Spring 406不接受来自ajax的请求

我得到了406分，这是不可接受的，我的时间都在消耗。我试了很多，但是没有解决，请帮帮我

ajax

$('#cls').autocomplete({
               source: function(request, response) {
                $.ajax({
                    url: "classes.htm",
                    data: {},
                    contentType: "application/json; charset=utf-8",
                    success: function(data) {
                        alert(data);
                        response(data.names)
                    }
                    ,
                    error:function(jqXHR, textStatus, errorThrown){
                    alert(textStatus);
                    }
                })
                }
            });

弹簧控制器

@RequestMapping(value="/classes.htm", method = RequestMethod.GET, headers="Accept=*/*")
    public @ResponseBody List<String> getClasses() {
        System.out.println("ajax");
        List<Classes> classes = homeService.getClasses();
        List<String> clsNames = new ArrayList<String>();
        for(Classes cls: classes)
        {
            clsNames.add(cls.getName());
        }
        return clsNames;
    }

项目中还添加了jackson mapper、jackson core和jackson JAXR。 有人请帮助我，我在stackoverflow中看到了类似的问题，解决方案是降级到Spring3.1，这是真的吗。我现在正在使用3.2

---

感谢和问候

使用相同的配置，我降级到spring 3.1，这很有效。为什么不在3.2版本中？您是否尝试过更改jackson的版本？您是否尝试过直接从浏览器而不是通过PHP访问端点？如果是这样的话，你也会犯同样的错误吗？我刚刚用Spring3.2解决了这个问题，看起来你做的一切都是正确的。唯一的区别是我使用的是Jackson 2.x，而不是1.x

<?xml  version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd>
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">


    <context:annotation-config />
    <context:component-scan base-package="org.app.bluez." />
    <mvc:annotation-driven />

    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/pages/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <bean id="messageSource"
        class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <property name="basename" value="classpath:resources/messages" />
        <property name="defaultEncoding" value="UTF-8" />
    </bean>
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
        p:location="/WEB-INF/jdbc.properties" />

    <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
            <property name="jndiName" value="java:comp/env/jndiName"/>
        </bean>


    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:resources/hibernate.cfg.xml</value>
        </property>
        <property name="packagesToScan" value="org.app.bluez.domain" />
        <property name="configurationClass">
            <value>org.hibernate.cfg.AnnotationConfiguration</value>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
    </bean>

    <tx:annotation-driven />
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />  
</beans>

**Response Headers**
Content-Length  1070
Content-Type    text/html;charset=utf-8
Date    Sat, 11 May 2013 21:59:55 GMT
Server  Apache-Coyote/1.1

**Request Headers**
Accept  */*
Accept-Encoding gzip, deflate
Accept-Language en-US,en;q=0.5
Connection  keep-alive
Content-Type    application/json; charset=utf-8
Cookie  JSESSIONID=DDAC77BE351C26015C6494685E7AC225
DNT 1
Host    localhost:8084
Referer http://localhost:8084/Bluez/register.htm
User-Agent  Mozilla/5.0 (Windows NT 5.1; rv:20.0) Gecko/20100101 Firefox/20.0
X-Requested-With    XMLHttpRequest