@JsonIgnoreProperties(ignoreUnknown=false)在Spring4.2.0及更高版本中不起作用
@JsonIgnoreProperties(ignoreUnknown=false)不适用于Spring4.2.0和spring的更高版本。但它正在使用4.0.4和4.0.1。 我使用的是spring 4.2.8,使用的是Jackson依赖项@JsonIgnoreProperties(ignoreUnknown=false)在Spring4.2.0及更高版本中不起作用,spring,spring-mvc,jackson2,jackson-dataformat-xml,Spring,Spring Mvc,Jackson2,Jackson Dataformat Xml,@JsonIgnoreProperties(ignoreUnknown=false)不适用于Spring4.2.0和spring的更高版本。但它正在使用4.0.4和4.0.1。 我使用的是spring 4.2.8,使用的是Jackson依赖项 <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</arti
<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>
如果发送有效的对应json请求,它应该如下
{
"id": "123",
"name": "test"
}
但是,即使我发送了json请求,其中包含如下无效字段,它仍然可以接受
{
"id": "123",
"name": "test",
"anyinvalidkey": "test"
}
但是它应该给出错误的请求作为响应这是因为spring早期版本提供的
HttpMessageConverter
使用了ObjectMapper
默认配置。但较新版本的spring使用的是具有反序列化功能的Jackson2ObjectMapperBulider
。默认情况下,属性设置为false的未知属性失败。(参考)。您可以通过在applicationContext.xml中添加以下内容来解决此问题:
<bean id="jacksonObjectMapper" class="com.fasterxml.jackson.databind.ObjectMapper" />
<mvc:annotation-driven
content-negotiation-manager="contentNegotiationManager">
<mvc:message-converters>
<bean
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper" ref="jacksonObjectMapper" />
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<bean id="contentNegotiationManager"
class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="favorPathExtension" value="false" />
<property name="mediaTypes">
<value>
json=application/json
</value>
</property>
</bean>
json=应用程序/json
基于Aarya答案的基于注释的解决方案可以通过以下方式完成:
@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);
}
}
@Aarya的回答对我来说并不适用,但给了我一个很好的提示,让我四处看看。所以这对我来说是有效的。考虑到我的Spring是4.3.12版本,jackson是2.9.2版本
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper">
<bean class="com.fasterxml.jackson.databind.ObjectMapper" />
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
简易注释驱动解决方案。在@配置中:
@Bean
@Primary
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.createXmlMapper(false).build();
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true);
return objectMapper;
}
如何使用Spring Boot实现这一点?难道没有一个注释可以切换此功能而不是复制粘贴此配置吗?
@Bean
@Primary
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.createXmlMapper(false).build();
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true);
return objectMapper;
}