@JsonIgnoreProperties(ignoreUnknown = false)在Spring 4.2.0和更高版本中不起作用 [英] @JsonIgnoreProperties(ignoreUnknown=false) is not working in Spring 4.2.0 and upper version

问题描述

@JsonIgnoreProperties(ignoreUnknown = false)在spring 4.2.0和spring的更高版本中不起作用.但是它正在使用4.0.4和4.0.1. 我正在使用Spring 4.2.8，并使用了Jackson依赖项

@JsonIgnoreProperties(ignoreUnknown=false) is not working with spring 4.2.0 and upper version of spring. But it is working with 4.0.4 and 4.0.1 . I am using spring 4.2.8 and Jackson dependencies are used

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.6.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.6.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.6.3</version>
</dependency>

如果我发送带有无效字段的json请求，则它被接受为有效请求.但是它应该给出错误的请求作为响应. 例如:如果我上课

If I send json request with invalid fields then it is accepting as a valid request. But it should give the bad request as response. For example: If I have class

public class Student{ 
    private String id; 
    private String name; 
}

如果发送有效的对应json请求，则应为

If send valid corresponding json request it should be like

{ 
   "id": "123", 
   "name": "test" 
}

但是，即使我发送带有无效字段(如下所示)的json请求，它仍然可以接受.

But even if I send json request with invalid fields like below it is still accepting.

{ 
    "id": "123", 
    "name": "test", 
    "anyinvalidkey": "test" 
}

但是它应该给出错误的请求作为响应

But it should give the bad request as response

推荐答案

基于注释的基于Aarya答案的解决方案可以通过以下方式完成:

An annotation based solution to the based on the answer from Aarya can done in the following way:

@Configuration
public class Config implements InitializingBean {

    @Autowired
    private RequestMappingHandlerAdapter converter;

    @Override
    public void afterPropertiesSet() throws Exception {
        configureJacksonToFailOnUnknownProperties();
    }

    private void configureJacksonToFailOnUnknownProperties() {
        MappingJackson2HttpMessageConverter httpMessageConverter = converter.getMessageConverters().stream()
                .filter(mc -> mc.getClass().equals(MappingJackson2HttpMessageConverter.class))
                .map(mc -> (MappingJackson2HttpMessageConverter)mc)
                .findFirst()
                .get();

        httpMessageConverter.getObjectMapper().enable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    }
}

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