wiki配置

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4">
            <!-- MediaTypes -->
            <property name="supportedMediaTypes">
                <list>
                    <value>application/json</value>
                </list>
            </property>
            <!-- FastJsonConfig -->
            <property name="fastJsonConfig" ref="fastJsonConfig" />
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

<mvc:default-servlet-handler />

然后问题就来了。无论我用
com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4
亦或是
com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter
这两个类，在springmvc4.2.5 4.1.6中 一旦配置了

<property name="supportedMediaTypes">
                <list>
                    <value>application/json</value>
                </list>
</property>

配置了这一段，springmvc
在 @responsebody 后
会返回406.也就是 网上都会搜到的 org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
我一旦把

<property name="supportedMediaTypes">
                <list>
                    <value>application/json</value>
                </list>
</property>

去掉。变成

<mvc:annotation-driven>
        <mvc:message-converters>
            <bean
                class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4">
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

变成这样以后，一切正常，不论是4.2.5 还是4.1.6
闹心。
我追看了下源码

public abstract class AbstractHttpMessageConverter<T> implements HttpMessageConverter<T> {

    /**Logger available to subclasses */
    protected final Log logger = LogFactory.getLog(getClass());

    private List<MediaType> supportedMediaTypes = Collections.emptyList();

       /**
     * Set the list of {@link MediaType} objects supported by this converter.
     */
    public void setSupportedMediaTypes(List<MediaType> supportedMediaTypes) {
        Assert.notEmpty(supportedMediaTypes, "'supportedMediaTypes' must not be empty");
        this.supportedMediaTypes = new ArrayList<MediaType>(supportedMediaTypes);
    }

的确有set注值的地方。不解。求关爱帮助

下面贴下jar包环境

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.16</version>
        </dependency>

<spring.version>4.2.5.RELEASE</spring.version>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>