摘要：

本文对RESTful HTTP的基础原理做了一个概览，探讨了开发者在设计RESTful HTTP应用时所面临的典型问题，展示了如何在实践中应用REST架构风格，描述了常用的URI命名方法，讨论了如何使用统一接口进行资源交互，何时使用PUT或POST以及如何支持非CURD操作等。

Java 调用

HttpClient httpClient = new HttpClient();

IHttpRequest request = new GetRequest(centralHotelURI);

IHttpResponse response = httpClient.call(request);
REQUEST:

GET /hotel/656bcee2-28d2-404b-891b HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 277

Content-Type: application/x-www-form-urlencoded

classification=Comfort&name=Central&RoomURI=http%3A%2F%2Flocalhost%2Fhotel%2F

656bcee2-28d2-404b-891b%2FRoom%2F2&RoomURI=http%3A%2F%2Flocalhost%2Fhotel%2F6

56bcee2-28d2-404b-891b%2FRoom%2F1

指定get部分属性

REQUEST:

GET /hotel/656bcee2-28d2-404b-891b/classification HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Accept: application/x-www-form-urlencoded

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 26

Content-Type: application/x-www-form-urlencoded; charset=utf-8

classification=Comfort
REQUEST:

GET /hotel/656bcee2-28d2-404b-891b/classification,name HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Accept: application/x-www-form-urlencoded

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 43

Content-Type: application/x-www-form-urlencoded; charset=utf-8

classification=Comfort&name=Central
REQUEST:

GET /hotel/656bcee2-28d2-404b-891b?reqAttr=classification&reqAttr=name HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Accept: application/x-www-form-urlencoded

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 43

Content-Type: application/x-www-form-urlencoded; charset=utf-8

classification=Comfort&name=Central

JSON格式：

REQUEST:

GET /hotel/656bcee2-28d2-404b-891b HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Accept: application/json

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 263

Content-Type: application/json; charset=utf-8

{"classification":"Comfort",

"name":"Central",

"RoomURI":["http://localhost/hotel/656bcee2-28d2-404b-891b/Room/1",

       "http://localhost/hotel/656bcee2-28d2-404b-891b/Room/2"]}

XML格式：

REQUEST:

GET /hotel/656bcee2-28d2-404b-891b HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Accept: text/xml

RESPONSE:

HTTP/1.1 406 No match for accept header

Server: xLightweb/2.6

Content-Length: 1468

Content-Type: text/html; charset=iso-8859-1

<html>

   <head>

      <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>

      <title>Error 406 No match for accept header</title>

   </head>

   <body>

       <h2>HTTP ERROR: 406</h2><pre>No match for accept header</pre>

         ...

   </body>

</html>

PUT方法：

REQUEST:

PUT Hotel/guest/bc45-9aa3-3f22d HTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Content-Length: 94

Content-Type: application/x-www-form-urlencoded

zip=30314&lastName=Gump&street=42+Plantation+Street&firstName=Forest&country=US&

city=Baytown&state=LA

RESPONSE:

HTTP/1.1 200 OK

Server: xLightweb/2.6

Content-Length: 36

Content-Type: text/plain; charset=utf-8

Location: http://localhost/guest/bc45-9aa3-3f22d

The guest resource has been updated.

POST创建：

REQUEST:

POST /HotelHTTP/1.1

Host: localhost

User-Agent: xLightweb/2.6

Content-Length: 35

Content-Type: application/x-www-form-urlencoded; charset=utf-8

Accept: text/plain

classification=Comfort&name=Central

RESPONSE:

HTTP/1.1 201 Created

Server: xLightweb/2.6

Content-Length: 40

Content-Type: text/plain; charset=utf-8

Location: http://localhost/hotel/656bcee2-28d2-404b-891b

the Hotelresource has been created

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