添加日志切面，拦截打印所有InnerApiController类中的所有方法的参数

src/main/java/cn/quantgroup/xyqb/aspect/log/ParamLogAdvice.java

@@ -9,17 +9,14 @@ import javassist.NotFoundException;
 import javassist.bytecode.CodeAttribute;
 import javassist.bytecode.LocalVariableAttribute;
 import javassist.bytecode.MethodInfo;
-import org.aspectj.lang.ProceedingJoinPoint;
-import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.annotation.After;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Pointcut;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.context.annotation.Configuration;
-import org.w3c.dom.Attr;
 
-import java.util.Arrays;
-import java.util.UUID;
 
 /**
  * Created by 11 on 2017/4/20.
@@ -30,27 +27,27 @@ public class ParamLogAdvice {
 
     private Logger LOGGER = LoggerFactory.getLogger(ParamLogAdvice.class);
 
+    /**
+     * 定义切面,拦截InnerController类中的所有方法
+     */
     @Pointcut("execution(* cn.quantgroup.xyqb.controller.external.user.InnerController.*(..))")
     public void logPointCut(){}
 
-    @Around("logPointCut()")
-    public Object printMethodParam(ProceedingJoinPoint pjp) {
-        Object obj = null;
-        try {
-            obj = pjp.proceed();
-        } catch (Throwable t) {
-            t.printStackTrace();
-        }
-        Object[] params = pjp.getArgs();
-        String methodName = pjp.getSignature().getName();
+    /**
+     * 后置通知,方法执行后获取方法的入参信息并打印日志
+     * @param jp
+     */
+    @After("logPointCut()")
+    public void printMethodParam(JoinPoint jp) {
+        Object[] params = jp.getArgs();
+        String methodName = jp.getSignature().getName();
         String[] paramNames = null;
         try {
-            paramNames = getFieldsName(pjp.getTarget().getClass(), pjp.getTarget().getClass().getName(), methodName);
+            paramNames = getFieldsName(jp.getTarget().getClass(), jp.getTarget().getClass().getName(), methodName);
         } catch (Exception e) {
             e.printStackTrace();
         }
         StringBuffer buffer = new StringBuffer();
-        LOGGER.info("invoke method:{}, method params:{}", pjp.getSignature().getName(), Arrays.toString(params));
         if(null != paramNames) {
             for(int i = 0; i < paramNames.length; i ++) {
                 buffer.append(paramNames[i]).append(":").append(params[i]).append(" ");
@@ -58,17 +55,27 @@ public class ParamLogAdvice {
             String logInfo = buffer.toString().substring(0, buffer.toString().length() - 1);
             LOGGER.info("调用方法,方法名:{} , 方法参数:{}", methodName, logInfo);
         }
-        return obj;
     }
 
+    /**
+     * 利用javassist获取方法的参数名称
+     * @param cls
+     * @param clazzName
+     * @param methodName
+     * @return
+     * @throws NotFoundException
+     */
     private static String[] getFieldsName(Class cls, String clazzName, String methodName) throws NotFoundException {
+        //获取class定义的容器
         ClassPool pool = ClassPool.getDefault();
         ClassClassPath classPath = new ClassClassPath(cls);
         pool.insertClassPath(classPath);
-
+        //从容器中获取编译后的class
         CtClass cc = pool.get(clazzName);
+        //反射获取指定方法
         CtMethod cm = cc.getDeclaredMethod(methodName);
         MethodInfo methodInfo = cm.getMethodInfo();
+
         CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
         LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
         if (attr == null) {