谁在S​​pring MVC（@ResponseBody）中设置响应内容类型

谁在S​​pring MVC（@ResponseBody）中设置响应内容类型

简单声明

StringHttpMessageConverter

bean是不够的，您需要将其注入

AnnotationMethodHandlerAdapter

：

<bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">    <property name="messageConverters">        <array> <bean class = "org.springframework.http.converter.StringHttpMessageConverter">     <property name="supportedMediaTypes" value = "text/plain;charset=UTF-8" /> </bean>        </array>    </property></bean>

但是，使用此方法必须重新定义all

HttpMessageConverter

，并且它也不适用于

<mvc:annotation-driven />

。

因此，也许最方便但最丑陋的方法是拦截

AnnotationMethodHandlerAdapter

with的实例化

BeanPostProcessor

：

public class EncodingPostProcessor implements BeanPostProcessor {    public Object postProcessBeforeInitialization(Object bean, String name) throws BeansException {        if (bean instanceof AnnotationMethodHandlerAdapter) { HttpMessageConverter<?>[] convs = ((AnnotationMethodHandlerAdapter) bean).getMessageConverters(); for (HttpMessageConverter<?> conv: convs) {     if (conv instanceof StringHttpMessageConverter) {         ((StringHttpMessageConverter) conv).setSupportedMediaTypes(  Arrays.asList(new MediaType("text", "html",       Charset.forName("UTF-8"))));     } }        }        return bean;    }    public Object postProcessAfterInitialization(Object bean, String name) throws BeansException {        return bean;    }}

--

<bean class = "EncodingPostProcessor " />