<!-- 解决JSON乱码问题 -->

    <mvc:annotation-driven>

        <mvc:message-converters register-defaults="true">

            <bean class="org.springframework.http.converter.StringHttpMessageConverter">

                <constructor-arg value="UTF-8"/>

            </bean>

            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

                <property name="objectMapper">

                    <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">

                        <property name="failOnEmptyBeans" value="false"/>

                    </bean>

                </property>

            </bean>

        </mvc:message-converters>

    </mvc:annotation-driven>