How do you globally set Jackson to ignore unknown properties within Spring?

For jackson 1.9x or below you can ignore unknown properties with object mapper provider

@Provider@Componentpublic class JerseyObjectMapperProvider implements ContextResolver<ObjectMapper> {    @Override    public ObjectMapper getContext(Class<?> type) {        ObjectMapper result = new ObjectMapper();        result.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);        return result;    }}

For jackson 2.x and above you can ignore unknown properties with object mapper provider

@Provider@Componentpublic class JerseyObjectMapperProvider implements ContextResolver<ObjectMapper> {    @Override    public ObjectMapper getContext(Class<?> type) {        ObjectMapper result = new ObjectMapper();        result.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);        return result;    }}

Jersey classes are not auto-discovered by Spring. Have to register them manually.

public class JerseyConfig extends ResourceConfig {    public JerseyConfig() {        register(JerseyObjectMapperProvider.class);    }}

This can be achieved using spring's MethodInvokingFactoryBean:

<!-- Jackson Mapper --><bean id="jacksonObjectMapper" class="org.codehaus.jackson.map.ObjectMapper" /><bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">    <property name="targetObject" ref="jacksonObjectMapper" />    <property name="targetMethod" value="configure" />    <property name="arguments">        <list>            <value type="org.codehaus.jackson.map.DeserializationConfig.Feature">FAIL_ON_UNKNOWN_PROPERTIES</value>            <value>false</value>        </list>    </property></bean>

This can be wired to a RestTemplate like this:

<bean id="restTemplate" class="org.springframework.web.client.RestTemplate">    <property name="messageConverters">        <list>            <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">                <property name="objectMapper" ref="jacksonObjectMapper" />            </bean>        </list>    </property></bean>

It can also be injected directly into the message converters for use with Spring MVC:

<mvc:annotation-driven>    <mvc:message-converters>        <!-- Jackson converter for HTTP messages -->        <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">            <property name="objectMapper" ref="jacksonObjectMapper" />        </bean>    </mvc:message-converters></mvc:annotation-driven>

For newer Jackson versions (2.x) there are a few changes:

<!-- Jackson Mapper --><bean id="jacksonObjectMapper" class="com.fasterxml.jackson.databind.ObjectMapper" /><bean    class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">    <property name="targetObject" ref="jacksonObjectMapper" />    <property name="targetMethod" value="configure" />    <property name="arguments">        <list>            <value type="com.fasterxml.jackson.databind.DeserializationFeature">FAIL_ON_UNKNOWN_PROPERTIES</value>            <value>false</value>        </list>    </property></bean>