RequestBodyAdvice和ResponseBodyAdvice

系列文章目录

springmvc核心流程及配置
springmvc处理模型数据
springmvc返回json
数据绑定
springmvc注解的使用
springmvc异常处理
springmvc拦截器
spring与springmvc整合
使用springSession完成分布式session
spring获取当前request
springmvc参数解析
RequestBodyAdvice和ResponseBodyAdvice

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RequestBodyAdvice和ResponseBodyAdvice

有两个接口

RequestBodyAdvice和ResponseBodyAdvice 在spring4中新添加的两个接口

RequestBodyAdvice接口

该接口是在获取@RequestBody参数数据之前进行处理的

public interface RequestBodyAdvice {

   
   boolean supports(MethodParameter methodParameter, Type targetType,
         Class<? extends HttpMessageConverter<?>> converterType);

   
   Object handleEmptyBody(Object body, HttpInputMessage inputMessage, MethodParameter parameter,
         Type targetType, Class<? extends HttpMessageConverter<?>> converterType);

   
   HttpInputMessage beforeBodyRead(HttpInputMessage inputMessage, MethodParameter parameter,
         Type targetType, Class<? extends HttpMessageConverter<?>> converterType) throws IOException;

   
   Object afterBodyRead(Object body, HttpInputMessage inputMessage, MethodParameter parameter,
         Type targetType, Class<? extends HttpMessageConverter<?>> converterType);

}

ResponseBodyAdvice接口

该接口是在消息体被HttpMessageConverter消息解析器写入之前执行的

public interface ResponseBodyAdvice<T> {

   
   boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType);

   
   T beforeBodyWrite(T body, MethodParameter returnType, MediaType selectedContentType,
         Class<? extends HttpMessageConverter<?>> selectedConverterType,
         ServerHttpRequest request, ServerHttpResponse response);

}

参考文献

• RequestBodyAdvice和ResponseBodyAdvice