转换为JSON时出现java堆栈溢出问题

Question

这是我的代码片段。我必须使用ForkJoin进行并行调用，但我的抛出堆栈溢出，甚至没有到达服务调用

请求：

@NoArgsConstructor
@Getter
@Setter
public class Request{

    @JsonProperty("id")
    private String id;

    public Request id(String id){
      this.id=id;
      return this;
    }

    public static Request getRequest(AnotherRequest anotherReq){
        return new Request().id(anotherReq.identity);
    }

    public String getJson() throws Exception {
     return new ObjectMapper().writeValueasString(this);
    }

}

MyCallable：

@AllargsConstructor
MyCallable implements Callable<Response> {
  private Service service;
  private Request request;
  public Response call () throws Exception{
     return service.callWebservice(this.request.getJson());
  }

}

主要方法：

@Autowired
private Service service;
List<MyCallable> jobs = new ArrayList<MyCallable>()
anotherRequestSS.forEach(anotherRequest->{
  jobs.add(new MyCallable(Request.getRequest(anotherRequest),service);
}

ForkJoinPool pool = new ForkJoinPool(Runtime.getRuntime().availableProcessors());

pool.invokeAll(jobs);

这段代码进入无限循环，这意味着getJson被称为无限次，导致堆栈溢出。它甚至没有达到invokeAll()的程度。这可能是什么原因

列表大小anotherRequestSS为2

Answer 1

问题是fasterxml将方法“getJson（）”解释为一个属性，它必须包含在生成的JSON中

把你的课改写成

@NoArgsConstructor
@Getter
@Setter
public class Request{

  @JsonProperty("id")
  private String id;

  public Request id(String id){
    this.id=id;
    return this;
  }

  public static Request getRequest(AnotherRequest anotherReq){
    return new Request().id(anotherReq.identity);
  }

  public String asJson() throws Exception {
    return new ObjectMapper().writeValueAsString(this);
  }
}

还有你的MyCallable

@AllargsConstructor
MyCallable implements Callable<Response> {
  private Service service;
  private Request request;
  public Response call () throws Exception{
     return service.callWebservice(this.request.asJson());
  }
}