Send data from one Java application to another

Question

I have to send an XML-file from one java Application to another.

Currently, it works like this: - Export to local XML-file from application 1 - Import local XML-file in application 2

Now I have to do this via web service(s). Is it possible to create a JAX-WS web service in application 1 that redirects to application 2 with the data needed?

I can send the data (object) as a serialized object, instead of a XML-file. But is this possible? And if so, how?

Both applications are written in Eclipse-Scout.

Thanks in advance.

score 0 · Accepted Answer · edited May 23 '17 at 12:15

0

webservice is simple and usefull if your two apps run on different machines.

Sending server: use a library for http (post or get)

1 only keep your file. just use an HTTP / POST. works for text an binary

2 more simple: if your datas are little text, you can use HTTP / GET (beware of special characters: you can encode them).

3 if you can put all your datas in one structure (object), just serialize it, put the result in a String, and send it.

Receiving server:

if you use tomcat, extend HttpServlet, and get by doPost or doGet

Or you can use another light http server

Or soap library (no really need).

DOPOST/DOGET

Sending server: HttpURLConnection conn= (HttpURLConnection) url.openConnection(); // etc.

Receiving server:

public class MyServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String one_parameter = request.getParameter("name_of_parameter");

See these links for more explanation:

Java - sending HTTP parameters via POST method easily

doGet and doPost in Servlets

edited May 23 '17 at 12:15

Community

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answered Dec 21 '15 at 13:19

guillaume girod-vitouchkina

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Thanks for this answer. But I don't have a lit of experience with this sort of stuff. Do you know of an example where they send a serialized object from one application to another, with automatically redirecting to the other application? – Maarten Dec 22 '15 at 07:56
I found a post where someone does exactly what I want to do. But he doesn't explain how he sends the object to the other application: http://stackoverflow.com/questions/13584646/transferring-a-java-class-between-applications-via-serialization – Maarten Dec 22 '15 at 08:41
Thanks. So instead of using php (as they do in the example you sent), I have to send a SOAP envelope by using HttpURLConnection (from the sending server)? Does this mean that I only need to build a web service (using wsdl) on the receiving server? Thanks. – Maarten Dec 22 '15 at 09:24
not at all: in the line of code I put: you only package your datas on sendind server, naming them "name_of_parameter", and you get them in receiving server/Myservlet with request.getParameter. No SOAP, no wsdl – guillaume girod-vitouchkina Dec 22 '15 at 09:30
Oh ok. But then, how would the url look like on the sending server? Since I'm not using PHP, I'm a bit confused about that part. – Maarten Dec 22 '15 at 09:36

score 0 · Answer 2 · answered Dec 21 '15 at 14:32

(A bit long for a comment)

You may want to stay away from bloated things like JAX-WS and just use a standard Servlet and JAXB or XStream for de-/serialisation.

Also, do not ever use Java (binary) deserialisation or default XStream on unauthenticated inputs/transport (e.g. HTTP or untrusted clients even with HTTPS). It always leads to remote code execution exploits that cannot be migitated without redeveloping your webservice interface. Most recent instance...

Send data from one Java application to another

2 Answers2