 2019-12-01 17:23:50
I am invoking a test method (Junit) with an annotated application context ( @ContextConfiguration(locations={"classpath:applicationContext.xml"}) ). The test fails with the following stacktrace: 11:20:39.793 [main] ERROR o.s.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@28419cd] to prepare test instance [com.atrioom.TestDynamo@7fbdc7db] java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context

Why I must have a default constructor in a Spring configuration class annoted by the @Constructor annotation?

风格不统一 提交于 2019-12-01 16:16:06
I am studying for Spring Core certification and, on the provided study stuff, I have this question but I can't give an answer to it. Why must you have to have a default constructor in your @Configuration annotated class? I don't declare any constructor into my configuration classes annoted by the @Configuration annotation. The default constructor is the one inherited by the super class? or what? Why I must have a default constructor and I can't override it? Tnx According to official spring javadoc , spring @Configuration annotated classes are required to have default no-arg constructor

Ignore some classes while scanning PackagesToScan

喜夏-厌秋 提交于 2019-12-01 15:22:01
I've a package (say packagesToScan ) containing Classes that I wish to persist annotated with @Entity . While defining ApplicationContext configuration, I've done as follows. @Configuration @EnableJpaRepositories("packagesToScan") @EnableTransactionManagement @PropertySource("server/jdbc.properties") @ComponentScan("packagesToScan") public class JpaContext { ... // Other configurations .... @Bean public LocalContainerEntityManagerFactoryBean entityManagerFactory() { LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean(); emf.setDataSource(this.dataSource());

Spring中xxx-servlet.xml跟applicationContext.xml的认识

旧巷老猫 提交于 2019-12-01 15:09:29
Spring中xxx-servlet.xml和applicationContext.xml的认识 因为直接使用了SpringMVC,所以之前一直不明白xxx-servlet.xml和applicationContext.xml是如何区别的,其实如果直接使用SpringMVC是可以不添加applicationContext.xml文件的。 使用applicationContext.xml文件时是需要在web.xml中添加listener的: <listener> <listener-class>org.springframeworntext.ContextLoaderListener</listener-class> </listener> 而这个一般是采用非spring mvc架构,如使用struts之类而又想引入spring才添加的,这个是用来加载Application Context。 如果直接采用SpringMVC,只需要把所有相关配置放到xxx-servlet.xml中就OK了。 在后面的使用中又发现了新问题,如果用上面的方式,在jsp中是没有办法得到WebApplicationContext的,必须加上ContextLoaderListener后,即需要applicationContext.xml这个配置文件,才能在jsp中用org.springframeworntext

Why I must have a default constructor in a Spring configuration class annoted by the @Constructor annotation?

醉酒当歌 提交于 2019-12-01 14:19:46
问题 I am studying for Spring Core certification and, on the provided study stuff, I have this question but I can't give an answer to it. Why must you have to have a default constructor in your @Configuration annotated class? I don't declare any constructor into my configuration classes annoted by the @Configuration annotation. The default constructor is the one inherited by the super class? or what? Why I must have a default constructor and I can't override it? Tnx 回答1: According to official

Ignore some classes while scanning PackagesToScan

一曲冷凌霜 提交于 2019-12-01 14:02:58
问题 I've a package (say packagesToScan ) containing Classes that I wish to persist annotated with @Entity . While defining ApplicationContext configuration, I've done as follows. @Configuration @EnableJpaRepositories("packagesToScan") @EnableTransactionManagement @PropertySource("server/jdbc.properties") @ComponentScan("packagesToScan") public class JpaContext { ... // Other configurations .... @Bean public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

Java annotation scanning with spring

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-01 12:09:34
I have few classes that I need to annotate with a name so I defined my annotation as @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.TYPE) public @interface JsonUnmarshallable { public String value(); } Now the class that needs this annotation is defined as @JsonUnmarshallable("myClass") public class MyClassInfo { <few properties> } I used below code to scan the annotations private <T> Map<String, T> scanForAnnotation(Class<JsonUnmarshallable> annotationType) { GenericApplicationContext applicationContext = new GenericApplicationContext(); ClassPathBeanDefinitionScanner scanner = new