Java 类使用反射扩展另一个类 (bukkit)

Question

我正在尝试为我的 bukkit 插件制作 Anvil GUI。我正在尝试使我的代码跨版本兼容。但是FakeAnvil类需要扩展ContainerAnvil类，而这个类在NMS包中……有什么办法可以用反射扩展类吗？

这是我的代码：

package me.raymondliu1;

import java.lang.reflect.Constructor;
import org.bukkit.Bukkit;
//These five import is making the plugin not cross-version compatible
import net.minecraft.server.v1_8_R1.BlockPosition;
import net.minecraft.server.v1_8_R1.ContainerAnvil;
import net.minecraft.server.v1_8_R1.EntityHuman;
import net.minecraft.server.v1_8_R1.PlayerInventory;
import net.minecraft.server.v1_8_R1.World;


//problem 1
public final class FakeAnvil extends ContainerAnvil {
static Class<?> entityHumanClass;
static Class<?> BlockPositionClass;
static Class<?> ContainerAnvilClass;
static Constructor<?> bpc;
static Constructor<?> cac;
static{
    try {
        entityHumanClass = getNMSClass("EntityHuman");
        BlockPositionClass = getNMSClass("BlockPosition");
        ContainerAnvilClass = getNMSClass("ContainerAnvil");
        cac = ContainerAnvilClass.getConstructor(PlayerInventory.class,World.class,BlockPositionClass,entityHumanClass);
        bpc = BlockPositionClass.getConstructor(int.class,int.class,int.class);

    } catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) {
        e.printStackTrace();
    }
}
private static Class<?> getNMSClass(String nmsClassString) throws ClassNotFoundException {
    String version = Bukkit.getServer().getClass().getPackage().getName().replace(".", ",").split(",")[3] + ".";
    String name = "net.minecraft.server." + version + nmsClassString;
    Class<?> nmsClass = Class.forName(name);
    return nmsClass;
}
public FakeAnvil(Object entityHuman) throws Exception {
    //Problem 2
    super((PlayerInventory)entityHumanClass.getField("inventory").get(entityHuman), (World)entityHumanClass.getField("inventory").get("world"), (BlockPosition)bpc.newInstance(0,0,0), (EntityHuman)entityHuman);

}
@Override
public boolean a(EntityHuman entityHuman) {    
    return true;
}
}

Answer 1

很遗憾，您不能使用反射使一个类从另一个类或接口继承。

但是，您可以修改 NMS 包中的内容（不推荐）并使用它来代替。