实现一个怪物的创建，把lua里的设定当作初始状态传给monstor,名字为sample monstor,防御10，攻击10，生命100

1.先导入lib--luajava-1.1.jar

import org.keplerproject.luajava.LuaState;
import org.keplerproject.luajava.LuaStateFactory;

public class Load{
 LuaState luaState;
 /**
 * Constructor
 * @param fileName File name with Lua .
 */
 Load(final String fileName) {
 this.luaState = LuaStateFactory.newLuaState();

 this.luaState.openLibs();
  this.luaState.LdoFile(fileName);

 }
 /**
 * Ends the use of Lua environment.
 */
 void close() {
 this.luaState.close();
 }
 /**
 * Call a Lua inside the Lua to insert
 * data into a Java object passed as parameter
 * @param Name Name of Lua .
 * @param obj A Java object.
 */
 void run(String Name, Object obj) {
 this.luaState.getGlobal(Name);
 this.luaState.pushJavaObject(obj);
 this.luaState.call(1,0);
 }
 }

public class Monster{
 /* Info */
 protected String race;
 protected int defense;
 protected int attack;
 protected int life;
 /* */
 private Load ;
 public Monster(String race) {
 /* Loads Lua for this race.*/
 this. = new Load(race+".lua");
 /*Call Lua create .*/
 .run("create", this);
 }

public void setRace(String race) {
  this.race = race;
 }
 public String getRace() {
 return race;
 }
 public int getDefense() {
 return this.defense;
 }
 public void setDefense(int defense) {
 this.defense = defense;
 }
 public int getLife() {
 return this.life;
 }
 public void setLife(int life) {
 this.life = life;
 }
 public void setAttack(int attack) {
 this.attack = attack;
 }
 public int getAttack() {
 return this.attack;
 }
 }

monstor.lua---

create(monster)
monster:setRace("Sample Monster")
monster:setDefense(10)
monster:setAttack(10)
monster:setLife(100)
end

但总是抛出这个错误：

PANIC: unprotected error in call to Lua API (Invalid method call. No such method.)

不知为何，以后用到的时候再research.

已经查出来，原来在Monster类中少了个方法：

public void setRace(String race) {
  this.race = race;
 }

怪不得会找不到，

要在一lua文件a.lua里导入其他的lua文件b.lua，用require "b"

如果要从lua中运算后得到返回参数，则需要做一下修改：在lua文件中改成：

create(monster)
monster:setRace("Sample Monster")
monster:setDefense(10)
monster:setAttack(10)
monster:setLife(100)
return monster
end

在Load.java中的run改成如下：

void run(String Name, Object obj) {
  this.luaState.getGlobal(Name);
  this.luaState.pushJavaObject(obj);
  this.luaState.call(1, 1);// 一个参数，0个返回 
  try {
   Object object =luaState.getObjectFromUserdata(1);
  } catch (LuaException e) {
   e.printStackTrace();
  }
 }