Hello world?

Every scripting experience has to start with Hello World, so I decided to create a command '/hello' which sends the sender a message with 'Hello World!' in it. Well, I try to get it to work, but it doesn't. Nothing works yet, the server log says I issue the command /hello, but there is no output at all. What is the problem with my code? Thanks a lot!

HelloWorld.java

Code:

package me.HelloWorld;
 
import java.util.logging.Logger;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.plugin.java.JavaPlugin;
 
public class HelloWorld extends JavaPlugin
{
    Logger log = Logger.getLogger("Minecraft");
 
    public void onEnable()
    {
        log.info("Your plugin has been enabled!");
    }
 
    public void onDisable()
    {
        log.info("Your plugin has been disabled.");
    }
 
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args)
    {
        if (cmd.getName().equalsIgnoreCase("hello"))
        {
            sender.sendMessage("Hello World!");
            return true;
        }
        return false;
    }
}

Plugin.yml

Code:

name: Hello World
main: me.HelloWorld.HelloWorld
version: 0.1
commands:
    hello:
        description: Hello World command
        permission: HelloWorld.hello
        usage: /<command>

 

Try changing cmd.getName() to commandLabel

 

cmd.getName() should be fine, but using the above method can be tried as well. Anyway, as a player, did you have the permission?
and in the console you don't need the '/' in front of the command.

 

Try removing the permission first. cmd.getName() should work perfectly fine.

 

Remove the permission.
If adding Permission you must do:

Code:

if(p.hasPermission("blah.yeah")){
//Do stuff
}

 

I removed the permission and changed cmd.getCommand() into commandLabel, but it still doesn't work. Is there a setting I need to change? Like if there is some 'plugins: true' setting?

My code right now.

Code:

package me.HelloWorld;

import java.util.logging.Logger;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.plugin.java.JavaPlugin;

public class HelloWorld extends JavaPlugin
{
    Logger log = Logger.getLogger("Minecraft");
    
    public void onEnable()
    {
        log.info("Your plugin has been enabled!");
    }
    
    public void onDisable()
    {
        log.info("Your plugin has been disabled.");
    }
    
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args)
    {
        if (commandLabel.equalsIgnoreCase("hello"))
        {
            sender.sendMessage("Hello World!");
            return true;
        }
        return false; 
    }
}

Code:

name: Hello World
main: me.HelloWorld.HelloWorld
version: 0.1
commands:
    hello:
        description: Hello World command
        permission:
        usage: /<command>

 

Try without the permission alltogether:

Code:

name: Hello World
main: me.HelloWorld.HelloWorld
version: 0.1
commands:
    hello:
        description: Hello World Command
        usage: /<command>

 

Also not working, wouldn't there be a critical step in installing bukkit on my localhost to enable plugins?

 

Plugins are loaded by bukkit, no setting. Just have it in the plugins folder and bukkit will try to load it. Only other suggestion I can make is to try this:

Code:java

 
String cmd = args[0].toString();
if(cmd.equalsIgnoreCase("hello")) {
         sender.sendMessage("Hello World!");
         return true;
}
 

 

Make sure your YML has correct Spacing.

 

I don't know... no one think this...

You need to register the command.

onEnable():

getServer().getPluginCommand("command").setExecutor("class");

For example:

getServer().getPluginCommand("hello").setExecutor(this);

You can use 'this' if the command is in the same class as onEnable.

 

if (commandLabel.equalsIgnoreCase("/hello"))
try this ^^^^
Could you upload the .jar for download so I could look at the EXACT code and spacing and everything?
In the console (server) are there any errors given when you try /hello?
If so what are the errors.

 

You don't have to do that if you're handling commands in your main JavaPlugin class.

Are you sure your plugin is loading at all? If you type /plugins, does your plugin show up?

 

HelloWorld.java

Code:

package me.HelloWorld;
 
import java.util.logging.Logger;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.plugin.java.JavaPlugin;
 
public class HelloWorld extends JavaPlugin
{
    Logger log = Logger.getLogger("Minecraft");
 
    public void onEnable()
    {
        log.info("Your plugin has been enabled!");
    }
 
    public void onDisable()
    {
        log.info("Your plugin has been disabled.");
    }
 
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args)
    {
        if (cmd.getName().equalsIgnoreCase("hello") && sender.hasPermission("HelloWorld.hello")
        {
            sender.sendMessage("Hello World!");
            return true;
        }
        return false;
    }
}

Plugin.yml

Code:

name: Hello World
main: me.HelloWorld.HelloWorld
version: 0.1
commands:
    hello:
        description: Hello World command
        usage: /<command>
permissions:
    HelloWorld.hello:
        description: This is a description
        default: <who gets this by default>

that should work try that

 

What is het probleem? Wat krijg je te zien als het fout gaat en wat gebeurd er?

 

I tried to test my server with another plugin, I chose the Antihunger plugin, but when I use commands of this plugin it doesn't show up anything. I think the problem is not with the coding, but with the plugin loading. What could cause this? Thanks for helping!