SOAP Web Service Tutorials - Herong's Tutorial Examples - v5.13, by Herong Yang
Using java.net.HttpURLConnection to Send SOAP Messages
This section describes steps to follow if you want to use the java.net.HttpURLConnection class to send out a SOAP XML message.
With both client side and server side testing programs ready to capture both request and response, I am ready to try to call Web services with the HttpURLConnection class in the java.net package.
The HttpURLConnection class is a higher level communication tool comparing to the Socket class. It is relatively easy to use for calling a Web service:
1. The first step is to create HttpURLConnection object with the end point URL. Remember to use the openConnection() method on a URL object create a HttpURLConnection object, because HttpURLConnection offers no constructors.
URL oURL = new URL("https://www.herongyang.com/Service"); HttpURLConnection con = (HttpURLConnection) oURL.openConnection();
2. Use the setRequestMethod() method to set the HTTP POST command:
con.setRequestMethod("POST");
3. Use the setRequestProperty() method to set header lines:
con.setRequestProperty("Content-type", "text/xml; charset=utf-8"); con.setRequestProperty("SOAPAction", "http://herongyang.com/MyService#MyMethod");
4. Prepare the entire SOAP request XML message as a string by using a DOM object, reading from a file, or simply as:
reqXML = "<?xml ...<soap:Envelope ...";
5. Then write the XML message to the connection.
OutputStream reqStream = con.getOutputStream(); reqStream.write(reqXML.getBytes());
6. Finally read the SOAP response XML message from the connection.
InputStream resStream = con.getInputStream(); byte[] byteBuf = new byte[10240]; int len = resStream.read(byteBuf);
See the next tutorial for a sample HttpURLConnection program.
Table of Contents
Introduction to SOAP (Simple Object Access Protocol)
SOAP Message Transmission and Processing
SOAP MEP (Message Exchange Patterns)
PHP SOAP Extension Client Programs
PHP SOAP Extension Server Programs
PHP SOAP Web Service Example - getTemp
Perl SOAP::Lite - SOAP Server-Client Communication Module
Perl Socket Test Program for HTTP and SOAP
Perl SOAP::Lite for NumberToWords SOAP 1.1 Web Service
Perl SOAP::Lite for SOAP 1.2 Web Services
►Java Socket and HttpURLConnection for SOAP
SocketRequestResponse.java - Socket Client Testing Program
SocketRequestResponseServer.java - Socket Server Testing Program
Capturing the HTTP Request from a Browser
"read(byteBuf) = -1" Not Working
►Using java.net.HttpURLConnection to Send SOAP Messages
Using HttpURLConnection to Call SOAP 1.1
Capturing HTTP Request Generated by the HttpURLConnection Class
Calling NumberToWords SOAP 1.1 Web Service
Using HttpURLConnection to Call SOAP 1.2
Calling NumberToWords SOAP 1.2 Web Service
SAAJ - SOAP with Attachments API for Java
SoapUI - SOAP Web Service Testing Tool
WS-Security - SOAP Message Security Extension
WS-Security X.509 Certificate Token
Perl SOAP::Lite for GetSpeech SOAP 1.1 Web Service
Perl SOAP::Lite 0.710 for SOAP 1.2 Web Services
Perl SOAP::Lite 0.710 for WSDL