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PO
primarykey
Id
601145
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2009-03-02T03:01:49.850
FavoriteCount
0
LastActivityDate
2009-03-02T03:06:59.603
LastEditDate
2009-03-02T03:06:59.603
LastEditorUserId
4223
OwnerUserId
4223
ParentId
601133
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
jodonnell
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Body
That's a very broad question. At a high level, SOAP refers to the XML protocol of the messages that travel back and forth. WSDL is another XML protocol that defines the format of the SOAP messages (very useful for tools that translate SOAP requests and responses for you). Typically a SOAP service endpoint will also have a way to access the static WSDL document about that service (e.g. if a service is hosted at <a href="http://myservice.com/services/MyService" rel="nofollow noreferrer">http://myservice.com/services/MyService</a>, the WSDL will usually be served from <a href="http://myservice.com/services/MyService?WSDL" rel="nofollow noreferrer">http://myservice.com/services/MyService?WSDL</a> in most implementations). UDDI is yet another XML protocol that describes queries to a registry asking for information about SOAP services stored there. Learn SOAP and WSDL first. UDDI is not all that widely used (although getting more so slowly). JAXR is the Java API around UDDI, which means that you probably should never need to write a raw UDDI query yourself. JAXP is just a Java XML parser API. It can be used for lots of things, not just SOAP and WSDL. <a href="http://ws.apache.org/axis2" rel="nofollow noreferrer">Apache Axis</a> is a good Java SOAP client tool, and <a href="http://sourceforge.net/projects/wsdl4j" rel="nofollow noreferrer">wsdl4j</a> is a good WSDL parsing tool, although Axis will also autogenerate SOAP requests and responses from Java objects for you by parsing WSDL. Optimally, you should never need to parse a WSDL document yourself, but you often have to in practice when the tool doesn't quite do what you want.
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1. POTrying to get a handle on Web Services?
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1. USjodonnell
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1. USjodonnell
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