I am having some problems developing a PHP client that will consume Java RESTful services, created in NetBeans 7.1.1.
For those who don't know: When you create a Java RESTful web-service based on MySQL database (entities), NetBeans will create, automatically, the entities class, and each entity "facade", that can be known as a service provider.
I developed a web application using Java RESTful web-service server and the Java RESTful client that consumes the web-services through Jersey & Servlets.
Now on to a planned PHP client: I already googled a lot, and what I see is: no interoperability (or i'm "the" noob), which is one of the purposes of web-services. I know how to create a RESTful web-service in PHP, and communicate with a PHP client, and the same with Java, but what I want is create the Java RESTful web-services server, and a php client.
Sorry if I said something wrong on the subject, and feel free to correct me.
If anyone could help me, giving me some ideas, code examples, explaining the "know-how", I would appreciate a lot.
This is rather an easy problem to solve. For an enterprise application, I have modeled this same solution. The Java layer has CXF restful web services mapping to a mixture of SOAP endpoints (external systems) as well as entity objects (mapped via Hibernate/IBatis). Consuming the CXF rest layer is rather simple. In PHP, I would definitely recommend using the Guzzle client.
/** USE REST SERVICES **/
$client = new Client("http://example.com/);
$locationRequest = $client->get('/someservice/rest/location/findstatebyzip.json?zip=12345');
$locationResponse = $locationRequest->send();
$locationResults = json_decode($locationResponse->getBody());
The great thing about Guzzle Client is that you aren't required to have CURL enabled/installed, it can use other transport mechanisms.
Related
In my project need to create the following architecture:
Front-End application is a web site resource that will combine HTML+React technologies.
Back-End is a java application that will be connected to Mongo DB to operate with data.
Now, in the middleware should be placed Node.js. And after reading a lot of info on the internet, I have now some confusions regarding this.
As I understand Frond-End will be routed to node.js (and now the question is it Express.js-- the same thing or it's different) which is also connected to Mongo Db and Java application(this is doing all logic).
Can someone explain me should use express.js with the integration of node.js in order to route to java server application?
If you want to use a middleware. Nodejs can help you do that in a lot of ways, you can use express.js so that you won't have to do more request/response parsing work. And when you want to connect to your java server using nodejs, you can also integrate that by calling the java server API endpoint by using some http library like axios then you can directly communicate to java server app to directly communicate to the backend mongodb.
But your Front-End application can also directly communicate through your backend java by creating a REST API. And store all your business logic in the java REST API.
I'm not completely clear on one thing and am hoping some one here will probably answer this.
I worked on an enterprise application where we had a Java app consuming services with a WSDL interface in between and a .NET application on the other side producing the services.
I have been reading RESTful webservices where jersey API is used to route a request through a jersey servlet to an URI that eventually talks to a Java class to send the data back.
I'm not able to understand the point where diverse applications like .NET and Java can talk through a REST interface and how for this particular scenario Rest is useful.How does Rest work in this case?. for SOAP there is WSDL, what about for REST assuming a Java app is consuming from a .NET through a Restful service. Please explain how it works.
Thanks in advance!
Both REST and SOAP use HTTP for communication. Requests are sent over the wire using the HTTP protocol from client to server. The server replies using the same protocol. As long as the client and the server both send information using HTTP, it doesn't matter what language the client or server are written in.
RESTful APIs may use some combination of WADL, HATEOAS, and documentation to reveal their API to clients.
I am a Java SE programmer and exploring implementing JAX-WS web services for the purpose of integrating with our web server. To this date, I have not had experience with web-services thus would like to get everyone’s expert opinion.
The background is that my company has a POS system developed and hosted in-house using Java SE. We are planning for e-commerce capabilities, which will be implemented in HTML/PHP, via external web development company and hosted externally.
Thus we are exploring implementing JAX-WS web services on our endpoint for the purpose of integrating with our e-commerce server running PHP endpoint.
I’ve done some research and my understanding is that:
it is possible to implement JAX-WS without Java EE containers
JAX-WS Web Services Without Java EE Containers
it is possible to mix end-point technologies, and specifically in my case JAX-WS as our endpoint and PHP SoapClient on our e-commerece end-point
PHP SOAP Client to consume JAX-WS with Basic Http Authentication
Using PHP SoapClient with Java JAX-WS RI (Webservice)
I am now wondering what’s is the proper approach when discussing implementation with the external web development company that is building our e-commerce platform. Most web sites and forums’ examples assumes Java on both endpoints and that both endpoints are implemented by the same developer/team.
Based on my limited understudying, I gather the process would be:
Me/my company creating the web service (coding the web services methods in Java)
Me/my company creating the server program
The wsdl generated from the URI (http://:/md5WebService?wsdl )of my server program is then used as the interface contract between our internal POS system and the external e-commerce platform
The web development company that is implementing the e-commerce platform then uses the wsdl to implement the PHP SoapClient endpoint on their side.
And in the case where our internal POS system need to consume a web services created by the external web development company, they will pass me the wsdl and I use that to make the call to them.
Is this the correct way to do proceed?
Many thanks.
Cheers,
Arthur
In Java you have actually two ways to start your design of your web service. You can either create the WSDL (Web Service Description Language) contract first (contract first approach) and then let Java or some framework tools create Java skeleton classes for you which you can use to implement the logic of each operation or you can start by code first approach and implement each web method and its logic and then let Java or some external framework tools generate the WSDL contract for you.
Either way you start, the result should be very similar and platform independent. The standard message format used for WSDL based web services is SOAP (Simple Object Access Protocol) which is based on XML (eXtensible Markup Language) which is by definition platform and programming language neutral.
So, after implementing your service and starting a server for the WS endpoint adding ?wsdl to the end of the endpoint URL should return the WSDL contract to the invoker, which can be used to create client side stubs for the required programming language which furthermore simplify the sending and receiving of messages from and to the web service. Note however that creating stub files might not be needed as all the information may be parsed from the WSDL contract directly. As of lack of knowledge concerning PHP I can't give details on how to call a WS from PHP directly or if stub file creation is required/recommended.
In order to call an other WS from your service you need to create a WS client within one of your web methods and invoke one or more of the operations offered by the remote WS and process the response within your web method.
As I am not sure if you are using any (Java) frameworks like f.e. Apache CXF I am not giving any code examples here. For integrating external web services within your service you might also have a look at Apache Camel which offers integration support for numerous Java based frameworks including CXF. Here your web service is treated as a Consumer while other external services you need to invoke are handled as Producers. The interaction between your internal and the external services is modeled here within a route where you can apply various Enterprise Integration Patterns (EIP) like splitting multiple elements contained within a response into distinct objects which you furthermore can process in parallel.
In general your enumeration of steps involved does look right if you follow the code first approach but as mentioned earlier you can also start by defining your contract first. Depending on your knowledge of the WSDL/XSD syntax (the less you know the exact syntax the more you should use code first approach), crating the contract first might enable PHP side integration sooner while you still develop the internal logic of your implementation.
it is possible to mix end-point technologies, and specifically in my case JAX-WS as our endpoint and PHP SoapClient on our e-commerece end-point PHP SOAP Client to consume JAX-WS with Basic Http Authentication Using PHP SoapClient with Java JAX-WS RI (Webservice)
This is the exact purpose of introducing webservice concept. You don't have to worry about on which platform or language your client and server is implemented. Client and server will simply exchange xml messages (platform independent) as agreed upon within wsdl.
Go ahead with your understanding.
I am developing a php based application which has java as middleware for web services. Is there any frameowork/middleware available in php stack which allows me to write services in php and also hosted on php based app server, lets say Zend?
Thanks
Typically I'd expect the middleware to be the webservices - are you consuming or providing webservices using PHP?
Not that it makes much difference, PHP supports both.
You can roll your own solution, or use PHP Soap, the nuSoap PHP lib and xmlrpc. There's also the php/java bridge which implements a socket based abstraction for both ends (but obviously this is not strictly a web service).
I am new in this area and I want to know how could I develop such an application. I already have a developed application in java (the business logic) and I would want to link this with a
web application in ASP.Net (application client). I know that I must use a web service but which type should I use a java web service or a .Net web service.
I dont know how to make this connection between the .net and java, could anyone help me please? Is this possible through the web service? Any action of the user would then be transmitted to the java application...and if this is the case how it is done? Any example or tutorial might be hepfull....
Thank you in advance
If you write a SOAP web service, it doesn't matter whether you use Java or .NET. The client is exchanging SOAP XML messages over HTTP; the language that the service is written in does not come into play.
Same would be true of REST if you did it properly.