SOAP与HTTP交互详解-优快云博客

HTTP协议

HTTP在TCP/IP之上进行通信。HTTP客户机使用TCP连接到HTTP服务器。在建立连接之后，客户机可向服务器发送HTTP请求消息：

SOAP HTTP Binding

soap方法指的是遵守SOAP编码规则的HTTP请求/响应。

HTTP+XML=SOAP

SOAP请求可能是HTTP POST或HTTP GET

HTTP Post请求规定至少两个HTTP头：Content-Type和Content-Length。

Content-Type

SOAP的请求和响应的Content-Type头可定义消息的MIME类型，以及用于请求或响应的XML主体的字符编码

Content-Type:MIMEType;charset=character-encoding

POST /item HTTP/1.1
Content-Type: application/soap+xml; charset=utf-8

Content-Length

SOAP的

POST /item HTTP/1.1
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 250

请求和响应的Content-Length头规定请求或响应的主体的字节数

一个 SOAP 实例

在下面的例子中，一个 GetStockPrice 请求被发送到了服务器。此请求有一个 StockName 参数，而在响应中则会返回一个 Price 参数。此功能的命名空间被定义在此地址中： "http://www.example.org/stock"

SOAP 请求：

POST /InStock HTTP/1.1
Host: www.example.org
Content-Type: application/soap+xml; charset=utf-8
Content-Length: nnn

<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">

  <soap:Body xmlns:m="http://www.example.org/stock">
    <m:GetStockPrice>
      <m:StockName>IBM</m:StockName>
    </m:GetStockPrice>
  </soap:Body>
  
</soap:Envelope>

SOAP 响应：

HTTP/1.1 200 OK
Content-Type: application/soap+xml; charset=utf-8
Content-Length: nnn

<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">

  <soap:Body xmlns:m="http://www.example.org/stock">
    <m:GetStockPriceResponse>
      <m:Price>34.5</m:Price>
    </m:GetStockPriceResponse>
  </soap:Body>
  
</soap:Envelope>