ResponseBodyAdvice与RequestBodyAdvice

转载自：https://blog.youkuaiyun.com/ai_xiangjuan/article/details/79837712

ResponseBodyAdvice

主要作用是响应体写出之前做一些处理。

@Order(1)  
@ControllerAdvice(basePackages = "com.github")  
public class MyResponseBodyAdvice implements ResponseBodyAdvice<Object> {  

    @Override  
    public boolean supports(MethodParameter methodParameter, Class<? extends HttpMessageConverter<?>> converterType) {  
        return methodParameter.getMethod().getReturnType().isAssignableFrom(User.class);  
    }  

    @Override  
    public Object beforeBodyWrite(  
            Object obj, MethodParameter methodParameter, MediaType mediaType,  
            Class<? extends HttpMessageConverter<?>> converterType,  
            ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {  

        User user = ((User)obj);  
        user.setName("---" + user.getName() + "---");  
        return user;  
    }  
}

RequestBodyAdvice

请求增强。在读取请求body之前或者在body转换成对象之前可以做相应的增强。