方面
@Configurable
@Aspect
public class FilmCounter {
private Map<Integer, Integer> filmCounts =
new HashMap<Integer, Integer>();
@Pointcut(
"execution(* soundsystem.CompactDisc.play(int)) " +
"&& args(filmNumber)" )
public void filmPlayed(int filmNumber) {}
@Before("filmPlayed(filmNumber)")
public void countFilm(int filmNumber){
int currentCount = getPlayCount(filmNumber);
filmCounts.put(filmNumber, currentCount + 1);
System.out.println("filmNumber " + filmNumber + " contains in ? " + filmCounts.containsKey(filmNumber) + " then filmCount = " + filmCounts.get(filmNumber));
}
public int getPlayCount(int filmNumber){
//System.out.println("filmNumber " + filmNumber + " contains in ? " + filmCounts.containsKey(filmNumber) + "");
return filmCounts.containsKey(filmNumber)
? filmCounts.get(filmNumber) : 0;
}
}
配置类
在AspectJ运行时lib下,不需要@EnableAspectJAutoProxy
注释
@Configuration
public class FilmCounterConfig {
@Bean
public CompactDisc filmDisk(){
FilmDisc cd = new FilmDisc();
cd.setTitle("1981's Melody Films");
cd.setArtist("Kishor Kumar");
List<String> films = new ArrayList<String>();
films.add("Sanam Teri Kasam");
films.add("Akhari Rasta");
films.add("Hum Apke Hai Koun");
films.add("Dil Hain Ke Manata Nahi");
films.add("Hum Sath Sath Hain");
cd.setFilms(films);
return cd;
}
@Bean
public FilmCounter filmCounter(){
return new FilmCounter();
}
}
测试类
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes=FilmCounterConfig.class)
public class FilmCounterTest {
@Rule
public final SystemOutRule systemOutRule = new SystemOutRule().enableLog();
@Autowired
private CompactDisc cd;
@Autowired
private FilmCounter counter;
@Test
public void testFilmCounter(){
cd.play(1); System.out.println("counter.getPlayCount(1) = " + counter.getPlayCount(1));
cd.play(2);
cd.play(3);
cd.play(3);
cd.play(3);
cd.play(3);
/*assertEquals(1, counter.getPlayCount(1));
assertEquals(1, counter.getPlayCount(2));
assertEquals(4, counter.getPlayCount(3));
*/
System.out.println("Film 1 = " + counter.getPlayCount(1));
System.out.println("Film 2 = " + counter.getPlayCount(2));
System.out.println("Film 3 = " + counter.getPlayCount(3));
}
}
运行上面的测试用例时,我得到以下输出:
图像显示第一个方法调用cd.play(2);
的控制台日志输出看起来没问题,但是在调用System.out.println("Film 1 = " + counter.getPlayCount(1));
后它显示错误的结果(它应显示“4”但显示“0”)
答案 0 :(得分:0)
我想我知道发生了什么,看看你的控制台日志:有一个活动的方面实例记录你的方法调用,但可能与你的测试连接的不一样。这可以解释方面日志输出与测试日志输出之间的差异。
如果您将System.out.println(this);
添加到countFilm(int)
建议并System.out.println(counter);
添加到测试用例,我猜您可能会看到两个不同的对象ID。
如果我是对的,你的豆子布线有问题。请在评论中提供反馈。