I have recently encountered a problem statement ,there is a legacy code using soap based web service and ant as build tool.
My task is to convert the soap based web service to rest endpoint using spring boot and then end goal is to convert to microservice.
I have seen lot of articles where spring starter project is created with spring webservice dependency and they are also generating the classes through xsd's and using annotations like payload and SOAP configuration and checking the wsdl after running the application.
Is this the right approach to convert soap to rest but in my understanding it is simply creating soap web services using spring boot.
If we expose Rest Controllers with Pojos generated and generating the response type as xml or json ,do we need to do something apart from this to achieve the goal of converting soap to rest?
Any suggestions?
I am still exploring the working solution.
So far I have created the config client and server and I am thinking how to code inside the client code to expose soap as rest service.
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I have a system (kind of aggregator) that integrates with hundreds of different SOAP services - most of them do the same business functionality, but each service having different data structure in SOAP request & very few having 2 API calls to complete one transaction.
The present service integration workflow is
create stubs from WSDL
map data to the generated stub api
setup a new endpoint to fire this api
I see this a repeated, unintelligent work & requires development effort for every new service integration.
Was there different approaches to integrate with lot many systems? Any libraries that can generate soap requests based on configurations, or I have to rely on some Java SOAP, Spring lirbaries to create custom SOAP xml request from my own configurations? I see Spring's WebServiceGatewaySupport for webservice client but requires stubs created from wsdl?
Is it wise to define soap request xml as templates for every service, generate xml with input data?
Other ways I thought was to develop each integrations as independent microservice layered under an API gateway that routes each requests to specific service. But this design approach will have hundreds of services running, consuming more resources (in case of Spring boot).
Generate stubs & deposit the jar to disk, load this jar with a classloader & use the stubs using reflection - not so simple, I believe.
Use of serverless looks promising but is not possible immediately.
I got a Spring boot REST based proxy server application with standard REST End point exposed(GET, POST,PUT and DELETE) to outside world.
Any requests coming from external world then will be routed to actual functionality internally.
Now the requirement is to expose all the API supported by my REST proxy server. As I mentioned I do not have static controller path in my code for individual APIs. So would like to get your input how to create swagger support for all the internal APIs that my proxy server support. Is there are a way I can generate swagger schema manually to mimics the controller path? Or is there any other way to solve this problem?
Thanks in advance.
I new to SOAP web service. In my project there is a requirement where I need to consume the SOAP web service in spring MVC. I tried search in google I am not getting simple example to integrate the SOAP services with spring MVC.
I have few other question as well.
What is JAXB? As per my understanding the JAXB is used for marshalling and unmarshalling the objects from service.
2.Whether I can use both restful web service and SOAP web service together in same spring mvc application?
3.What is different between Spring-WS and JAX-WS?
What is JAXB? As per my understanding the JAXB is used for marshalling
and unmarshalling the objects ?
Yes, JAXB is a framework which can be used to convert Java object into an XML file (stream) and vice versa.
Java Object to an XML file conversion is called marshalling and the opposite is unmarshalling.
This technique will be useful when two applications are exchanging the business data using XML.
2.Whether I can use both restful web service and SOAP web service together in same spring mvc application ?
Yes, you can use both together with in the same project as per your business requirements.
For example, assume that your application (project) might need some data from two external sources i.e., external system1 (assume that it exposes it's endpoints in SOAP) and
external system2 (assume that it exposes it's endpoints in REST), your application has to interact with both of those to exchange the data.
Similarly your application might need to expose few services in REST and few services in SOAP (assume that the other system can consume only SOAP), it is all about agreeing between different systems on data exchanging formats.
3.What is the difference between Spring-WS and JAX-WS ?
JAX-WS is a specification & implementation built into JDK for consuming/producing SOAP services.
Spring-WS is a Spring API for consuming/producing SOAP services.
There are two types of SOAP frameworks available for the development of projects:
Compliant to JAX-WS - like Apache CXF, Apache Axis2, etc..
Non compliant to JAX-WS - Spring-WS
You can look at here for the list of web service frameworks
I have a spring mvc application which runs correctly,now another colleague wants to call the same functions from another application but he needs REST URL of my functions.
how is it possible to provide the same functionality through spring REST?
is it just with new annotations .please provide some resource to show me how to do it.
when server has a service, only legal clients which had any contracts with server can access it. And clients can use service by the way such as: use RestTemplate to get/post request to URL of service, and clients can get data as JSON, or XML type if you have an equivalent object as this image:
Also, a service can be support as a interface, ex: google search is a service supported by google, but it's not rest service.
If you know each other URL address you can consume each other REST API from java code by using RestTemplate object.
I would advise you to go over the Spring starter guide which deals with that issue, here is the link (Consuming a RESTful Web Service):
https://spring.io/guides/gs/consuming-rest/
I want to expose project specific services as restful services(for JSON http request/response) that i exposed earlier for SOAP Request/Response type. Earlier we configured the static wsdl entries for SOAP using the
web-services:static-wsdl id="MyWsdl" location="/WEB-INF/xsd/MyWsdl.wsdl"/>
in the spring configuration files.
I need advice to know that Do we have ways to include my wadl contract files as we did for wsdl with the spring integration project or best way to expose my restful JSON service for the client.
You can simply serve it up as a static resource from the WAR. See this question/answer for howto.