Using HttpURLConnection to Call SOAP 1.2

SOAP Web Service Tutorials - Herong's Tutorial Examples

∟Java Socket and HttpURLConnection for SOAP

∟Using HttpURLConnection to Call SOAP 1.2

This section provides a tutorial example on how to use the java.net.HttpURLConnection class to call SOAP 1.2 Web services.

dataaccess.com also provides NumberToWords Web Service in SOAP 1.2 format. In order to test this, I wrote this HttpURLConnection program to call the NumberToWords SOAP 1.2 Web service:

/* HttpURLConnection12.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.io.*;
import java.net.*;
public class HttpURLConnection12 {
   public static void main(String[] args) {
      PrintStream out = System.out;

// Checking command line arguments
      if (args.length < 3) {
         out.println("Usage:");
         out.println(
            "java HttpURLConnection12 url inFile outFile");
         return;
      }
      String sURL = args[0];
      String inFile = args[1];
      String outFile = args[2];

      try {
// Reading the SOAP request message from a file
         File objFile = new File(inFile);
         int reqLen = (int) objFile.length();
         byte[] reqBytes = new byte[reqLen];
         FileInputStream inStream = new FileInputStream(objFile);
         inStream.read(reqBytes);
         inStream.close();

// Creating the HttpURLConnection object
         URL oURL = new URL(sURL);
         HttpURLConnection con 
            = (HttpURLConnection) oURL.openConnection();
         con.setRequestMethod("POST");
         con.setRequestProperty(
            "Content-type", "application/soap+xml; charset=utf-8");
         con.setDoOutput(true);
         con.setDoInput(true);

// Posting the SOAP request XML message
         OutputStream reqStream = con.getOutputStream();
         reqStream.write(reqBytes);
         reqStream.flush();

// Reading the SOAP response XML message
         byte[] byteBuf = new byte[1024];
         FileOutputStream outStream = new FileOutputStream(outFile);
         InputStream resStream = con.getInputStream();
         int resLen = 0;
         int len = resStream.read(byteBuf);
         while (len > -1) {
            resLen += len;
            outStream.write(byteBuf,0,len);
            len = resStream.read(byteBuf);
         }
         outStream.close();

         reqStream.close();
         resStream.close();

// Output counts
         out.println("Request length: "+reqLen);
         out.println("Response length: "+resLen);
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}