Jackson转换器和Javax验证（注释）不能一起工作

Question

如果我使用以下配置，那么jackson转换器工作（mvc声明是最后）

<!-- Configure to plugin JSON as request and response in method handler -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonMessageConverter"/>
        </list>
    </property>
</bean>

<!-- Configure bean to convert JSON to POJO and vice versa -->
<bean id="jsonMessageConverter"      class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
</bean>
<context:component-scan base-package="com.base" />
<mvc:annotation-driven />

如果我在dispatcher.xml中使用此配置，那么验证工作，但转换不工作。（mvc声明优先）

<context:component-scan base-package="com.base" />

<mvc:annotation-driven />

<!-- Configure to plugin JSON as request and response in method handler -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonMessageConverter"/>
        </list>
    </property>
</bean>

<!-- Configure bean to convert JSON to POJO and vice versa -->
<bean id="jsonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
</bean>

非常感谢您的任何帮助。Spring版本4.0.6

Answer 1

我选择了验证工作的部分，并将其添加到代码库中。

@RequestMapping(value = "url", method = RequestMethod.GET)
protected void getLocationAsJson(@PathVariable("id")   Integer id,
 @RequestParam("cid") Integer cid, HttpServletResponse response) {
    MappingJacksonHttpMessageConverter jsonConverter = 
            new MappingJacksonHttpMessageConverter();
    Location loc= new Location(id);
    MediaType jsonMimeType = MediaType.APPLICATION_JSON;
    if (jsonConverter.canWrite(requestedLocation.getClass(), jsonMimeType)) {
    try {
        jsonConverter.write(requestedLocation, jsonMimeType,
                               new ServletServerHttpResponse(response));
        } catch (IOException m_Ioe) {
            // TODO: announce this exception somehow
        } catch (HttpMessageNotWritableException p_Nwe) {
            // TODO: announce this exception somehow
        }
    }
}

现在，验证和JSON返回一样有效。该方法不返回任何内容。