如何从 ASP .NET 网站检测客户端上安装的 Java 运行时? [英] How can I detect the Java runtime installed on a client from an ASP .NET website?

问题描述

我有一个托管 Java 小程序的 ASP .NET 网站.Java 小程序需要 Java 运行时的 1.6 Update 11 版.

I have an ASP .NET website that hosts a Java applet. The Java applet requires version 1.6 Update 11 of the Java runtime.

如何检测客户端是否安装了适当的运行时，以便在没有安装时显示信息性消息?

How can I detect that a client has the appropriate runtime installed so that I can display an informative message if they do not?

谢谢，

卡尔.

解决方案必须独立于平台.

The solution must be platform independant.

推荐答案

此页面描述了如何使用 JavaScript 检测 Java 并列出了一些插件:http://www.pinlady.net/PluginDetect/JavaDetect.htm

This page describes how to and lists some plugins that will allow you to detect Java with JavaScript: http://www.pinlady.net/PluginDetect/JavaDetect.htm

除此之外，也试试这个片段:

Other than that, try out this snippet as well:

if (navigator.javaEnabled()) {
    //Java is enabled
}

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