在我的项目中，我需要调用其他一些应用SOAP URL来获取连接，在该连接obj之上，我需要传递各种请求以获取响应。我需要解析此响应以获取实际结果数据。
保持连接时，有一个称为Retrival类对象的API。需要使用相同的连接，即传递请求并获取响应对象。
因此，我可以将其作为获取这些Retrival对象的原型范围。
但是我使用的Akka Actor使用这些对象获取不同的数据。
我无法使用原型范围创建未知数量的Retrival类的bean。以后可能会导致OOM异常。
我想创建一些说20个Retrival类的bean并使用它们。
我在春季如何使用春季最新版本。
我尝试使用commonspool2targetsource，但是就像从其他应用程序jar中导入的Retrival类一样……在类路径中无法识别Retrival.class。
不知道如何去做，任何帮助将不胜感激。
这是我正在做的示例代码：
@Bean(name="retriver")
@Scope("prototype")
public Retriver retriver() {
Retriver dr = null;
try {
dr = new Retriver(config.getUserName(),
config.getPassword(),
config.getUrl());
} catch (Exception e) {
logger.error("Exepction in creating SOAP datasource connection");
}
return dr;
}
@Bean
public CommonsPool2TargetSource RetriverPooledTargetSource() {
final CommonsPool2TargetSource commonsPoolTargetSource = new CommonsPool2TargetSource();
commonsPoolTargetSource.setTargetBeanName("Retriver");
commonsPoolTargetSource.setTargetClass(Retriver.class); //Getting error here....
commonsPoolTargetSource.setMaxSize(10);
return commonsPoolTargetSource;
}
@Bean
public ProxyFactoryBean proxyFactoryBean() {
ProxyFactoryBean p = new ProxyFactoryBean();
p.setTargetSource(RetriverPooledTargetSource());
return p;
}
错误：无法解析类型org.apache.commons.pool2.PooledObjectFactory。从所需的.class文件间接引用它
第2部分问题：
更改为common-pool2以下的错误。
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
但是当我说如下的pool.getActive时显示为0
CommonsPool2TargetSource pool = configurationUtils.retrieverPooledTargetSource();
System.out.println( " pool.getActiveCount " + pool.getActiveCount());
这样也没有例外，但是当我检查上面的池对象时。
有一个文件名为creationException
内容如下：
java.lang.Exception
at org.apache.commons.pool2.impl.BaseGenericObjectPool.<init>(BaseGenericObjectPool.java:147)
at org.apache.commons.pool2.impl.GenericObjectPool.<init>(GenericObjectPool.java:105)
at org.springframework.aop.target.CommonsPool2TargetSource.createObjectPool(CommonsPool2TargetSource.java:225)
at org.springframework.aop.target.CommonsPool2TargetSource.createPool(CommonsPool2TargetSource.java:205)
at org.springframework.aop.target.AbstractPoolingTargetSource.setBeanFactory(AbstractPoolingTargetSource.java:83)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1767)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1732)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:394)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:366)
at com.spgmi.ca.prescore.config.ConfigurationUtils$$EnhancerBySpringCGLIB$$f3eea85f.dataRetrieverPooledTargetSource(<generated>)
at com.spgmi.ca.prescore.config.ConfigurationUtils.proxyFactoryBean(ConfigurationUtils.java:60)
at com.spgmi.ca.prescore.config.ConfigurationUtils$$EnhancerBySpringCGLIB$$f3eea85f.CGLIB$proxyFactoryBean$2(<generated>)
at com.spgmi.ca.prescore.config.ConfigurationUtils$$EnhancerBySpringCGLIB$$f3eea85f$$FastClassBySpringCGLIB$$861ac14b.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
at com.spgmi.ca.prescore.config.ConfigurationUtils$$EnhancerBySpringCGLIB$$f3eea85f.proxyFactoryBean(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:620)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:455)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1288)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1127)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getSingletonFactoryBeanForTypeCheck(AbstractAutowireCapableBeanFactory.java:974)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:848)
at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:565)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:514)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:485)
at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:227)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1403)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1166)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1378)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.spgmi.ca.prescore.PreScoreProducerApplication.main(PreScoreProducerApplication.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
问题3
当打电话给这个
CommonsPool2TargetSource pool = configurationUtils.dataRetrieverPooledTargetSource();
dataRetriever = (DataRetriever) pool.getTarget();
System.out.println(" " + dataRetriever);
它引发以下异常：我在这里做错了什么？
原因：java.lang.IllegalStateException：没有可用的Commons ObjectPool
在org.springframework.util.Assert.state（Assert.java:73）
在org.springframework.aop.target.CommonsPool2TargetSource.getTarget（CommonsPool2TargetSource.java:234）
在com.spgmi.ca.prescore.actor.CompanyTransIndustryActor.preStart（CompanyTransIndustryActor.java:63）
在akka.actor.Actor $ class.aroundPreStart（Actor.scala：510）
在akka.actor.UntypedActor.aroundPreStart（UntypedActor.scala：95）
在akka.actor.ActorCell.create（ActorCell.scala：590）处
...另外9个
最佳答案
您需要添加以下依赖关系（这是针对Maven构建的）：
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
关于java - 如何在 Spring 创建一个 bean 池？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56881060/