I have two WEB applications based on two different servers. How I can pass data from the PHP web form, which consists of 5-10 fields, to Java application(Struts2, Spring2) in the most elegant and safe way?
I think cURL should be enough, you can make HTTP(S) requests from one to the othe server.
let the PHP return a JSON object, best would be RESTfull.
let the java code make a REST call
One answer: API. That's what APIs are intended for - communication between applications.
Create endpoint in the JAVA app that acceps the data and does something with it.
In PHP after recieving the data from form make a call to the JAVA app endpoint and send the data there.
For security you may want to use some data encription using oauth (that is if you data requires that kind of security).
You have created an API which will return JSON array.
Call that API from java application and get JSON, decode JSON and use that.
Related
I have a Jersey REST webservice and it works fine with java client. Now I'm wondering is it possible to use C# or VBA to call this webservice? Sorry I am new to C#/VBA. I am trying to create a add-in for excel. As far as I know I can use these two to create add-in. So my questions are:
What's the best way to create add-in in excel for getting/uploading data? Is Java possible? Or should I use C#?
If I use C#, is it possible to call java webservice in C#? I want to upload data via this webservice.
Thanks in advance.
Anything that can build an HTTP request matching the input expected for your Jersey REST service will work. JAX-WS and JAX-RS services are going to be exposed as agnostic access points for anything which can send an XML/JMS or HTTP request. You can confirm this by simply opening the endpoint in your web browser and trying to submit some GET requests that way.
That is the beauty of web services, they SHOULD be language agnostic. Basically you are just calling a url to return you some xml/json data which c# can handle.
this is my first post on stackoverflow.
I am quite good at Java SE and client side Java Programming, but new to Java web development.
When I search for Java webframeworks, a huge amount of framework are offered, but nothing really seems to fit my needs.
What I actually want is a dumb server and a smart client.
I want the client to ask for certain information and the server to return the requested information in a xml or json format, so that the client itself manages the data.
In most cases the webframeworks render the html pages etc. on the server side, but I just want for example to use AJAX or the android xml parser to get the information and then fill the UI on the clientside.
I am not sure, if Webservices are the right thing for me, because I want to make several async requests to the server.
Or should I simply use servlets, which just return the right xml on request.
A second thing is how to handle the authorization and authentication of the users, which send the request to the webserver.
I do not want to allow everyone to receive the xml or json, which is generated by the server.
In short:
Is there a java based webframework, which can handle authorization and authentication of users and just returns xml or json to a smart client?
Which java based webframework fits best to my needs?
On the following webpage my aim is described, but unfortunately there is no hint how to implement such a "dumb" server...
http://seng130.wordpress.com/lectures-2/web-application-architecture/
You will likely need to use multiple frameworks. Spring-Security to handle your url intercept based on authority. Then use Servlet with Spring-MVC to handle the request within the Controller methods. Tutorial here: http://static.springsource.org/spring-security/site/tutorial.html You can have those methods return string values of JSON or XML. I would suggest using Jackson to convert your objects to a JSON form on the fly and the javax libraries for XML.
Example of Spring-MVC with Jackson:
http://www.mkyong.com/spring-mvc/spring-3-mvc-and-json-example/
Example with Jersey servlet and Jackson
http://www.mkyong.com/webservices/jax-rs/json-example-with-jersey-jackson/
My plan is to set up a php-based website except all the dynamic data would be loaded through a local RESTful webservice.
The local RESTful webservices would be created using Java Jersey, which will access a MySQL database. The reason behind this is because I would like all the logic to be handled by Java.
Would this perform poorly? I have created RESTful services before and created php websites but never used them together...would calling a webservice on localhost be a terrible way to set this up?
Yes and no. If you plan to extend this beyond a website, e.g. if you plan to have other applications consume your web services, then I'd say it would be an appropriate design. Otherwise, no need for the overhead.
I'm creating a Java application that uses Hunch's API, but the problem is I have no clue as to how I can use a web API in Java. Any ideas?
That depends on what the API provides, generally you'd need a web server (like Tomcat) to run a web framework.
If it's just an api to communicate with a service via HTTP (maybe webservices) then have a look at the corresponding libraries (JAX-WS etc.).
Edit: I looked up Hunch API, and assume it is this: http://hunch.com/developers/v1/
It seems like it would return JSON encoded data, so you might use the URL class to read data from an URL. That data would be a JSON string which then needs to be decoded using one of the many JSON libraries out there (e.g. JSON-simple).
I just want to implement a service in java that will:
take some arguments, then search the database
return the JSON object of the fetched data
I need help to identify the ways through which I can implement this thing.
e.g. Suppose I am getting the name of the book as argument I want to render.
On service part, I have to fetch book data and convert it to JSON and write/return to response.
I was looking at the Apache Axis2 but I am not sure that I am going in the right direction.
So, pls help.
Need guidelines not implementation.
Thanks
I would suggest using JAX-RS based services which would be ideal for your scenario as you want json data. These are pretty easy to get started with. Jersey is a widely used frameworks. Also see RESTEasy.
If you are returning the data in JSON then you probably don't need to implement a full web service, which uses XML for both the request and the response.
A normal dynamic web application (written as a Java Servlet) will be able to read request parameters in the HTTP payload and return a JSON-encoded HTTP response.
However you need to consider your clients; if they are only able to access web services then you need to forget about a JSON response and simply objectify the response. However if the clients can access web resources without issue then go with the servlet approach.
If you need to go with web services then look at the Metro 2 framework.
One way to do this is to keep it standards-based.
If you are using the JEE5/6 framework, your best bet would be to go with JAX-WS - comes built-in with the JSE too (if I remember correctly)
You really just have to annotate a POJO with #WebService to achieve this.
Regarding creating a JSON response, a good bet is to stick with the implementation from http://code.google.com/p/google-gson/ ; simple and straightforward
Axis2 can handle/support the webservice related part, iaw, transforming java objects into JSON and vice-versa and providing an easy-to-use API for the communication part.
Hibernate or JPA could be useful for database related tasks, although it might be easier to just use JDBC to send some simple SQL commands to the database (especially if the database already existst).