aspectj手写权限申框架预习

AOPOOPSpring重要内容，是函数式编程的一种衍生范型。利AOP部分进行各部分之间的耦合度降低，提高程序的可重用性，同时提高了AOPOOPSpring重要内容，是函数式编程的一种衍生范型。利AOP部分进行各部分之间的耦合度降低，提高程序的可重用性，同时提高了1.1主要功能日志记录，性能统计，安全控制，事务处理，异常处理1.2主要目标将日志记录，性能统计，安全控制，事务处理，异常处理码中划分出来，通过对这些行这些行为的时候不1.3适用对象OOP力有日志、性能、安全、异常处理1.4AOPOOP装，以获得更不是单一的类，不OOP不是单一的类，不OOP是处理AOP不OOP了OOP不足。OOP了问题，AOPAOP.1意思就是意思就是ajc器Java器.ajaspectj在Java编译器的基础上增加了ajc器Java器.ajaspectj在Java编译器的基础上增加了weaver织入器：为了在java编译器上使用AspectJ而不Ajc器，aspectJ5了@AspectJ，AspectJJava器AndroidStudioajc器Android@AspectJ（SpringAOP）目标程序，根据切点（PointCut）Aspect（Weave）到目标程序的.class了重构（象、方法、参数等上下文信息），AOP2.1Gradle配置示AspectJAndroidGradle行classpath'org.aspectj:aspectjtools:1.8.9'import行classpathcompileimportorg.aspectj.bridge.IMessageimportorg.aspectj.bridge.IMessageimportorg.aspectj.bridge.MessageHandlerimportorg.aspectj.tools.ajc.Main//gradleandroid.libraryVariants.all{variantLibraryPluginplugin=project.plugins.getPlugin(LibraryPlugin)JavaCompilejavaCompile=variant.javaCompilejavaCompile.doLast{String[]args=["showWeaveInfo","inpath",javaCompile.destinationDir.toString(),"aspectpath",javaCompile.classpath.asPath,"d",javaCompile.destinationDir.toString(),"classpath",javaCompile.classpath.asPath,MessageHandlerhandler=newMessageHandler(true);newMain().run(args,handler)deflog=for(IMessagemessage:handler.getMessages(null,true)){switch(message.getKind()){casecasecaselog.errormessage.message,message.thrownmessage.message,message.throwncaselog.debugmessage.message,message.thrown2.2基本概念2.2.1切面——实现crosscuttinglogging2.2基本概念2.2.1切面——实现crosscuttinglogging法执行AOP了，我们可以针对不同的需求做出不//aspectj{disableWhenDebugtruejavartNeededtrueexcludegroup:'xxxx',module:'xxxx'compileOptions{defaultJavaVersion=buildscript{repositories{dependenciesclasspath'com.meituan.gradle:roboaspectj:0.9.2'classpath'jaop.gradle.plugin:gradleplugin:1.0.2'//Excludetheversionthattheandroidplugindepends2.2.2连接点——findInfo(String)AspectJ行JoinPoint2.2.2连接点——findInfo(String)AspectJ行JoinPoint行下面列AspectJjoinpoint2.2.3切点——pointcutadvicejointpoint达式来进行匹配应用，决定了jointpointcallexecution、target、this、within达式来进行匹配应用，决定了jointpointcallexecution、target、this、within1.JoinPointpointcutsJoinpointJPointJPoint，每一个函数执行找到目标的表2列出了JPoint表2列出了JPoint使用且call(<列arg()call(<列arg()@Around(value="execution(*BitmapFacade.picasso.init(java.lang.String,java.lang.String))&&publicObjectaroundArgs(Stringarg1,Stringarg2,ProceedingJoinPointjoinPoint){System.out.println("aspectsarg="+arg1.toString()+""+arg2);ObjectresutObject=null;try{resutObject=joinPceed(new}catch(Throwablee){@Pointcut("execution(**..Activity+.onStart(..))&&within(com.meituan.hotel.roadmap.*)")publicvoidonStart(){}@Pointcut("call(@Describepublicvoidcom.davidkuper.MainActivity.*(..))")publicvoidpointCut(){}@Pointcut("call(*android.widget.Toast+.show(..))&&(within(com.meituan..*)||publicvoidtoastShow()@Pointcut("call(@Describepublicvoidcom.davidkuper.MainActivity.init(Context))")publicvoidpointCut(){}通过2.2.4通知——pointcut通过2.2.4通知——pointcutadvice（包括：beforeafter、around）（1）@Before、例privatestaticfinalStringINSTANCE_METHOD_CALL@paramepublicvoidhandle(Exceptione){}@Around("execution(static*tBitmapFacade.picasso.init(..))&&!within(aspectj.*)")publicvoidpointCutAround(ProceedingJoinPointjoinPoint){ObjectresutObject=null;try{Object[]args=joinPoint.getArgs();resutObject=joinPceed(args);}catch(Throwablee){returnreturn@param@parame@param@parame@AfterThrowing(pointcut="afterThrow()",throwing="e")publicvoidafterThrowing(JoinPointjoinPoint,Exceptione){Log.e(TAG,joinPoint.getTarget().getClass().getSimpleName()+"afterThrowing():"+privatestaticfinalStringPOINTCUT_METHOD"(execution(*android.app.Activity+.*(..))||execution(**..Layout+.*(..)))&&@Pointcut(POINTCUT_METHOD)publicvoidmethodAnnotated(){@Around("methodAnnotated()")publicObjectweaveJoinPoint(ProceedingJoinPointjoinPoint)throwsThrowable{行Objectresult=joinPceed();returnresult;"call(!static*com.meituan.hotel.roadmap..*.*(..))&&target(Object)";@Pointcut(INSTANCE_METHOD_CALL)publicvoidinstanceMethodCall(){@Before("instanceMethodCall()")publicvoidbeforInstanceCall(JoinPointjoinPoint){printLog(joinPoint,"beforeinstancecall");@After("instanceMethodCall()")publicvoidafterInstanceCall(JoinPointjoinPoint){printLog(joinPoint,"afterinstancecall");2.3执行原AspectJ.class2.3执行原AspectJ.class行代码注入的方式将通知(Advise)pointCutAdviseJoinPoint这样在程序运行AdviseJoinPointBeforeAfterBeforeAfterJoinPointBefore\AfterAdviseJoinPoint行2.3.2Around2.3.2Around替换，通过一个单独的闭包拆分来执行JoinPoint行了代理ExampleprintLog()方法进行代理ExampleprintLog()方法进行getValue()AdvisepublicclasspublicclassExample{Stringvalue="value";publicvoidprintLog(){Stringstr=publicStringgetValue(){returnvalue;网上给的反编译过程都是hotel_road_mapdebugjar里网上给的反编译过程都是hotel_road_mapdebugjar里类，不知道什publicclassExampleprivatestaticfinalStaticPartajc$tjp_0=null;privatestaticfinalStaticPartajc$tjp_1=privatestaticfinalStringINSTANCE_METHOD_EXECUTING="execution(!static*@Pointcut(INSTANCE_METHOD_EXECUTING)publicvoidinstanceMethodExecuting(){行@Around("instanceMethodExecuting()")publicObjectInstanceMethodExecutingAround(ProceedingJoinPointjoinPoint){Objectresult=printLog(joinPoint,"instancereturn例privatestaticfinalStringINSTANCE_METHOD_CALL="call(!static*@Pointcut(INSTANCE_METHOD_CALL)publicvoidinstanceMethodCall(){@Before("instanceMethodCall()")publicvoidbeforInstanceCall(JoinPointjoinPoint){printLog(joinPoint,"beforeinstancecall");@After("instanceMethodCall()")publicvoidafterInstanceCall(JoinPointjoinPoint){printLog(joinPoint,"afterinstancecall");privatestaticprivatestaticfinalStaticPartajc$tjp_2=StringTAG="Example";Stringvalue="value";static{列privatestaticvoidajc$preClinit()Factoryfactory=newFactory("Example.java",ajc$tjp_0=factory.makeSJP(JoinPoint.METHOD_CALL,factory.makeMethodSig("1","getValue","com.meituan.hotel.roadmap.Ex");ajc$tjp_1=factory.makeSJP(JoinPoint.METHOD_EXECUTION,factory.makeMethodSig("1","printLog","com.meituan.hotel.roadm");ajc$tjp_2=factory.makeSJP(JoinPoint.METHOD_EXECUTION,factory.makeMethodSig("1","getValue","com.meituan.hotel.roadm");publicclassAjcClosure1extendsAroundClosure{publicAjcClosure1(Object[]objArr){publicObjectrun(Object[]objArr){Object[]objArr2=this.state;Example.printLog_aroundBody0((Example)objArr2[0],(JoinPoint)objArr2[1]);returnnull;staticfinalvoidprintLog_aroundBody0(Exampleajc$this,JoinPointjoinPoint){JoinPointmakeJP=Factory.makeJP(ajc$tjp_0,ajc$this,ajc$this);tryStringstr=ajc$this.getValue();}finally行Before正的方法体被放在了新的方法中。Before\AfterPointCutJoinPointBefore\AfterPointCutJoinPointBefore\AfterJoinPointAOPstaticfinalvoidprintLog_aroundBody0(Exampleajc$this,JoinPointjoinPoint){JoinPointmakeJP=Factory.makeJP(ajc$tjp_0,ajc$this,ajc$this);tryStringstr=ajc$this.getValue();}finally行publicvoidprintLog()JoinPointmakeJP=Factory.makeJP(ajc$tjp_1,this,LogAspect.aspectOf().InstanceMethodExecutingAround(newAjcClosure1(newObject[]{this,makeJP}).linkClosureAndJoinPoint(publicStringgetValue()JoinPointmakeJP=Factory.makeJP(ajc$tjp_2,this,this);return(String)LogAspect.InstanceMethodExecutingAround(newAjcClosure3(newObject[]{this,Around为Around为printLogXXX_aroundBodyN(args)的方法体被放在了新的方法中。publicvoidprintLog()JoinPointmakeJP=Factory.makeJP(ajc$tjp_1,this,joinPceed()调用闭包执行原方法。LogAspect.aspectOf().InstanceMethodExecutingAround(newAjcClosure1(newObject[]{this,列privatestaticvoidajc$preClinit()Factoryfactory=newFactory("Example.java",ajc$tjp_0=factory.makeSJP(JoinPoint.METHOD_CALL,factory.makeMethodSig("1","getValue","com.meituan.hotel.roadmap.Exa");ajc$tjp_1=factory.makeSJP(JoinPoint.METHOD_EXECUTION,factory.makeMethodSig("1","printLog","com.meituan.hotel.roadma");ajc$tjp_2=factory.makeSJP(JoinPoint.METHOD_EXECUTION,factory.makeMethodSig("1","getValue","com.meituan.hotel.roadma");publicJoinPoint.StaticPartmakeSJP(Stringkind,Stringmodifiers,StringmethodName,StringdeclaringType,StringparamTypes,StSignaturesig=this.makeMethodSig(modifiers,methodName,declaringType,paramTypes,paramNames,"",returnType);returnnewJoinPointImpl.StaticPar