A WSDL endpoint in Mule allows invoking web services without generating a client. At runtime, it reads the WSDL to determine how to call the remote service and constructs SOAP messages using the payload and WSDL. CXF and Axis provide WSDL connectors that create a dynamic proxy for the service. The WSDL URL and operation must be specified. CXF is generally recommended, but Axis may be needed if CXF has issues. Multiple arguments can be passed from the console to invoke a service and output the response.

1. WSDL CONNECTOR
INTRODUCTION

2. SOURCE: MULESOFT
 A WSDL endpoint enables you to easily invoke web
services without generating a client. At startup, it
reads the WSDL to determine how to invoke the
remote web service during runtime. When a message
is sent through the WSDL endpoint, it is able to
construct a SOAP message using the message
payload and its knowledge of the expected payload
format from the WSDL.

3. CXF
 Axis and CXF transports provide WSDL connectors
that can be used to call remote Web services by
obtaining the WSDL service. Mule creates a
dynamic proxy for the service and then invokes it.
The easiest tool to do this, however, is the Web
service consumer.

4.  YOU MUST SUPPLY THE FULL URL TO THE
SERVICE'S WSDL TO INVOKE, AND YOU MUST
SUPPLY A PARAMETER UMMETHOD THAT TELLS
MULE WHICH OPERATION TO INVOKE ON THE
SERVICE:

5. The WSDL URL is appended with the wsdl: prefix. Mule checks its class
path to see if there is a WSDL provider that it can use to create a client
proxy from the WSDL. Mule supports both Axis and CXF as WSDL
providers. If you want to use a specific one, you can specify it in the
URL as follows:
eur-lex.europa.eu eur-lex.europa.eu

6.  In general, you should use the CXF WSDL endpoint.
The only limitation of the CXF WSDL provider is that
it does not allow you to use non-Java primitives
(objects that are not a String, int, double, and so on).
Sometimes the Axis WSDL generation does not work
(incorrect namespaces are used), so you can
experiment with each to see which works best.
 Note: There are no specific transformers to define in
WSDL endpoints.

7. WSDL
 By default, the WSDL provider looks at your WSDL,
taking the endpoint address and attaching it? Wsdla
it. With CXF transport, you have the option of
specifying a location for the WSDL that is different
than the one specified with the? Wsdl parameter. This
can be useful in cases where the WSDL is not available
a normal way either because the SOAP engine does
not provide it or the provider does not want to publicly
expose the WSDL.

8.  <endpoint address="wsdl-
cxf:http://localhost:8080/book/services/BookService?
method=getBooks"> <properties> <property
name="wsdlLocation"
value="file:///c:/BookService.wsdl"/> </properties>
</endpoint>

9. EXEMPLO DO CXF WSDL ENDPOINT
 This example demonstrates how to draw multiple
arguments from the console, invoke a web service, and
print the output to the screen. It uses the Currency
Converter web service at www.webservicex.net.
 This service requires two arguments: the "from" currency
code and the "to" currency code. When the dispatcher CXF
prepares arguments for the invocation of the service, it
expects to find the message load of Object [] - that is, an
array of objects. In the case of the currency converter, this
should be an array of two objects - the "of" currency and
"the" currency.

10. XML
COMPLETO <?xml version="1.0" encoding="UTF-8"?> <mule
xmlns="http://www.mulesoft.org/schema/mule/core"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:spring="http://www.springframework.org/schema/beans"
xmlns:stdio="http://www.mulesoft.org/schema/mule/stdio"
xsi:schemaLocation=" http://www.mulesoft.org/schema/mule/core
http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/stdio
http://www.mulesoft.org/schema/mule/stdio/current/mule-stdio.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">
<stdio:connector name="stdioConnector" promptMessage="Enter from and to
currency symbols, separated by a comma:"/> <flowname="inputService">
<stdio:inbound-endpoint system="IN"/> <custom-transformer
class="org.mule.transformer.simple.StringToObjectArray"> <spring:property
name="delimiter" value=","/> </custom-transformer> <outbound-endpoint
address="wsdl-
cxf:http://www.webservicex.net/CurrencyConvertor.asmx?WSDL&method=Co
nversionRate"/> <stdio:outbound-endpoint system="OUT"/> </flow> </mule>