Question

我想在我的Spring（4.2.6）MVC控制器中配置我的Jackson（2.7.4）缩进输出（漂亮打印）。

我的控制器有@ResponseBody，当然转换为JSON。我正在使用context.xml文件。到目前为止我有这个：

    <mvc:annotation-driven>
    <mvc:message-converters register-defaults="true">
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
            <property name="objectMapper">
                <bean class="com.fasterxml.jackson.databind.ObjectMapper">
                    <!---  WHAT GOES HERE -->
                </bean>
            </property>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

我想设置ObjectMapper的configure（SerializationFeature f，boolean state），如下所示：

configure(SerializationFeature.INDENT_OUTPUT, TRUE)

我如何在春天的环境中做到这一点？

Answer 1

您可以使用Jackson2ObjectMapperFactoryBean配置ObjectMapper实例

实施例

<property name="objectMapper">
    <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
        p:failOnEmptyBeans="false"
        p:indentOutput="true">
        <!-- Other properties -->
    </bean>
</property>

Answer 2

你看起来像这样吗？

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
            <property name="objectMapper">
                <bean class="com.kulhade.config.CustomObjectMapper">
                    <constructor-arg type="com.fasterxml.jackson.databind.SerializationFeature" value="INDENT_OUTPUT"/>
                    <constructor-arg type="boolean" value="true"/>
                </bean>
            </property>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

下面是CustomObjectMapper

   public class CustomObjectMapper extends ObjectMapper{

    public CustomObjectMapper(SerializationFeature feature,boolean value) {
        this.configure(feature, value);
    }
}

在spring配置中设置Object Mapper SerializationFeature

2 个答案: