Join Ketkee Aryamane for an in-depth discussion in this video Expression language, part of Java EE: Servlets and JavaServer Pages (JSP).
- [Instructor] Now that we've seen JSP standard actions,…let's take a look at expression language of JSP.…So now we are constantly going towards the goal where we…minimize the Java code statements, and do everything…possible by means of a tag, an element or an expression.…And expression language is one which will allow you to…write simple expressions on JSP.…Now what can those expressions do for you?…Think about what you can do on a JSP.…JSPs, as I said, used for the display purposes,…the presentation purposes.…
So if you want to go ahead and dynamically read the data…of JavaBean components, or maybe read the data out of…any implicit objects that you have been storing it into,…that can be quickly read and displayed on a JSP with…simple expressions.…You can also invoke public methods and go ahead and…basically evaluate and print the output of those…expressions on the JSP page.…Not only this, expression language also allows you to…perform arithmetic, addition, subtraction, multiplication,…division, modulo, or for that matter relational,…
Author
Released
2/6/2018- Reviewing the purpose of servlets
- Implementing a GET request in a web app
- POST request basics
- Forwarding, redirection, and other APIs
- Servlet life cycle
- Reviewing JSP and its features
- Session management
- Filters and Listeners
- Using expression language in JSP
- Need for JSTL and its modules
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome47s
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What you should know2m 51s
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1. Overview and Setup
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Alternative setups1m 44s
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Project application setup5m 11s
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2. Servlet Basics: GET
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Types of HTTP requests1m 20s
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3. Servlet Basics: POST
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POST request basics2m 48s
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4. Forwarding, Redirection, and Other APIs
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Understanding forwarding9m 45s
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Understanding redirection3m 44s
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Using ServletConfig5m 11s
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Using ServletContext4m 19s
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5. Servlet Life Cycle
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Using the servlet life cycle7m 51s
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6. JSP Fundamentals
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JSP directives: Page8m 52s
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7. Session Management
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Using cookies11m 56s
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Using URL rewriting9m 15s
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8. Filters and Listeners
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Filters: Implement filter logic10m 15s
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Using listeners in a web app10m 51s
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9. JSP Standard Actions and Expression Language
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Expression language7m 20s
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10. JSTL and Custom Tag Library
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Core module: Displaying data11m 4s
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FMT module10m 31s
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Custom tag library5m 32s
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Custom tag: Use tag on JSP2m 40s
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Conclusion
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Next steps42s
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Video: Expression language