This question already has an answer here:
Collect and save submitted values of multiple dynamic HTML inputs back in servlet
(1 answer)
Closed 3 years ago.
How to pass a list from jsp to servlet? I want to add the dianomic field in my JSP and insert it through a servlet.
Use session.setAttribute(String name, Object value) within the JSP, then retrieve it using session.getAttribute(String name) in the servlet.
Related
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how to extract text outside tags xml
(2 answers)
Closed 5 years ago.
<span>
<a></a>
Hello
<div>A very lot of unnecessary text</div>
</span>
So I want to extract the "Hello" from the web page. I can select the span via XPath, but if I call .getTextContent() on it I also get what's in the div, but I want this unnecessary text not to be extracted. How can I do that?
You should be able to use xpath to get the text directly as shown in the answer to this link
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How to print a JTable object in the Java application
(3 answers)
Closed 6 years ago.
I have a JTable in my application which I need to print. The printed page should contain only the table and some text above and below the table. So I ask what is easiest way to do this?
Do I need to create some kind of document, and then import the table in document and add the text, and then print the document?
well you have to go row by row and print it out
This question already has answers here:
How to display an image in jsp?
(2 answers)
Closed 7 years ago.
I am stored an image in postgres sql as bytea[] field.That is in byte format.I want to view the perfect image into my jsp page after storing the image.Please, point me to the solution or some ways to achieve this requirement.
Covert your image to Base64:
String imageBase64 = new String(Base64.getEncoder().encode(imageByteArray))
Note that Base64 class is coming from java.util package. If you not using JDK 8 you can easily find an alternative to do that.
Then in your JSP page:
<img src="data:image/png;base64,${imageBase64}" />
This question already has answers here:
How to retrieve and display images from a database in a JSP page?
(6 answers)
Closed 7 years ago.
What method should I use to retrieve and display my image which is store in mysql with the datatype longblob. As for string I simply use
(Example: rs.getString("foodname"))
but waht is the datatype to use for the image as I declare it as object in java class. So should i use ?
rs.getObject("image")
Thank you
Basically you need to get it as blob and convert this binary data to image see this example
This question already has answers here:
iText 5 header and footer
(2 answers)
Closed 9 years ago.
I'm generating PDF's with the iText java lib, how can I add a static container to the bottom of my page? I want to use it for a signature, it must be on every page if there are more than one page, always it the bottom left corner?
Kind Regards
Use PdfPageEventHelper.onEndPage() to add content to every page, as described in this example.