2017-08-31 70 views
1

我有一個簡單的控制器反序列化錯誤春季啓動反應

@RestController 
@RequestMapping("path") 
public class MyController { 

    @PostMapping(consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE) 
    public Flux<SomeObject> run(@RequestBody Flux<RequestObject> request){ 

     //do something and return flux 
    } 
    ... 
} 

在調用這個網址我得到異常

"Type definition error: [simple type, class reactor.core.publisher.Flux]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Can not construct instance of reactor.core.publisher.Flux (no Creators, like default construct, exist): abstract types either need to be mapped to concrete types, have custom deserializer, or contain additional type information\n at [Source: (PushbackInputStream); line: 1, column: 1] 

我明白了這個錯誤,通常,我只想補充一個 註釋如果需要

@JsonDeserialize(as = SomeConcreteClass.class)

但是在這種情況下,我應該綁定Flux具體示例?另外,Spring boot是否具有用於反應堆類型(單聲道,通量)的默認自動解串器?

我POM(相關的東西):

<dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-web</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-webflux</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.data</groupId> 
     <artifactId>spring-data-commons</artifactId> 
    </dependency> 

回答

2

你實際上是在使用Spring MVC現在。

刪除spring-boot-starter-web並確保沒有其他依賴項能夠傳遞它。