Introduction to Linux

Transcript Introduction to Linux

Julien Thibault / Phil Brewster / Kristina Doing-Harris
[email protected]
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Web development includes
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Limitations of “static” HTML
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HTML only structures data (text, pictures, media) for rendering in the browser
The hosting web server just send the HTML file as is to the user
Does not natively offers ways to interface with data sources (e.g. Databases)
Dynamic web through server-side code
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web design, web content development, client liaison, client-side/server-side scripting,
web server and network security configuration, e-commerce…
A web server dynamically generates a web page based on the user request
The user’s request is processed on the server-side, and HTML is generated accordingly to
represent the response, then finally sent back to the user.
Many technologies and languages available
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Microsoft .NET, Java Server Pages
CGI, PHP, ColdFusion
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Java Servlets
 Java Classes used to process HTTP requests
 Hosted by the web server (typically Apache Tomcat)
 Good technology choice if you want to reuse existing Java libraries
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Java Server Pages (JSP)
 Java technology used to embed server-side code directly into the web page
 When the JSP pages are deployed, the server compiles them and creates the
corresponding Servlets.
 JSP example:
<html>
<head>Hello world test</head>
<body>
Hello World! <%= new java.util.Date() %>
</body>
</html>
 Server-side code is surrounded by the <% and %> tags
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Open Eclipse JEE and create a new Dynamic Web Project (e.g. helloproject)
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The project should include the following folders:
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To create a new JSP page:
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Right-click on WebContent/ -> New -> JSP file (e.g. create hello.jsp from previous slide)
To create a new Servlet
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Java Resources/src/: where you put your Java classes (including servlets)
WebContent/: where you put your web pages (html/jsp), and other web content (pictures, CSS)
WebContent/WEB-INF/lib: where you put your Java libraries (jar files)
Right-click on JavaResources/src/ folder -> New -> Servlet
To deploy your web application
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Right-click on the project folder -> Export -> WAR file
Destination: the webapps/ folder of your Apache Tomcat install (e.g. C:\Program Files\Apache
Software Foundation\Tomcat 5.5\webapps\)
 The project will be packaged into a WAR file (Web application ARchive) and deployed onto the
server
 Now you should be able to access you web app at http://localhost:8080/helloproject/hello.jsp
Connecting to CHPC
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Host: sanddunearch.chpc.utah.edu
Login: uNID
Password: uNID password
Hosting your JSP pages
1. Create a public_jsp folder in your home directory
2. Copy your web page to that folder (scp command or WinSCP)
3. Now you can access your webpage at:
http://webapps.chpc.utah.edu/~[uNID]/[page_name]
Ex: http://webapps.chpc.utah.edu/~u0668260/index.jsp
Note: if you just copy the WAR file to that folder, it might take a
few minutes to actually deploy.

Introduction to Linux

Transcript Introduction to Linux

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