java 如何通过代码关闭java Applet
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How to close java Applet through code
提问by Rashmi
I am developing a java applet. I want it to be closed by the code. I have used System.Exit(0)but it is not working. Is there any other method to achieve this?
我正在开发一个java小程序。我希望它被代码关闭。我用过System.Exit(0)但它不起作用。有没有其他方法可以实现这一目标？
Thanks
谢谢
回答by Andrew Thompson
applet.getAppletContext().showDocument("ThanksForUsingOurApplet.html");
As to the comment that a signed applet can call System.exit(n).
至于签名小程序可以调用的注释System.exit(n)。
It can in some browser/JRE combos., it can't in others. In the ones that it can, it shouldn'tsince an applet may share a VM with other applets (less common these days), and even if not, it is the user's responsibility to close an applet by closing the page.
它可以在某些浏览器/JRE 组合中使用，而在其他浏览器中则不能。在它可以的情况下，它不应该，因为小程序可能与其他小程序共享一个 VM（现在不太常见），即使不是，用户也有责任通过关闭页面来关闭小程序。
An applet is a guest in a web page. Calling System.exit(n)is like burning down the guest house.
小程序是网页中的访客。打电话System.exit(n)就像烧了宾馆。
回答by Mudassir
An applet cannot call System.exit(int);. Security permissions don't let an applet do this.
And if you are trying to close the browser window, even if you signed the code and the browser/user trusted you, the browser wouldn't let you shutdown/close the browser window.
小程序不能调用System.exit(int);. 安全权限不允许小程序这样做。如果您尝试关闭浏览器窗口，即使您签署了代码并且浏览器/用户信任您，浏览器也不会让您关闭/关闭浏览器窗口。
If all you want to do is close a Window/Frame created from the applet, this is no different than closing a window outside of an applet.
如果您只想关闭从小程序创建的窗口/框架，这与关闭小程序外部的窗口没有什么不同。
回答by Heo ??t Hades
Try to remove java applet code by javascript. Example your html:
尝试通过 javascript 删除 java applet 代码。以你的 html 为例：
<button onclick="clickButton()">Click me</button>
<div id="appletCode">
<applet width="200" height="200" archive="ImageIconApplet.jar"
code="com.whitefang34.ImageIconApplet" name="test"/>
</div>
your javascript code:
你的 javascript 代码：
function clickButton(){
var SS = document.getElementById("appletCode");
SS.innerHTML = "";
}
回答by Bhavik Mehta
As said above,exiting applet is simple by adding System.exit(0) in if(condition) for which you want to close the applet.Though I am describing of applet viewer.But,it certainly works fine.
如上所述，通过在要关闭小程序的 if(condition) 中添加 System.exit(0) 来退出小程序很简单。虽然我描述的是小程序查看器。但是，它确实可以正常工作。
