REST和HTTP协议有什么区别？ [英] What is the difference between REST and HTTP protocols?
问题描述
什么是REST协议？它与HTTP协议的区别是什么？
What is the REST protocol and what does it differ from HTTP protocol ?
推荐答案
REST是一种利用HTTP的方法协议，并不是它的替代品。
REST is an approach that leverages the HTTP protocol, and is not an alternative to it.
- http://en.wikipedia.org/wiki/Representational_State_Transfer
数据是唯一的由URL引用，可以使用HTTP操作（GET，PUT，POST，DELETE等）进行操作。消息/响应支持各种各样的mime类型，但XML和JSON是最常见的。
Data is uniquely referenced by URL and can be acted upon using HTTP operations (GET, PUT, POST, DELETE, etc). A wide variety of mime types are supported for the message/response but XML and JSON are the most common.
例如，要读取有关客户的数据，您可以使用HTTP使用URL http://www.example.com/customers/1 进行操作。如果要删除该客户，只需使用具有相同URL的HTTP删除操作。
For example to read data about a customer you could use an HTTP get operation with the URL http://www.example.com/customers/1. If you want to delete that customer, simply use the HTTP delete operation with the same URL.
下面的Java代码演示了如何通过HTTP协议进行REST调用：
The Java code below demonstrates how to make a REST call over the HTTP protocol:
String uri =
"http://www.example.com/customers/1";
URL url = new URL(uri);
HttpURLConnection connection =
(HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Accept", "application/xml");
JAXBContext jc = JAXBContext.newInstance(Customer.class);
InputStream xml = connection.getInputStream();
Customer customer =
(Customer) jc.createUnmarshaller().unmarshal(xml);
connection.disconnect();
对于Java（JAX-RS）示例，请参阅：
For a Java (JAX-RS) example see:
- http://bdoughan.blogspot.com/2010/08/creating-restful-web-service-part-45.html
这篇关于REST和HTTP协议有什么区别？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
