Using @AspectJ-Style Annotations
Java代码
- @Component("myDependency")
- public class MyDependency {
- public void foo(int intValue) {
- System.out.println("foo(int): " + intValue);
- }
- public void bar() {
- System.out.println("bar()");
- }
- }
Java代码
- @Component("myBean")
- public class MyBean {
- private MyDependency myDependency;
- public void execute() {
- myDependency.foo(100);
- myDependency.foo(101);
- myDependency.bar();
- }
- @Autowired
- public void setDep(MyDependency myDependency) {
- this.myDependency = myDependency;
- }
- }
Java代码
- @Component
- @Aspect
- public class MyAdvice {
- @Pointcut("execution(* com.apress.prospring3.ch7..foo*(int)) && args(intValue)")
- public void fooExecution(int intValue) {
- }
- @Pointcut("bean(myDependency*)")
- public void inMyDependency() {
- }
- @Before("fooExecution(intValue) && inMyDependency()")
- public void simpleBeforeAdvice(JoinPoint joinPoint, int intValue) {
- // Execute only when intValue is not 100
- if (intValue != 100) {
- System.out.println("Executing: " +
- joinPoint.getSignature().getDeclaringTypeName() + " "
- + joinPoint.getSignature().getName() + " argument: " + intValue);
- }
- }
- @Around("fooExecution(intValue) && inMyDependency()")
- public Object simpleAroundAdvice(ProceedingJoinPoint pjp, int intValue) throws Throwable {
- System.out.println("Before execution: " +
- pjp.getSignature().getDeclaringTypeName() + " "
- + pjp.getSignature().getName()
- + " argument: " + intValue);
- Object retVal = pjp.proceed();
- System.out.println("After execution: " +
- pjp.getSignature().getDeclaringTypeName() + " "
- + pjp.getSignature().getName()
- + " argument: " + intValue);
- return retVal;
- }
- }
Xml代码
- <aop:aspectj-autoproxy/> <!--inform Spring to scan for
- @AspectJ-style annotations-->
- <context:component-scan base-package="com.apress.prospring3.ch7.aspectjannotation"/>
