Question

How to pass parameters from C#/.Net Windows Application to Java Servlet? One more thing to add here is that we cant touch the Java Servlet code.

Answer 1

I assume that your java servlet is deployed in some container like Tomcat server. The easiest way to pass parameter to any web application is through query string.

Assuming that

• Servlet is deployed on a tomcat server (or any other container)
• The tomcat server is running on machine say mymachine and listening to port 8080

• The servlet is accessible via the following URL

  http://mymachine:8080/myapp/myservlet

Now to pass parameter (say param1 and param2) to it you can invoke following URL

http://mymachine:8080/myapp/myservlet?parame1=value1&param2=value2

Use the following C# code to invoke this servlet

HttpWebRequest  request  = (HttpWebRequest)
WebRequest.Create("http://mymachine:8080/myapp/myservlet?parame1=value1&param2=value2");

// execute the request
HttpWebResponse response = (HttpWebResponse)
request.GetResponse();