无法将@ConfigurationProperties bean映射到@Component bean

Question

配置类的实例是正确创建的，但未正确映射到@Component类中，显示为null。为什么@Component类被注释，因为@Autowired似乎根本不起作用？谢谢。

@Configuration    
@ConfigurationProperties(prefix="wmi2017")    
@PropertySource(value = "classpath:wmi2017.properties",  ignoreResourceNotFound = false)

public class Wmi2017Properties {
}

- >没有@Configuration，这不起作用

@Component
@EnableConfigurationProperties(Wmi2017Properties.class)
public class WmiCollection {

    @Autowired
    private Wmi2017Properties wmiProps;

@Autowired不起作用，wmiPros是null。

Answer 1

试试这个 ：

@Component
@EnableConfigurationProperties(Wmi2017Properties.class)
public class WmiCollection {

    //@Autowired
    private Wmi2017Properties wmiProps;

public WmiCollection (Wmi2017Properties wmiProps){

this.wmiProps = wmiProps;
}