Spring和jackson，如何通过@ResponseBody禁用FAIL_ON_EMPTY_BEANS [英] Spring and jackson, how to disable FAIL_ON_EMPTY_BEANS through @ResponseBody

问题描述

春天是否有全局配置可以为所有使用@ResponseBody注释的控制器禁用弹簧FAIL_ON_EMPTY_BEANS？

Is there a global configuration in spring that can disable spring FAIL_ON_EMPTY_BEANS for all controller annotated with @ResponseBody?

推荐答案

你可以配置 configureMessageConverters时配置对象映射器

@Bean
public MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter() {
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    MappingJackson2HttpMessageConverter converter = 
        new MappingJackson2HttpMessageConverter(mapper);
    return converter;
}

如果您想知道如何在您的申请中做到完全，请更新您的配置文件的问题（xml或java配置）。

If you want to know how to do exactly in your application, please update your question with your configuration files (xml or java configs).

这是一个很好的文章如何自定义邮件转换器。

Here is a good article how to customize message converters.

编辑：如果您使用的是XML而不是Java配置，则可以创建一个自定义 MyJsonMapper 使用自定义配置扩展 ObjectMapper 的类，然后按如下方式使用

If you are using XML instead of Java configs, you can create a custom MyJsonMapper class extending ObjectMapper with custom configuration, and then use it as follows

public class MyJsonMapper extends ObjectMapper {    
        public MyJsonMapper() {
            this.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        }
}

在您的XML中：

<mvc:annotation-driven>
        <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="jacksonObjectMapper" class="com.mycompany.example.MyJsonMapper" >

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