69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
Back to the [[step_1.wiki|step 1]]
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or go to [[step_3.wiki|step 3]]
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----
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= Tutorial Step 2 =
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* '''Goal''': Build a simple Hello World application
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* '''Requirements''':
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** know how to compile with Eiffel (EiffelStudio).
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** [[step_1.wiki|Previous step]] completed
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== "hello" project ==
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* using the "wsf" library:
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** It provides service, request, response, ...
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* using the "default_standalone" library
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** This is used to build the application in a portable manner, but for this compilation, it uses the standalone web server as connector.
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** We use that standalone connection this tutorial, because there is no need to configure any apache, iis, and so on. And it is convenient to execute with EiffelStudio debugger.
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* To see the result, you should open http://localhost/ on your web browser. Note if the application is using another port such as 9999, you should open http://localhost:9999/
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* You will find inside [[step_2]] the "hello" project
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** target "hello" provides a very simple implementation (But by default, it is using port 80 with standalone web server, which might already be busy by other application)
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** target "hello_custom" which uses almost the same code, but in addition, you can use the ewf.ini file to precise the port number (9999 for this example)
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* To see the result, open http://localhost/ in a web browser.
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* Note, if the application is using port different from 80, such as 9999, open http://localhost:9999/
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* Eiffel code
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class
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HELLO_APPLICATION
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inherit
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WSF_DEFAULT_SERVICE [HELLO_EXECUTION]
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create
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make_and_launch
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end
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class
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HELLO_EXECUTION
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inherit
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WSF_EXECUTION
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create
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make
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feature -- Execution
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execute
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local
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msg: WSF_PAGE_RESPONSE
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do
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create msg.make_with_body ("Hello World")
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response.send (msg)
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end
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end
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Note: we could also declare the root class as being "WSF_DEFAULT_SERVICE [HELLO_EXECUTION]" to avoid this HELLO_APPLICATION class.
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----
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Back to the [[step_1.wiki|step 1]]
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or go to [[step_3.wiki|step 3]]
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