!1 修复 AOP的案例，调用/doError时异常不打印

Merge pull request !1 from 海王星Ivan/master

springboot-aop/src/main/java/com/xncoding/aop/aspect/LogAspect.java

@@ -53,15 +53,14 @@ public class LogAspect {
 
     //环绕通知,环绕增强，相当于MethodInterceptor
     @Around("webLog()")
-    public Object arround(ProceedingJoinPoint pjp) {
+    public Object arround(ProceedingJoinPoint pjp) throws Throwable{
         System.out.println("方法环绕start.....");
         try {
             Object o =  pjp.proceed();
             System.out.println("方法环绕proceed，结果是 :" + o);
             return o;
         } catch (Throwable e) {
-            e.printStackTrace();
-            return null;
+            throw e;
         }
     }
 }