package springroad.demo.chap5.aspectj;

public class Soldier {
private String name;
private int health=100;
private int damage=10;
private int x=10;
private int y=10;
public boolean attack(Soldier target){
 boolean ret=false;
 if(!target.dodge())
 {
  target.setHealth(target.getHealth()-this.damage);
  ret=true;
 }
 move();
 treat(); 
 return ret;
}
public void move()
{
 this.x+=getRandom(5);
 this.y+=getRandom(5);
}
//躲避x及y随机变动，成功率为50%
public boolean dodge()
{
 return getRandom(10)%2==0;
}
//治疗，具有一定成功的机会，可以提高生命值0-20点
public void treat()
{
 if(canTreat())
  this.health+=getRandom(20);
}
public boolean canTreat()
{
 return getRandom(10)/2==0;
}

private int getRandom(int seed)
{
 return RandomUtil.getRandomValue(seed);
}

//getter及setter方法
public int getHealth() {
 return health;
}
public void setHealth(int health) {
 this.health = health;
}
public String getName() {
 return name;
}
public void setName(String name) {
 this.name = name;
}
public int getX() {
 return x;
}
public void setX(int x) {
 this.x = x;
}
public int getY() {
 return y;
}
public void setY(int y) {
 this.y = y;
}
public int getDamage() {
 return damage;
}
public void setDamage(int damage) {
 this.damage = damage;
}

}

切面RecordGame.aj的代码如下 ：

package springroad.demo.chap5.aspectj;
public aspect RecordGame {
 private static java.text.SimpleDateFormat df=new java.text.SimpleDateFormat("yyyy-MM-dd H:m:s");
 pointcut doRecord():execution(boolean Soldier.attack(Soldier)); 
 pointcut  supperRole(Soldier s): target(s)&&execution(boolean Soldier.canTreat()); 
 after() returning(boolean value) :doRecord()
 {
  Soldier s=(Soldier)thisJoinPoint.getTarget(); 
  Soldier t=(Soldier)thisJoinPoint.getArgs()[0];
  System.out.println(df.format(new java.util.Date())+":"+s.getName()+"　向　"+t.getName()+"　发动了一次攻击!－－结果："+(value?"成功":"失败"));
  System.out.println(s.getName()+"生命值："+s.getHealth()+";"+t.getName()+"生命值:"+t.getHealth());
 }
 after(Soldier s)returning(boolean value):target(s)&&call(boolean Soldier.canTreat())
 {
  if(value)System.out.println(s.getName()+"得到治疗！");
 }
 boolean around(Soldier s): supperRole(s)
 {
    if("super".equals(s.getName())) return true;
    else return proceed(s);
 }
 }

使用ajt编译上面的四个文件，在命令行输入如下所示命令（要求AspectJ正确安装及配置)：

ajc springroad/demo/chap5/*.*j*

然后再使用java 命令执行MainTest即可以看到非常有趣的结果。如下图所示：

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