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1、切面after切点，将目标方法执行返回值，开放给切点

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2、SimpleAspect没有直接使用的意义，应修改为抽象类
3、修改Aspect#afterException 没有使用返回值进行异常是否抛出的判断。
4、修改CglibInterceptor#intercept 和 JdkInterceptor#intercept 方法中 if else 为 if ，减少else判断,并支持 第3点的修改
This commit is contained in:
刘羽铖 2019-09-25 11:36:03 +08:00
parent 130a348afc
commit 22a51ba86d
4 changed files with 30 additions and 9 deletions
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6
hutool-aop/src/main/java/cn/hutool/aop/aspects/Aspect.java
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@ -23,7 +23,11 @@ public interface Aspect{
/** /**
* 目标方法执行后的操作 * 目标方法执行后的操作
* * 如果 target.method 抛出异常且
* @see Aspect#afterException 返回true,则不会执行此操作
* 如果
* @see Aspect#afterException 返回false,则无论target.method是否抛出异常，均会执行此操作
*
* @param target 目标对象 * @param target 目标对象
* @param method 目标方法 * @param method 目标方法
* @param args 参数 * @param args 参数

12
hutool-aop/src/main/java/cn/hutool/aop/aspects/SimpleAspect.java
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@ -14,18 +14,30 @@ import java.lang.reflect.Method;
public abstract class SimpleAspect implements Aspect, Serializable{ public abstract class SimpleAspect implements Aspect, Serializable{
private static final long serialVersionUID = 1L; private static final long serialVersionUID = 1L;
/**
* @see Aspect#before(Object, Method, Object[])
* @return 是否继续执行接下来的操作 默认值true
*/
@Override @Override
public boolean before(Object target, Method method, Object[] args) { public boolean before(Object target, Method method, Object[] args) {
//继承此类后实现此方法 //继承此类后实现此方法
return true; return true;
} }
/**
* @see Aspect#after(Object, Method, Object[], Object)
* @return 是否允许返回值（接下来的操作） 默认值true
*/
@Override @Override
public boolean after(Object target, Method method, Object[] args, Object returnVal) { public boolean after(Object target, Method method, Object[] args, Object returnVal) {
//继承此类后实现此方法 //继承此类后实现此方法
return true; return true;
} }
/**
* @see Aspect#afterException(Object, Method, Object[], Throwable)
* @return 是否允许抛出异常 默认值true
*/
@Override @Override
public boolean afterException(Object target, Method method, Object[] args, Throwable e) { public boolean afterException(Object target, Method method, Object[] args, Throwable e) {
//继承此类后实现此方法 //继承此类后实现此方法

11
hutool-aop/src/main/java/cn/hutool/aop/interceptor/CglibInterceptor.java
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@ -46,11 +46,14 @@ public class CglibInterceptor implements MethodInterceptor, Serializable {
result = proxy.invokeSuper(obj, args); result = proxy.invokeSuper(obj, args);
} catch (UtilException e) { } catch (UtilException e) {
final Throwable cause = e.getCause(); final Throwable cause = e.getCause();
if (e.getCause() instanceof InvocationTargetException) { if (!(e.getCause() instanceof InvocationTargetException)) {
aspect.afterException(target, method, args, ((InvocationTargetException) cause).getTargetException()); // 其它异常属于代理的异常，直接抛出
} else { throw e;
throw e;// 其它异常属于代理的异常，直接抛出
} }
if(aspect.afterException(target, method, args, ((InvocationTargetException) cause).getTargetException())){
throw e;
}
} }
} }
if (aspect.after(target, method, args, result)) { if (aspect.after(target, method, args, result)) {

10
hutool-aop/src/main/java/cn/hutool/aop/interceptor/JdkInterceptor.java
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@ -47,10 +47,12 @@ public class JdkInterceptor implements InvocationHandler, Serializable{
result = ReflectUtil.invoke(target, method, args); result = ReflectUtil.invoke(target, method, args);
} catch (UtilException e) { } catch (UtilException e) {
final Throwable cause = e.getCause(); final Throwable cause = e.getCause();
if (e.getCause() instanceof InvocationTargetException) { if (!(e.getCause() instanceof InvocationTargetException)) {
aspect.afterException(target, method, args, ((InvocationTargetException) cause).getTargetException()); // 其它异常属于代理的异常，直接抛出
} else { throw e;
throw e;// 其它异常属于代理的异常，直接抛出 }
if(aspect.afterException(target, method, args, ((InvocationTargetException) cause).getTargetException())){
throw e;
} }
} }
} }