我试图从下面的教程中为ssh构建一个演示鳄梨酱应用程序。
http://guac-dev.org/doc/gug/writing-you-own-guacamole-app.html
只要值是硬编码的,这个应用程序就可以正常工作。但是我需要从用户那里获得主机名/IP。为了实现这一点,我尝试在以下代码中使用request.getParameter():
package org.glyptodon.guacamole.net.example;
import javax.servlet.http.HttpServletRequest;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.net.GuacamoleSocket;
import org.glyptodon.guacamole.net.GuacamoleTunnel;
import org.glyptodon.guacamole.net.InetGuacamoleSocket;
import org.glyptodon.guacamole.net.SimpleGuacamoleTunnel;
import org.glyptodon.guacamole.protocol.ConfiguredGuacamoleSocket;
import org.glyptodon.guacamole.protocol.GuacamoleConfiguration;
import org.glyptodon.guacamole.servlet.GuacamoleHTTPTunnelServlet;
public class TutorialGuacamoleTunnelServlet
extends GuacamoleHTTPTunnelServlet {
@Override
protected GuacamoleTunnel doConnect(HttpServletRequest request)
throws GuacamoleException {
// Create our configuration
String hostname = request.getParameter("hostname");
GuacamoleConfiguration config = new GuacamoleConfiguration();
config.setProtocol("ssh");
config.setParameter("hostname", hostname);
config.setParameter("port", "22");
// Connect to guacd - everything is hard-coded here.
GuacamoleSocket socket = new ConfiguredGuacamoleSocket(
new InetGuacamoleSocket("localhost", 4822),
config
);
// Return a new tunnel which uses the connected socket
return new SimpleGuacamoleTunnel(socket);
}
}
但是当我尝试像localhost:8080/guacamole-tutorial-0.9.9那样使用它时?hostname=localhost,它不起作用。然而,如果我对相同的值进行硬编码,它就可以正常工作。请帮帮我。
您需要使用JavaScript将这些参数传递给Guacamole.Client的connect()函数
<script type="text/javascript">
// Get display div from document
var display = document.getElementById("display");
// Instantiate client, using an HTTP tunnel for communications.
var guac = new Guacamole.Client(
new Guacamole.HTTPTunnel("tunnel")
);
// Add client to display div
display.appendChild(guac.getDisplay().getElement());
// Error handler
guac.onerror = function(error) {
alert(error);
console.log(error);
};
// Connect
guac.connect('ip=192.168.99.100&user=root');** set parameters here**
// Disconnect on close
window.onunload = function() {
guac.disconnect();
}
</script>
和在你的教程GuacamoleTunnelServlet访问这些
config.setProtocol("ssh");
config.setParameter("hostname", request.getParameter("ip"));
config.setParameter("username", request.getParameter("user"));