GF and RS, Dept of CS, Mangalore University

GF and RS, Dept of CS, Mangalore University
Web Services (Part 2) CSE 465: Web Technologies Raveeshwara S GF and RS, Dept of CS, Mangalore University

Web Services - CSE 405 Web Technologies
What’s Up? SOAP/XML & RESTful Memory Test Java Programming! Implementing a Web Service in Netbeans IDE Using Web Service Web Services - CSE 405 Web Technologies

Web Services - CSE 405 Web Technologies

Java Programming Platform Independent Object Oriented Programming Language Class Object Properties Methods Example Class: Dog Object: myDog Property: name=mothi Methods: eat(food), bark(), jump() Web Services - CSE 405 Web Technologies

Java Programming Compiling Java Program Human readable (source code)  byte code instructions Using Java Development Kit Java Compiler tool javac E.g.: javac MyProgram.java Running Java Program Executing byte code instruction Using Java Runtime Environment virtual machine java E.g.: java MyProgram Web Services - CSE 405 Web Technologies

Web Service - Glossary WSDL - Web Services Description Language SOAP - Simple Object Access Protocol REST - Representational state transfer JAX-RPC - Java API for XML-based RPC JAX-WS - Java API for XML Web Services JAX-RS - Java API for RESTful Web Services XML - Extensible Markup Language JSON - JavaScript Object Notation UDDI - Universal Discovery, Description, and Integration Web Services - CSE 405 Web Technologies

XML eXtensible Mark-up Language Language Used for information exchange, storage; defines data format Mark-up Marked data with tags e.g.: <book>…</book> eXtensible You can create your own tags In depth: refer unit-3 Web Services - CSE 405 Web Technologies

XML - Example <?xml version="1.0" encoding="UTF-8"?> <note> <to> Tove </to> <from> Jani </from> <heading> Reminder </heading> <body> Don't forget me this weekend! </body> </note> Reference: w3schools.com Web Services - CSE 405 Web Technologies

UDDI Universal Discovery, Description, and Integration Worldwide registry of web services Open, platform independent, XML based UDDI can communicate via protocols such as SOAP Uses WSDL to describe web services References: Web Services - CSE 405 Web Technologies

WSDL Web Services Description Language (WSDL 2.0) Earlier, Web Service Definition Language (WSDL 1.1) Provides machine readable description of a Web Service Descriptions How a service can be called? What parameters it expects? What data structures it returns? Example (see next section – Creating Web Services) Reference: Wikipedia Web Services - CSE 405 Web Technologies

SOAP Simple Object Access Protocol What is it? A protocol specification for exchanging structured information in the implementation of web services Purpose To induce extensibility, neutrality and independence What it does? SOAP allows clients to invoke web services and receive responses It is XML based Example (see next section – Creating Web Services) Reference: Wikipedia Web Services - CSE 405 Web Technologies

Creating Web Services with NetBeans IDE
Prerequisites Java Development Kit (JDK) NetBeans IDE Web Services - CSE 405 Web Technologies

NetBeans IDE Web Services - CSE 405 Web Technologies

NetBeans IDE: Creating Web Service

Creating Web Service with Web Project
1 2 Web Services - CSE 405 Web Technologies

Netbeans IDE 2 1 3 Web Services - CSE 405 Web Technologies

1 Web Services - CSE 405 Web Technologies

1 2 3 Web Services - CSE 405 Web Technologies

Understanding Web Service Operation

Understanding Web Service Operation
Parameters Operations Web Service Power Service Hello Name Power (HW*) N Add A, B Web Services - CSE 405 Web Technologies

Testing / Using Web Service

Looking at WSDL NetBeans IDE Web Services - CSE 405 Web Technologies

Testing / Using Web Service

SOAP Request and Response

SOAP Request/Response Structure

Adding an Operation NetBeans IDE Web Services - CSE 405 Web Technologies

1 2 3 Web Services - CSE 405 Web Technologies

Testing the Operation NetBeans IDE Web Services - CSE 405 Web Technologies

Summary XML, UDDI, SOAP, WSDL Java – OOP (Objects, Properties and Methods) Developing Web Service with NetBeans IDE Using and Testing Web Service Web Services - CSE 405 Web Technologies

Today’s Web Service REST (representational state transfer) RESTful APIs Web API Web Services - CSE 405 Web Technologies

Thank You! Introduction to Web Services Presentation by Raveeshwara S, Dept. of CS, Mangalore University Web Services - CSE 405 Web Technologies

GF and RS, Dept of CS, Mangalore University

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