问题
Well I have created a web-based POS to take order. My question is how do I create a Java-Applet;
- Shows the HTML page & a Print button
- Print Order without prompting(no dialogue box)
Additional Information : It works like this. The waiter will key the orders from the computer(POS) , when they hit print, it will detect the I.P address of the printer in the kitchen,then print out the orders immediately without prompt. I am actually looking for reference/guide which can help me start on. Any Advise will be helpful as well. Thank you
回答1:
You cannot do that for security reasons. If you could, applets would already have become notorious for printing 10+ pages of 'special offers' when you visit unscrupulous web sites.
OTOH, if the client is willing to accept one prompt at applet start-up, you could digitally sign the code.
回答2:
There is a project that does HTML printing using HTML5 to render the contents to a PNG and Java to print directly, exactly as described in the original post. This project is called "qz-print" (previously called "jzebra") and it offers the digital signature in both self-signed (free) and trusted-signed (at a premium).
It also uses the signed JNLP files as Andrew Thompson has illustrated. (Thanks Andrew, your contributions to Java as a whole have been a great help to Java developers around the world).
https://code.google.com/p/jzebra/
来源：https://stackoverflow.com/questions/8440687/guide-on-creating-a-java-applet-printing-without-prompt