Java NoSuchBeanDefinitionException:没有内部类类型的限定bean

我尝试将第三方bean添加到我的应用程序：

@Configuration
@ComponentScan(...)
public class ApplicationConfiguration {

    @Bean(name = "mqSocket")
    public ZMQ.Socket startServer() {
        try (ZMQ.Context ctx = ZMQ.context(1);
             ZMQ.Socket publisher = ctx.socket(ZMQ.PUB)) {
            publisher.bind("tcp://*:5556");
            return publisher;
        }
    }
}

我试着像这样自动连线：

@RestController
public class MyRestController {    

    @Autowired
    private ZMQ.Socket mqSocket;

但它打印了以下内容：

java.lang.IllegalStateException: Failed to load ApplicationContext
...
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myRestController': Unsatisfied dependency expressed through field 'mqSocket'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.zeromq.ZMQ$Socket' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
...
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.zeromq.ZMQ$Socket' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
...

---

您创建了一个名为mqSocket的bean，因此我猜您必须使用

@Qualifier

注释；尝试以以下方式更改代码：

@RestController
public class MyRestController {    

    @Autowired
    @Qualifier("mqSocket")
    private ZMQ.Socket mqSocket;

我希望它有用

Angelo

您应该在应用程序类中添加

例如：

---

注意：cf.@M.Prokhorov comments，

ZMQ.Socket

由try with resource语句关闭，这不应该是问题。支持内部类。是否调用了

startServer

方法？是否正在加载配置？尝试查找一个虚拟bean（简单字符串），并查看它是否从相同的配置加载。在

startServer（）

返回之前，您的

ZMQ.Socket

已关闭。这是你期望的行为吗？@Nicolas，事实上not@Nicolas谢谢，它起作用了。请加上答案，我会接受的，这对我没有帮助

@Import(ApplicationConfiguration.class)
public class Application {

}