Restful风格API一些小的注意事项

对于Restful API访问的拦截有三种方式

 

过滤器Filter

拦截器Interceptor

切面Aspect

 

但是三者能获得的东西不一样

过滤器能获得原始http请求以及响应的信息,但是拿不到真正处理请求的方法信息

拦截器能获得原始http请求以及响应的信息,也能获得处理这个请求的方法的相关信息,但是获得不到调用方法时传过来的参数

切面能获得调用方法时传过来的参数,但是却拿不到请求的http request对象

 

 

异步并发方面,如果是同一个系统处理整个逻辑,可以用Callable接口,但是如果说中间存在中间件这种类似的功能,来作为在两个系统间传递信息的媒介,Callable接口是做不到这种功能的,即A系统调用--》中间件--》B系统处理--》返回中间件--》结果给A系统,无法实现在中间件返回后还能继续返回真正的结果,这个时候要用到DeferredResult这个对象,能够实现跨系统的异步处理功能。

restful restful所需要的jar包 ========================================= Restlet, a RESTful Web framework for Java ========================================= http://www.restlet.org ----------------------------------------- Native REST support * Core REST concepts have equivalent Java classes (UniformInterface, Resource, Representation, Connector for example). * Suitable for both client-side and server-side web applications. The innovation is that that it uses the same API, reducing the learning curve and the software footprint. * Restlet-GWT module available, letting you leverage the Restlet API from within any Web browser, without plugins. * Concept of "URIs as UI" supported based on the URI Templates standard. This results in a very flexible yet simple routing with automatic extraction of URI variables into request attributes. * Tunneling service lets browsers issue any HTTP method (PUT, DELETE, MOVE, etc.) through a simple HTTP POST. This service is transparent for Restlet applications. Complete Web Server * Static file serving similar to Apache HTTP Server, with metadata association based on file extensions. * Transparent content negotiation based on client preferences. * Conditional requests automatically supported for resources. * Remote edition of files based on PUT and DELETE methods (aka mini-WebDAV mode). * Decoder service transparently decodes compressed or encoded input representations. This service is transparent for Restlet applications. * Log service writes all accesses to your applications in a standard Web log file. The log format follows the W3C Extended Log File Format and is fully customizable. * Powerful URI based redirection support similar to Apache Rewrite module. Available Connectors * Multiple server HTTP connectors available, based on either Mortbay's Jetty or the Simple framework or Grizzly NIO framework. * AJP server connector available to let you plug behind an Apache HTT
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