我已经在 UML 中实现了 Spring 状态机，并正在尝试实现一个连接池。我的配置类是
@Configuration
public class CambodiaStateMachine {
@Autowired
private ApplicationContext appContext;
@Bean
public StateMachineListener<String, String> listener() {
return new StateMachineListenerAdapter<String, String>() {
@Override
public void stateChanged(State<String, String> from, State<String, String> to) {
System.out.println("State change to " + to.getId());
}
};
}
@Bean(name = "stateMachineTarget")
@Scope(scopeName="prototype")
public StateMachine<String, String> stateMachineTarget() throws Exception {
Builder<String, String> builder = StateMachineBuilder.<String, String>builder();
builder.configureConfiguration()
.withConfiguration()
.machineId("cambodia")
.autoStartup(true);
builder.configureModel().withModel().factory(modelFactory());
builder.configureConfiguration().withConfiguration().beanFactory(appContext.getAutowireCapableBeanFactory());
return builder.build();
}
@Bean
public StateMachineModelFactory<String, String> modelFactory() {
return new UmlStateMachineModelFactory("classpath:stm/model.uml");
}
@Bean
public CommonsPool2TargetSource poolTargetSource() {
CommonsPool2TargetSource pool = new CommonsPool2TargetSource();
pool.setMaxSize(10);
pool.setTargetBeanName("stateMachineTarget");
return pool;
}
@Bean
@Scope(value = "request", proxyMode = ScopedProxyMode.TARGET_CLASS)
public ProxyFactoryBean stateMachine() {
ProxyFactoryBean pfb = new ProxyFactoryBean();
pfb.setTargetSource(poolTargetSource());
return pfb;
}
}
我得到一个错误
原因：java.lang.IllegalStateException：无法为 bean 'scopedTarget.stateMachine' 创建范围代理：在创建代理时无法确定目标类型
. 现在我尝试使用它并删除
proxyMode = ScopedProxyMode.TARGET_CLASS
错误不再存在，但未观察到预期的行为。没有游泳池，只有一台机器在运行。
我在这里看到了这个错误，但没有看到解决方案。