你能在Chrome上运行Java吗?JNLP.

Question

我正在制作一个网站，我需要有一个VNC查看器。我已经使用Tight VNC，他们有一个Java查看器。此代码可以作为小程序运行，但Chrome和Firefox等现代浏览器不允许使用小程序。有没有另一种方法可以在Chrome上运行Java代码？

我读过一些浏览器支持Java Web Start，但我不认为Chrome支持。如果 Chrome 确实如此，任何人都可以帮助我将这个小程序转换为 JNLP 文件吗？

<applet archive="tightvnc-jviewer.jar"
    code="com.glavsoft.viewer.Viewer"
    width="1" height="1">
    <param name="Host" value="localhost"/>
    <!-- Host to connect. Default:  the host from which the applet was loaded. -->
    <param name="Port" value="5900"/>
    <!-- Port number to connect. Default: 5900 -->
    <!--param name="Password" value="" /--> <!-- Password to the server (not recommended to use this parameter here) -->
    <param name="OpenNewWindow" value="yes"/>
    <!-- yes/true or no/false. Default: yes/true -->
    <param name="ShowControls" value="yes"/>
    <!-- yes/true or no/false. Default: yes/true -->
    <param name="ViewOnly" value="no"/>
    <!-- yes/true or no/false. Default: no/false -->
    <param name="AllowClipboardTransfer" value="yes"/>
    <!-- yes/true or no/false. Default: yes/true -->
    <param name="RemoteCharset" value="standard"/>
    <!-- Charset encoding is used on remote system. Use this option to specify character encoding will be used for encoding clipboard text content to. Default value (when parameter is empty): local system default character encoding. Set the value to 'standard' for using 'Latin-1' charset which is only specified by rfb standard for clipboard transfers. -->
    <param name="ShareDesktop" value="yes"/>
    <!-- yes/true or no/false. Default: yes/true -->
    <param name="AllowCopyRect" value="yes"/>
    <!-- yes/true or no/false. Default: yes/true -->
    <param name="Encoding" value="Tight"/>
    <!-- Possible values: "Tight", "Hextile", "ZRLE", and "Raw". Default: Tight -->
    <param name="CompressionLevel" value=""/>
    <!-- 1-9 or empty. Empty means server default -->
    <param name="JpegImageQuality" value=""/>
    <!-- 1-9, Lossless or empty. When param is set to "Lossless" no jpeg compression used. Empty means server default -->
    <param name="LocalPointer" value="On"/>
    <!-- Possible values: on/yes/true (draw pointer locally), off/no/false (let server draw pointer), hide). Default: "On"-->
    <param name="ConvertToASCII" value="no"/>
    <!-- Whether to convert keyboard input to ASCII ignoring locale. Possible values: yes/true, no/false). Default: "No"-->
    <param name="Tunneling" value="auto"/>
    <!-- Tunneling. Possible values:
    auto - allow viewer to choose tunneling mode,
    none/no - no tunneling use,
    SSL - choose SSL tunneling when available.
    Default: "auto" -->
    <param name="colorDepth" value=""/>
    <!-- Reserved for future. Possible values: 6, 8, 16, 24, 32 (equals to 24). Only 24/32 is supported now -->
    <param name="ScalingFactor" value="100"/>
    <!-- Scale local representation of the remote desktop on startup. Default is 100 means 100% -->
    <!--param name="showConnectionDialog" value="yes" /-->
    <!-- Set to "No" if you want not to show initial connection dialog. Default: "Yes". -->
    <param name="AppletGoodbyeURL" value="about:blank"/>
    <!-- URL to be redirected on applet stopping. When blank or absent stop applet and do nothing. -->
    <!-- SSH tunneling options -->
    <param name="sshHost" value=""/>
    <!-- SSH host name. -->
    <param name="sshUser" value=""/>
    <!-- SSH port number. When empty, standard SSH port number (22) is used -->
    <param name="sshPort" value=""/>
    <!-- SSH user name. -->
</applet>

如果您想要.jar文件，可以在 http://www.tightvnc.com/download.php 下载

如果无法从Chrome运行Java，我有没有办法创建一个链接，将用户打开到Internet Explorer中的该页面？

Answer 1

Chrome和Firefox不久前放弃了对Java的支持。Edge一开始就不支持它。您可以从每个浏览器打开.jnlp文件(请参阅此处的示例(，但这就像打开从Internet某处下载的任何可执行文件一样。查看上面的示例，看看它在每个浏览器中的行为方式。

如果无法从Chrome运行Java，我有没有办法创建一个链接，将用户打开到Internet Explorer中的该页面？

不，您无法切换浏览器。这将是一个很大的安全风险，你会在macOS或Linux上做什么？

关于迁移到webstart*racle在这里和这里提供了一些支持。

Answer 2

Chrome 和 Firefox 都不支持 Java 小程序。您必须切换到 HTML5 或 Flash。