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| Listing 13 - Concatenate current date and time to the parameter string. |
|---|
long theDate = new Date().getTime();
parameters = parameters + "item=" + theDate;response.setContentType("text/html");%%> |
Listing 13 also sets the output content type to "text/html" .
Finally, Listing 13 signals the end of the scriptlet that began in Listing 11 .
Create the hyperlink
Listing 14 uses a JSP expression tag along with raw HTML code to create the hyperlink shown near the top of the page in Figure 2 .
Listing 14 - Create the hyperlink.
Listing 14 also uses raw HTML code to create the line of text that appears immediately above the list of dates in Figure 2 .
Display the list of dates
Listing 15 shows another scriptlet containing pure Java code. The first six lines of code display the historical date and time information. The next line of codedisplays the current date and time.
| Listing 15 - Display the list of dates. |
|---|
<%
if(items != null){for(int i = 0; i<items.length; i++){
long millis = Long.parseLong(items[i]);
out.println("" + new Date(millis) + "<br/>");
}//end for loop}//end if
out.println("" + new Date(theDate) + "<br/>");
out.println("</body></html>");
%%> |
The last line of code creates the HTML elements necessary to finish the page.
A choice
I could have broken this scriptlet into two or more scriptlets using raw HTML code in between to display the material. However, I decided that it was simplerin this case to use Java println statements to display the material than it would have been to break it up and use interspersed HTML code.
I encourage you to copy the code from Listing 16 and Listing 17 . Install the programs on your server and run them. Experiment with the code,making changes, and observing the results of your changes. Make certain that you can explain why your changes behave as they do.
This section contains a variety of miscellaneous information.
Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.
I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version of the module.
In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.
Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.
I recognize that the code in Listing 16 may be difficult to read. Note, however that if you have difficulty reading it, you can reconstruct the entire programfrom the code fragments provided earlier. You might also try zooming with your browser to see if that makes it easier to read.
Listing 16 - The servlet named Java4560a.java.
Listing 17 - The JSP program named Java4560b.jsp.
-end-
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