【发布时间】:2011-08-13 23:38:20
【问题描述】:
我有一个带有 Spring 3.0.5.RELEASE 的应用程序,它试图使用 @RequestBody 获取帖子的全部内容。该方法被调用,但传递的字符串始终为空。我通过放置断点检查了是否调用了 StringHttpMessageConverter,但内部 HttpInputMessage 为空。
我在 Jetty 和 Tomcat 上都看到过这个问题,所以我放弃了这是容器的问题。
这是我的示例控制器:
@Controller
@RequestMapping("/")
public class SubscriptionController {
@RequestMapping(value = "/requestbody", method = RequestMethod.POST)
public ModelAndView mycustomAction(@RequestBody String body) {
// body is always empty
Logger.getLogger(this.getClass()).debug("REQUEST BODY '" + body + "'");
return new ModelAndView("empty");
}
}
我的应用上下文定义如下:
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- Enable auto detection of controllers -->
<context:component-scan base-package="com.big.viajerotelcel.controller" />
<!--
use annotation driven mvc and one single validator with JSR-303
standard
-->
<mvc:annotation-driven />
<!--
Message source for this context, loaded from localized "messages_xx"
files
-->
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basenames" value="classpath:i18n/messages" />
<property name="defaultEncoding" value="UTF-8" />
</bean>
<!-- Declare the Interceptor -->
<mvc:interceptors>
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"
p:paramName="locale" />
</mvc:interceptors>
<!-- Declare the Resolver -->
<bean id="localeResolver"
class="org.springframework.web.servlet.i18n.SessionLocaleResolver" />
<!-- will load Tiles definitions! -->
<bean id="tilesConfigurer"
class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/general.xml</value>
</list>
</property>
</bean>
<!-- Tiles view resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.tiles2.TilesView" />
</bean>
<!-- Configure the multipart resolver -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!--
one of the properties available; the maximum file size in bytes (5MB)
-->
<property name="maxUploadSize" value="5120000" />
</bean>
<!-- Adding these lines has no effect, the StringHttpMessageConverter is called either way -->
<!-- <bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter"/>-->
<!-- -->
<!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">-->
<!-- <property name="messageConverters">-->
<!-- <list>-->
<!-- <ref bean="stringHttpMessageConverter"/>-->
<!-- </list>-->
<!-- </property>-->
<!-- </bean>-->
</beans>
我正在使用 curl 进行如下测试:
curl -d asd=123 -d qwe=456 http://localhost:8080/requestbody
欢迎任何想法或帮助!
【问题讨论】:
-
你有拦截器吗?也许他们对请求对象做了一些事情,以使以下对请求正文的访问变得无用?请记住,您可以使用请求阅读器或请求流,但不能同时使用两者。
-
如我的上下文 xml 文件中所示,我确实有一个 LocaleChangeInterceptor,但即使删除它后问题仍然存在。
标签: java spring spring-mvc