autowired

问题 I am struggling to get a specific service via class name from group of injected tagged services. Here is an example: I tag all the services that implement DriverInterface as app.driver and bind it to the $drivers variable. In some other service I need to get all those drivers that are tagged app.driver and instantiate and use only few of them. But what drivers will be needed is dynamic. services.yml _defaults: autowire: true autoconfigure: true public: false bind: $drivers: [!tagged app

问题 I found similar issues explained many web portals. But I guess this is unique situation. I am getting an error in spring mvc app. org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testController' defined in file [C:\Program Files (x86)\sts-bundle\pivotal-tc-server-developer-3.1.2.RELEASE\base-instance\wtpwebapps\ExpT1\WEB-INF\classes\com\expt\controller\TestController.class]: Unsatisfied dependency expressed through constructor argument with

问题 I have a MyTask class which implements Runnable and there can be many such objects instantiated at any given moment. There are certain properties that I would like to autowire into MyTask class. But I think that if I mark MyTask with @Component then it will become a spring-managed singleton correct? That's not what I want, I need many independent instances of this class to be run by a TaskExecutor. So my question(s): a) Am I fundamentally wrong in my understanding of @Component annotation?

问题 How does Spring @Autowire beans: byName or byType? If one is not possible, is a second trial done using another mode? 回答1: If annotated with @Autowired it will inject the bean with the matching type (An exception will be thrown if there are more than one of a type). To specify a name use the @Qualifier annotation. 回答2: Springs @Autowire wires by type. For wiring by name you can also use @Resource(name = "id") 回答3: The default mode of the @Autowired is byType . 回答4: Autowired annotation on

问题 I have a strange behaviour when autowiring I have a similar code like this one, and it works @Controller public class Class1 { @Autowired private Class2 object2; ... } @Service @Transactional public class Class2{ ... } The problem is that I need that the Class2 implements an interface so I've only changed the Class2 so it's now like: @Controller public class Class1 { @Autowired private Class2 object2; ... } @Service @Transactional public class Class2 implements IServiceReference<Class3, Long>

问题 The majority of examples on Spring Boot I've found focus on building simple web applications. That is, web applications where you are in complete and utterly control of everything. On the other side, I have not had much luck in finding examples on how to build non-web applications where larger parts of the application depends on 3rd party code. Consider my com.mypackage.Application class below. package com.mypackage; import com.3rdparty.factory.ServiceFactory; public class Application {

问题 I have a Web Service which I am trying to Autowire a variable into. Here is the class: package com.xetius.isales.pr7.service; import java.util.Arrays; import java.util.List; import javax.jws.WebService; import org.springframework.beans.factory.annotation.Autowired; import com.xetius.isales.pr7.domain.PR7Product; import com.xetius.isales.pr7.domain.PR7Upgrade; import com.xetius.isales.pr7.logic.UpgradeControllerInterface; @WebService(serviceName="ProductRulesService", portName=

问题 i am using spring 3, and i have two beans of view scope: 1- Bean1: @Component("bean1") @Scope("view") public class Bean1 { @Autowired private Bean2 bean2; } 2- Bean2: @Component("bean2") @Scope("view") public class Bean2 { @Autowired private Bean1 bean1; } the view is a custom scope: <bean class="org.springframework.beans.factory.config.CustomScopeConfigurer"> <property name="scopes"> <map> <entry key="view"> <bean class="${project.groupId}.utils.ViewScope" /> </entry> </map> </property> <

问题 I have an application that has 2 beans with the same name, but which are in different packages. My Spring application fails because it cannot decide on which bean to take. Is there any solution for this? The beans do not currently implement specific interfaces. See below an edited example of the exception: Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'dataTransferHandler' for bean class [aaaaa.ws.handler

问题 This question already has answers here : Why is my Spring @Autowired field null? (16 answers) Closed 3 years ago . I was able to use RestTemplate and autowire it. However I want to move my rest template related part of code into another class as follows: public class Bridge { private final String BASE_URL = "http://localhost:8080/u"; @Autowired RestTemplate restTemplate; public void addW() { Map<String, String> x = new HashMap<String, String>(); W c = restTemplate.getForObject(BASE_URL + "