JSP container

If the value of the url attribute starts with a forward slash, however, it is interpreted as an absolute URL within the local JSP container.

The configurability of the JSP translation framework enables the JSP container to be modified more quickly in response to new requirements.

The JSP container will implicitly declare one for you and make it available through the out variable.

The JSP container then compiles the JSP into a servlet and executes it, to create HTML.

Action, allows data to be stored and retrieved from four different scopes within the JSP container.

When the JSP container has determined that the JSP page's syntax is valid, it enters the next phase of processing: code generation.

The JSP container ensures that the syntax of the JSP page is correct, and generates informative error messages when it encounters errors.

When the JSP container has finished generating the . java file, it enters the next phase of processing: Java code compilation.

The JSP container evaluates each custom tag during the execution of a JSP page that references it.

The JSP container needs to discover the name of the class that implements the out tag.

In previous versions of WebSphere Application Server, the JSP container's run time processor was implemented as a gateway servlet.

The JSP container looks for character sequences that it recognizes; sequences that indicate there's some syntax that it needs to process.

The JSP 2. 0 specification does not make a distinction between a JSP container and a Web container.

The JSP container recognizes this situation and halts validation with an error message.

The actual HTML code the JSP container sends to the Web browser in one execution is shown in Listing 2.

How does the JSP container know which attributes of a custom tag are required and which are not?

An element is an instance of an element type known to the JSP container.

The JSP container will generate a tag handler class, which will have setter methods for all three attributes: expr, value, and type.

The EL retrieves data from the JSP container, traverses object hierarchies, and performs simple operations on the results.

If the value attribute and its value aren't present then the JSP container generates an error.

When the page is executed, the JSP container creates instances of the tag handlers and calls their methods.

A JSP container handles scriptlets, expressions, and declarations each in a different way.

Remember that the JSP container is parsing the page character by character.

In the translation phase, a JSP page is processed by the JSP container.

To validate that a JSP page's syntax is correct, the JSP container reads the page character by character, parsing the page's contents.

The JSP specification doesn't mandate that a JSP container retranslate and reload a JSP when it is modified in a running Web application.

If the JSP container detects a cookie storing the user's current session ID, no rewriting is necessary.

Here's what the JSP container reads and analyzes to know what attributes are valid in the out tag.

For example, if another jsp: useBean tag in this JSP page also used "nameBean" as an ID, then the JSP container would generate an error.

For example, the simple JSP file that contains only "Hi there! " doesn't have any text sequences that a JSP container needs to process.

The WebSphere JSP container is involved in the request phase in two ways

The JSP container passes the tag body to the method