AndroidStudio 配置 AspectJ 环境实现AOP的方法

2020-11-02 22:44:45 浏览数 (1)

昨天看了一段android配置aspectj实现AOP的直播视频,就试着自己配置了一下,可能是因为我自己的AndroidStudio环境的问题,碰到了不少的坑(其实还是因为对gradle理解的不多),但总归是配置好了,就分享一下。

试了两种方式,不过项目下的build.gradle,没什么变化,直接看一下代码吧:

build.gradle(项目下)

代码语言:javascript复制
buildscript {
  ext {
    //android appcompat支持库版本
    androidSupportVersion = '26.1.0'
    //编译的 SDK 版本,如API20
    compileSdkVersion = 26
    //构建工具的版本,其中包括了打包工具aapt、dx等,如API20对应的build-tool的版本就是20.0.0
    buildToolsVersion = "26.0.2"
    //兼容的最低 SDK 版本
    minSdkVersion = 15
    //向前兼容,保存新旧两种逻辑,并通过 if-else 方法来判断执行哪种逻辑
    targetSdkVersion = 26
    //kotlin版本号
    kotlin_version = '1.2.10'

    kotlinVersion = "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    appcompatV7 = "com.android.support:appcompat-v7:$androidSupportVersion"
    appcompatDesign = "com.android.support:design:$androidSupportVersion"
    constraintLayout = 'com.android.support.constraint:constraint-layout:1.0.2'
  }
  repositories {
    google()
    jcenter()
    mavenCentral()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.0.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    classpath 'org.greenrobot:greendao-gradle-plugin:3.2.1'
    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
    classpath 'org.aspectj:aspectjtools:1.8.13'
    classpath 'org.aspectj:aspectjweaver:1.8.13'
  }

}

allprojects {
  repositories {
    google()
    jcenter()
    mavenCentral()
  }
}

task clean(type: Delete) {
  delete rootProject.buildDir
}

看着一大堆,主要就是下面这几行配置,其他的是我自己项目中用到的,根据自己需要配置就行。

代码语言:javascript复制
buildscript {
  repositories {
    mavenCentral()
  }
  dependencies {
    classpath 'org.aspectj:aspectjtools:1.8.13'
    classpath 'org.aspectj:aspectjweaver:1.8.13'
  }
}

repositories {
  mavenCentral()
}

其实这几行配置在app的build.gradle里也是可以的,但是因为项目下的build.gradle里已经有buildscript {}、allprojects {repositories{} },就配置在这里了。

然后有两种配置方式:

第一种

只有一个主Module app的情况下,配置app的build.gradle:

代码语言:javascript复制
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'org.greenrobot.greendao'
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
applicationId "填入自己的applicationId"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
//Lambda配置
//    jackOptions.enabled = true
//    android.compileOptions.sourceCompatibility 1.8
buildConfigField "boolean", "LOG", "true"// 显示Log
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
//支持矢量图
vectorDrawables.useSupportLibrary = true
ndk {
//选择要添加的对应cpu类型的.so库。
abiFilters 'armeabi', 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64', 'mips', 'mips64'
}
}
buildTypes {
release {
minifyEnabled false
buildConfigField "boolean", "LOG", "false"// 显示Log
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
//Lambda配置
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
dataBinding {
enabled true
}
greendao {
schemaVersion 1//数据库版本号
daoPackage 'com.test.qby.newtestapplication.greendao'//设置DaoMaster、DaoSession、Dao包名
targetGenDir 'src/main/java'//设置DaoMaster、DaoSession、Dao目录
//targetGenDirTest:设置生成单元测试目录
//generateTests:设置自动生成单元测试用例
}
lintOptions {
abortOnError true
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation rootProject.ext.kotlinVersion
implementation rootProject.ext.appcompatV7
implementation rootProject.ext.constraintLayout
compile rootProject.ext.appcompatDesign
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
compile 'jp.wasabeef:glide-transformations:3.0.1'
// If you want to use the GPU Filters
compile 'jp.co.cyberagent.android.gpuimage:gpuimage-library:1.4.1'
//腾讯bugly
compile 'com.tencent.bugly:crashreport:latest.release'
compile 'com.tencent.bugly:nativecrashreport:latest.release'
//retrofit
compile 'com.squareup.retrofit2:retrofit:2.3.0'
compile 'com.squareup.retrofit2:converter-gson:2.3.0'
compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
compile 'com.squareup.okhttp3:logging-interceptor:3.9.0'
//rxJava
compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
// Because RxAndroid releases are few and far between, it is recommended you also
// explicitly depend on RxJava's latest version for bug fixes and new features.
compile 'io.reactivex.rxjava2:rxjava:2.1.8'
//greenDao
compile 'org.greenrobot:greendao:3.2.0'
//换肤功能
compile 'com.zhy:changeskin:4.0.2'
//AOP面向切面编程,加入这行就不用在libs下引入jar包了,不然要写成compile file(libs/aspectjrt.jar)
compile 'org.aspectj:aspectjrt:1.8.13'
}
/*
//在项目下配置了,此处就不需要了
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'org.aspectj:aspectjtools:1.8.13'
classpath 'org.aspectj:aspectjweaver:1.8.13'
}
}
repositories {
mavenCentral()
}
*/
import org.aspectj.bridge.IMessage
import org.aspectj.bridge.MessageHandler
import org.aspectj.tools.ajc.Main
final def log = project.logger
final def variants = project.android.applicationVariants
variants.all { variant - 
if (!variant.buildType.isDebuggable()) {
log.debug("Skipping non-debuggable build type '${variant.buildType.name}'.")
return
}
JavaCompile javaCompile = variant.javaCompile
javaCompile.doLast {
String[] args = ["-showWeaveInfo",
"-1.5",
"-inpath", javaCompile.destinationDir.toString(),
"-aspectpath", javaCompile.classpath.asPath,
"-d", javaCompile.destinationDir.toString(),
"-classpath", javaCompile.classpath.asPath,
"-bootclasspath", project.android.bootClasspath.join(File.pathSeparator)]
log.debug "ajc args: "   Arrays.toString(args)
MessageHandler handler = new MessageHandler(true)
new Main().run(args, handler)
for (IMessage message : handler.getMessages(null, true)) {
switch (message.getKind()) {
case IMessage.ABORT:
case IMessage.ERROR:
case IMessage.FAIL:
log.error message.message, message.thrown
break
case IMessage.WARNING:
log.warn message.message, message.thrown
break
case IMessage.INFO:
log.info message.message, message.thrown
break
case IMessage.DEBUG:
log.debug message.message, message.thrown
break
}
}
}
}

这一个gradle主要的东西就是这些:

代码语言:javascript复制
//AOP面向切面编程,加入这行就不用在libs下引入jar包了,不然要写成compile file(libs/aspectjrt.jar)
compile 'org.aspectj:aspectjrt:1.8.13'
import org.aspectj.bridge.IMessage
import org.aspectj.bridge.MessageHandler
import org.aspectj.tools.ajc.Main
final def log = project.logger
final def variants = project.android.applicationVariants
variants.all { variant - 
if (!variant.buildType.isDebuggable()) {
log.debug("Skipping non-debuggable build type '${variant.buildType.name}'.")
return
}
JavaCompile javaCompile = variant.javaCompile
javaCompile.doLast {
String[] args = ["-showWeaveInfo",
"-1.5",
"-inpath", javaCompile.destinationDir.toString(),
"-aspectpath", javaCompile.classpath.asPath,
"-d", javaCompile.destinationDir.toString(),
"-classpath", javaCompile.classpath.asPath,
"-bootclasspath", project.android.bootClasspath.join(File.pathSeparator)]
log.debug "ajc args: "   Arrays.toString(args)
MessageHandler handler = new MessageHandler(true)
new Main().run(args, handler)
for (IMessage message : handler.getMessages(null, true)) {
switch (message.getKind()) {
case IMessage.ABORT:
case IMessage.ERROR:
case IMessage.FAIL:
log.error message.message, message.thrown
break
case IMessage.WARNING:
log.warn message.message, message.thrown
break
case IMessage.INFO:
log.info message.message, message.thrown
break
case IMessage.DEBUG:
log.debug message.message, message.thrown
break
}
}
}
}

下面那一堆是用命令在编译最后做一些关联的,具体的我也不懂,只管加上好了。

第二种

有多个module都需要用到aspectj,特别是组件开发的情况下,不可能每个module都配置一下,所以就需要新建一个aspectj的module作为项目的library。

app下build.gradle需要修改:

代码语言:javascript复制
//AOP面向切面编程,加入这行就不用在libs下引入jar包了,不然要写成compile file(libs/aspectjrt.jar)
compile 'org.aspectj:aspectjrt:1.8.13'

去掉,改为

代码语言:javascript复制
implementation project(':aspectjlib')

不过上面这句在你添加module依赖的时候会自动生成。

新建library的build.gradle配置如下:

代码语言:javascript复制
apply plugin: 'com.android.library'
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation rootProject.ext.appcompatV7
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
//AOP
compile 'org.aspectj:aspectjrt:1.8.13'
}
import org.aspectj.bridge.IMessage
import org.aspectj.bridge.MessageHandler
import org.aspectj.tools.ajc.Main
android.libraryVariants.all { variant - 
JavaCompile javaCompile = variant.javaCompile
javaCompile.doLast {
String[] args = ["-showWeaveInfo",
"-1.5",
"-inpath", javaCompile.destinationDir.toString(),
"-aspectpath", javaCompile.classpath.asPath,
"-d", javaCompile.destinationDir.toString(),
"-classpath", javaCompile.classpath.asPath,
"-bootclasspath", android.bootClasspath.join(
File.pathSeparator)]
MessageHandler handler = new MessageHandler(true)
new Main().run(args, handler)
def log = project.logger
for (IMessage message : handler.getMessages(null, true)) {
switch (message.getKind()) {
case IMessage.ABORT:
case IMessage.ERROR:
case IMessage.FAIL:
log.error message.message, message.thrown
break
case IMessage.WARNING:
case IMessage.INFO:
log.info message.message, message.thrown
break
case IMessage.DEBUG:
log.debug message.message, message.thrown
break
}
}
}
}

注意:下面那一堆跟app的gradle中的稍微有点区别,一个是module,一个是library,gradle中的东西不一样。

两种配置方式基本就是这样了,使用方法我也是刚了解一点,记录一下简单的计算性能的用法吧

自定义注解类:

代码语言:javascript复制
package com.test.qby.aspectjlib.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Created by qby on 2018/1/26 0026.
* 自定义注解
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface IFirstAnnotation {
String value();
}

@Target 注解目标,表示注解使用在什么地方,这里是METHOD方法;@Retention 保留策略,表示注解调用时机,这里RUNTIME运行时

切面类

代码语言:javascript复制
import android.widget.Toast;
import com.test.qby.aspectjlib.annotation.IFirstAnnotation;
import com.test.qby.newtestapplication.app.MyApplication;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import java.lang.reflect.Method;
import java.lang.reflect.TypeVariable;
import java.util.Locale;
/**
* Created by qby on 2018/1/26 0026.
* 自定义注解行为
*/
@Aspect
public class MethodBehaviorAspect {
private static final String TAG = "aspect_aby";
@Pointcut("execution(@com.test.qby.aspectjlib.annotation.IFirstAnnotation * *(..))")
public void firstMethodAnnotationBehavior() {
}
@Pointcut("execution(* com.test.qby.newtestapplication.ui.MainActivity.aspectClick(android.view.View))")
public void secondMethodAnnotationBehavior() {
}
@Around("firstMethodAnnotationBehavior()")
public Object wavePointcutAround(ProceedingJoinPoint joinPoint) throws Throwable {
MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
// 类名
String className = methodSignature.getDeclaringType().getSimpleName();
// 方法名
String methodName = methodSignature.getName();
// 功能名
IFirstAnnotation behaviorTrace = methodSignature.getMethod()
.getAnnotation(IFirstAnnotation.class);
String value = behaviorTrace.value();
//    String value = "点击";
long start = System.currentTimeMillis();
Object result = joinPoint.proceed();
long duration = System.currentTimeMillis() - start;
Log.e(TAG, String.format("%s类中%s方法执行%s功能,耗时:%dms", className, methodName, value, duration));
Toast.makeText(MyApplication.getContext(), String.format(Locale.CHINESE, "%s类中%s方法执行%s功能,耗时:%dms", className, methodName, value, duration), Toast.LENGTH_SHORT).show();
return result;
}
}

@Aspect指定切面类;@Pointcut切入点;@Around是切入方式Advice的一种,表示在切入点前后插入代码,还有@Before、@After;Pointcut语法,execution,表示根据Advice在执行方法内部代码前后插入代码,call,表示根据Advice在调用方法前后插入代码……

页面调用

代码语言:javascript复制
@IFirstAnnotation("测试Aspect")
public void aspectClick(View view) {
try {
Thread.sleep(new Random().nextInt(1000));
} catch (InterruptedException e) {
e.printStackTrace();
}
}

@IFirstAnnotation调用注解,()内部为在IFirstAnnotation中写的value的值,去掉value()后此处去掉()

注意:在MethodBehaviorAspect 类中如果有用到Context,可直接使用joinPoint.getTarget()类型转换成Context,这里是由于项目使用了databinding,部分getTarget()获取到的值不能强转为Context,所以这里用的MyApplication获取的Context

这只是个人的初步尝试,里面当然还有很多内容需要去学,刚看了CSDN上有人写的几篇关于AOP的内容,都挺详细的,可以找来看看

以上就是本文的全部内容,希望对大家的学习有所帮助。

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