How to invoke existing SOAP webservice into REST API Spring boot application - java

I have a Rest Spring boot application, I need to invoke external SOAP webservice in my Rest Spring boot application - similar question asked in stackoverflow - Calling a SOAP service using REST service but didn't get any exact steps. One blog I found the solution but don't know whether it right approach or not - https://docs.oracle.com/cd/E19340-01/820-6767/aeqgc/index.html
Let me know if anyone knows the solution. Whether need to create wsdl in Spring boot rest application or directly convert the json to xml and invoke the endpoint ?

The WSDL is provided by the SOAP Web service. You can get it by visiting its WSDL endpoint url.
The idea is that once you get the WSDL , copy it to your project folder and then use some maven plugin to generate a SOAP client from the WSDL. Here is the spring official guide for how to do it.
You operate the generated client in the java object level and it will help to format the SOAP request in the correct XML format and then send out .So you do not need to manually create the XML request by yourself.

Related

Build SOAP XML Web Service that stores data to DB and response result to client

I have been assigned to build SOAP XML web service which does the following:
Listens for a SOAP request from client application that will send the values for 2 parameter(login name, product_id)
Stores the SOAP request/outbound response transaction to a SQL database table
Doing checking if login already exist or not in database. if yes, send response to client. If not, the values store in database and also response back to client
I am planning to do this JAVA.
Can anybody point me in the right direction for how this should be done? Thank you in advance for any feedback.
To build a SOAP XML web service you need web service provider and web service client. To do so there are two approaches:
Top Down
Top down is the proper way of defining rules for the web service for both client and provider. Top down means you have to create a WSDL file first in order to generate stubs out of it to create provider as well as client.
Bottom UP
Bottom is used for legacy application, to expose already existing application as a web service
Wsdl to java is a plugin used to generate stubs(classes) out of wsdl file. After creating wsdl and stubs out of it...you need to mark the pojo's with JAX-B Annotations and service methods(Your web service business logic methods) with JAX-WS Annotations. For this you could use Apache CXF JAX-WS Maven Dependency or others. After that you need to publish an Endpoint for the web service you created using bus and Endpoint class from JAX-WS.
After Exposing out the service, you can use the same wsdl to generate Client or Without creating a client you could test your web service using SOAP UI tool.
Follow this Link for more!

How to determine which type of web service(soap or rest) by looking project

I am a newbie to Java and started learning webservices,my question is how one determines whether the project is written using soap or rest ?? Can we use spring framework to write webservices ?? Can anyone Provide online resources link for real world example of each (soap and rest) to improve my understanding of those each.
You can identify by checking wsdl in the project if it has wsdl it means they are using SOAP based webservices.
Where as restful webservices is just a uri mapping in yaml files .
yes you can create a restful webservices using spring framework.
Here you can find
https://spring.io/guides/tutorials/rest/
https://dzone.com/articles/restful-web-service-1
Please check the above links

Writing Contract-First Web Service using Spring Integration

I need to create a SOAP based Web Service using Spring Integration which will process the request payload in a Service Activator and then generate and send the appropriate response.
WSDL file is in my hand along with XSDs for request and response message. So I need to create the web service using WSDL.
If anyone can provide any example or tutorial on this subject??
Looks like Spring Integration Sample on the matter gives you answers.
And some info in the Reference Manual
You need to configure Spring WS infrastructure (see its documentations).
Refer your <int-ws:inbound-gateway> to the org.springframework.ws.server.endpoint.mapping.UriEndpointMapping as defaultEndpoint.
And go ahead with other your business logic.

WSDL2JAVA for simple http get on php page?

I have to request a PHP page with 3 Parameters (e.g. www.test.com/index.php?name=mrTest&no=1&id=10001). I'm using WSDL2JAVA for other Services and am now wondering if it is possible to generate a similar Service for this case. This PHP page Returns an XML. I'm just consumer/client of the Service.
I could also make a simple request and then use JAXB to parse the XML but i would like to implement all my Services the same way.
So, does anybody has already implement a php page consumer using WSDL2JAVA?
Best regards
So from my understanding this is a simple PHP page not a SOAP service. Remember XML is just the protocol used in a SOAP service however a SOAP service consists out of a WSDL that is published describing operations and how to call those operations.
A simple PHP page even if it returns XML data is NOT a SOAP service and thus does NOT have a WSDL. You wont be able to use WSDL2JAVA for that.
This PHP page seems more like a REST type service that returns XML instead of JSON. To be honest it really sounds like a REST service.
Try using the latest SOAPUI to connect to the page and see if you can use the REST project type with this page. If it is a REST service it might have a WADL file. YOu can use the WADL2JAVA cxf utility to generate classes to you. HOwever this is a BIG might as most REST services dont use WADL's yet. See this link on CXF

Non file upload Multipart in Spring MVC

I've got a terrible SOAP WSDL, and all attempts to do a codegen with JAXB/CXF/Axis failed to generate usable code. In order to build a web service out of it, I started implementing it out of a Spring MVC Controller.
Things were OK until one of the services had to receive a SOAP/MTOM+XOP request. I tried using Commons FileUpload through org.springframework.web.multipart.commons.CommonsMultipartResolver but it returns no files. That's understandable because the MTOM attachments are not files per se. And they do not have a file name. Just a Content-ID.
Is there a way to obtain these attachments?

Categories