spring aop注解样例

[b][color=green]spring aop注解样例,使用简单[/color][/b]

[b]代码如下:[/b]

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

/**
* 拦截器:对controller层进行拦截
* @author zx
* @date 2017-03-10
*/
@Aspect
@Component
public class ControllerIntercerptor {

private static final Logger logger = LoggerFactory.getLogger(ControllerIntercerptor.class);


/**
* 定义拦截规则:拦截com.zx.controller包下面的所有类中,有@RequestMapping注解的方法。
*/
@Pointcut("execution(* com.zx.controller..*(..)) and @annotation(org.springframework.web.bind.annotation.RequestMapping)")
public void controllerMethodPointcut(){
}

@Before("controllerMethodPointcut()")
public void before(JoinPoint joinPoint)
{
System.out.println(joinPoint.getSignature().getName());
System.out.println("================@before(controllerMethodPointcut())");
}

@After("controllerMethodPointcut()")
public void After(JoinPoint joinPoint)
{
System.out.println(joinPoint.getSignature().getName());
System.out.println("================@After(controllerMethodPointcut())");
}

@Around("controllerMethodPointcut()")
public Object Around(ProceedingJoinPoint joinPoint) throws Throwable
{
System.out.println(joinPoint.getSignature().getName());

System.out.println("================@Around(controllerMethodPointcut())");

return joinPoint.proceed();
}

/**
* 拦截器具体实现
* @param pjp
* @return JsonResult(被拦截方法的执行结果,或需要登录的错误提示。)
*/
@Around("controllerMethodPointcut()") //指定拦截器规则;也可以直接把“execution(* com.zx.........)”写进这里
public Object Interceptor(ProceedingJoinPoint pjp){
MethodSignature signature = (MethodSignature) pjp.getSignature();
Method method = signature.getMethod(); //获取被拦截的方法
String methodName = method.getName(); //获取被拦截的方法名

//Set allParams = new LinkedHashSet<>(); //保存所有请求参数,用于输出到日志中

System.out.println("================@Around(controllerMethodPointcut())");

Object result = null;

Object[] args = pjp.getArgs();
for(Object arg : args){
System.out.println(arg);
}

// 一切正常的情况下,继续执行被拦截的方法
try {
result = pjp.proceed();
} catch (Throwable e) {
e.printStackTrace();
}

return result;
}


}


[color=green]项目地址:[url]https://github.com/zhangxia1030/spring-boot-example[/url][/color]