ssm框架中文请求乱码get

<bean id="utf8Charset" class="java.nio.charset.Charset"
      factory-method="forName">
    <constructor-arg value="UTF-8"/>
</bean>

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.StringHttpMessageConverter">
            <constructor-arg ref="utf8Charset"/>
           <!-- <property name="supportedMediaTypes" value="application/json;charset=utf-8"/>-->
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>