CraftBukkit插件编码错误

Question

我正为/heal制作一个简单的CraftBukkit Beta Build 1.7.2 R0.3 Bukkit插件。 （我是java的新手。）我在Eclipse中编程。我收到的错误是：

这是我的代码：

public boolean onCommand_heal(CommandSender sender, Command cmd, String commandLabel, String[] args){
    Player player = (Player) sender;
    if(commandLabel.equalsIgnoreCase("heal")){
        if(args.length == 0){
        player.setHealth(20);
        player.setFireTicks(0);
        player.sendMessage(ChatColor.GOLD + "You are healed!"); 
        }else if(args.length == 1){
            if(player.getServer().getPlayer(args[0]) !=null){
                Player targetPlayer = player.getServer().getPlayer(args[0]);
                targetPlayer.setHealth(20);
                player.sendMessage(ChatColor.GOLD + "Player Healed!");
            }else{
                player.sendMessage(ChatColor.RED + "PLAYER NOT ONLINE!");
            }
        }
    }
    return false;
}

Answer 1

尝试这样做：

Player targetPlayer = Bukkit.getServer().getPlayer(args[0]);
//or this:
Player targetPlayer = plugin.getServer().getPlayer(args[0]);

而不是

Player targetPlayer = player.getServer().getPlayer(args[0]);

和此相同，替换：

if(player.getServer().getPlayer(args[0]) !=null){

使用：

if(Bukkit.getServer().getPlayer(args[0]) != null){

此外，自最近的Bukkit更新以来，在设置运行状况时应始终使用floats。 setHealth(int)已弃用，已替换为setHealth(float)，因此请尝试：

targetPlayer.setHealth(20.0f);