java - 反序列化类中的 Autowiring

Question

如何在反序列化类中 Autowiring ？

这是映射类:

@Component
@JsonIgnoreProperties(ignoreUnknown = true)
@JsonNaming(PropertyNamingStrategy.PascalCaseStrategy.class)
public class Container {


    @Autowired
    private CalcResourceUsage calcResourcePercentage;
    private ContainerStats containerStats;
    @Autowired
    private AverageResourceUsage averageResourceUsage;

    public Container(){
        SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);
    }


    private String Id;


    private List<String> Names;

    public String getId() {
        return Id;
    }

    public void setId(String id) {
        Id = id;
    }

    public List<String> getNames() {
        return Names;
    }

    public void setNames(List<String> names) {
        Names = names;
    }

    public CalcResourceUsage getCalcResourcePercentage() {
        return calcResourcePercentage;
    }


    public AverageResourceUsage getAverageResourceUsage() {
        return averageResourceUsage;
    }

    public ContainerStats getContainerStats() {
        return containerStats;
    }

    public void setContainerStats(ContainerStats containerStats) {
        this.containerStats = containerStats;
    }
}

所以我使用 jackson 将对象映射到这个类中，使用这行代码:

Container[] containers = syncRestTemplate.getForObject(address + "json", Container[].class);

然后我有一个数组，我需要为每个容器做一些计算，如果我可以 Autowiring CalcResourceUsage 和 AverageResourceUsage，我可以为每个容器做一些计算。

当前 getAverageResourceUsage() 和 getCalcResourcePercentage() 返回 null

Answer 1

可以将反序列化后的对象传递给AutowireCapableBeanFactory进行布线(使用autowireBean()方法)。

例子:

@Autowired
private AutowireCapableBeanFactory beanFactory;

public void doDeserialization() {

   Container[] containers = // get them via jackson
   for (Container container : containers) {
      beanFactory.autowireBean(container);
      // container will now have its dependencies autowired.
   }
}