java - 如何用动态值实例化构造函数并 Autowiring 它？

Question

我在这里实例化了一个参数化构造函数，称为具有动态值的请求操作。如何将其@Autowire到Requestclass？随后，在Request类中，我创建了一个新的RatingResponse如何@Autowire这个？

类初始化器

public class Intializer
{ 
NewClass newclass = new NewClass();
String testName = Number + "_" + "Test"; -->getting the String number dynamically
Test test = new Test(testName); -> this is  a different class 

Operation operation = new RequestOperation(test, newclass  , 
                  sxxx, yyy, zzz); - argumented constructor
opertaion.perform();
}

请求类

public class RequestOperation implements Operation { 

// the constructor 
public RequestOperation(Test test, Sheet reportSheet, XElement element, TestDataManager testDataManager, Report report) 
{       
this.test = test;
this.newclass  = newclass  ;
this.sxxx= sxxx;
this.yyy= yyy;
this.zzz= zzz; 
    } 
    @Override   
public boolean perform(String CompanyName, String Province) {
Response response = new RatingResponse(this.test, this.reportSheet,
callService(this.buildRequest(CompanyName, Province)), this, this.report);-> create a new paramterizedconstructor
    } 

private String buildRequest(String CompanyName, String Province) { 
return pm.getAppProperties().getProperty(constructedValue); }
    }

**响应类**

    public class RatingResponse implements Response {
    public RatingResponse(Test test, Sheet reportSheet, Object obj, RequestOperation requestOperation, Report report) {
this.test = test;
if (obj instanceof Document) {
this.document = (Document) obj;
}
this.operation = requestOperation;
this.reportSheet = reportSheet;
this.report = report;
}

** 界面 **

@Component
public interface Operation {    
    public boolean perform(String Name, String Province);
    }

@Component
public interface Response {

    void construct();

}

Answer 1

在 Spring Boot 中，您只能 Autowiring 标有 @Bean 的类型或标有 @Component 或其派生类(例如 @Service、@Controller)的类

这些注释的特殊之处在于内存中仅保留该类的单个实例。

因此，如果您的要求需要为每组新动态值创建新类，那么 Autowiring 它们并不是正确的方法。

但是，如果您的类可以拥有的动态值数量有限，您可以像这样为每个值创建 bean

@Configuration
class MyBeans{

    @Bean
    public RatingResponse ratingResponse(){

        Response response = new RatingResponse(this.test, this.reportSheet,
        callService(this.buildRequest(CompanyName, Province)), this, this.report);
        return response
    }

}

然后在你需要使用的类中，就可以这样做

@Autowired 
RatingResponse ratingResponse