简单声明
StringHttpMessageConverterbean是不够的，你需要将其注入
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
AnnotationMethodHandlerAdapterwith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 " />
