There is a definitions element at the root, and
definitions inside [表示：有一个根元素定义 内部代码：
*
?
? ? * <-- extensibility element --> *
* ? *
* ? * ? ? ?
? ?
* ?
* ? <-- extensibility element --> * * ? <-- extensibility element --> * ? ? <-- extensibility element -->
? ? <-- extensibility element --> *
* ? <-- extensibility element --> *
* ? * ? <-- extensibility element -->
<-- extensibility element -->
<-- extensibility element --> *
基本的结构就是上面的那样子！
Services are defined using six major elements:［主要有六个主要元素实现定义的！］
types,
which provides data type definitions used to describe the
messages exchanged.［WSDL的数据类型定义］
message,
which represents an abstract definition of the data being
transmitted. A message consists of logical parts,
each of which is associated with a definition within some
type system.［消息即什么样的数据被交换即表示的是一种数据类型。在实际的交换过程中的数据类型！］
portType,
which is a set of abstract operations. Each
operation refers to an input message and output messages.［抽象操作的集合就相当于一个类了。里面有多种方法］
binding,
which specifies concrete protocol and data format
specifications for the operations and messages defined by
a particular portType.［开始绑定］
port,
which specifies an address for a binding, thus defining a
single communication endpoint.［绑定的地址］
service,
which is used to aggregate a set of related ports.
2.1.1 Document Naming and Linking
*
这样做的好处解决了命名空间与文档定义的联系！
The use of the import element allows the separation of the different elements of a service definition into independent documents, which can then be imported as needed
data type definitions, abstract
definitions, and specific service bindings （将其三部分进行了分离说明！）
An
indication that a binding uses HTTP GET or POST
An
address for the port
A
relative address for each operation (relative to the base
address defined by the port)
即表示：服务端与客户端的语言平台可能不一致的情况！
相关的标签如下：
4.3 http:address
4.
4.
The location attribute specifies a relative URI for the
operation. This URI is combined with the URI specified in
the http:address element to form the full URI for the HTTP
request. The URI value MUST be a relative URI.
4.
The urlEncoded element indicates that all the message parts
are encoded into the HTTP request URI using the standard URI-encoding
rules (name1=value&name2=value…). The names
of the parameters correspond to the names of the message parts.
Each value contributed by the part is encoded using a name=value
pair. This may be used with GET to specify URL encoding, or
with POST to specify a FORM-POST. For GET, the "?"
character is automatically appended as necessary.
The http:urlReplacement element indicates that all the
message parts are encoded into the HTTP request URI using a
replacement algorithm:
5.
MIME Binding
WSDL includes a way to bind abstract types to concrete messages
in some MIME format. Bindings for the following MIME types
are defined:
multipart/related
text/xml
application/x-www-form-urlencoded
(the format used to submit a form in HTML)
Others (by
specifying the MIME type string)
手册帮助说明：
Extensibility elements can appear at the following locations
in a WSDL document:
Location
Meaning
Possible
usage
definitions
The
extensibility element applies to the WSDL document as a
whole.
·
Introduce additional information or definitions to a WSDL
document as a whole.
definitions/types
The
extensibility element is a type system.
·
Specify the format of the message in a type system other
than XSD.
definitions/service
The
extensibility element applies to the service.
·
Introduce additional information or definitions for the
service.
definitions/service/port
The
extensibility element applies to the port.
·
Specify an address for the port.
definitions/binding
The
extensibility element applies to the binding as a whole.
·
Provide protocol specific information that applies to all
the operations in the port type being bound.
definitions/binding/operation
The
extensibility element applies to the operation as a whole.
·
Provide protocol specific information that applies to
both the input message and the output message.
definitions/binding/operation/input
The
extensibility element applies to the input message for
the operation.
·
Provide details on how abstract message parts map into
the concrete protocol and data formats of the binding.
·
Provide additional protocol specific information for the
input message.
definitions/binding/operation/output
The
extensibility element applies to the output message of
the operation.
·
Provide details on how abstract message parts map into
the concrete protocol and data formats of the binding.
·
Provide additional protocol specific information for the
output message.
definitions/binding/operation/fault
The
extensibility element applies to a fault message of the
operation.
·
Provide details on how abstract message parts map into
the concrete protocol and data formats of the binding.
·
Provide additional protocol specific information for the
fault message.
