如何为Spigot 1.13.2返回消息中的块类型

import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class MyPlugin extends JavaPlugin implements Listener {

    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    }

    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent event) {
        Block block = event.getClickedBlock();
        if (block != null) {
            Material blockType = block.getType();
            String message = "你交互的块类型是：" + blockType.toString();
            event.getPlayer().sendMessage(message);
        }
    }
}