Gradle 下载jar包缓慢

将 google() 或者 jcenter() 换成maven仓库

// Top-level build file where you can add configuration options common to all sub-projects/modules.buildscript {    repositories {//        google()//        jcenter(){ url "http://jcenter.bintray.com/" }        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}    }    dependencies {        classpath 'com.android.tools.build:gradle:3.0.1'        // NOTE: Do not place your application dependencies here; they belong        // in the individual module build.gradle files    }}allprojects {    repositories {//        google()//        jcenter()        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}    }}task clean(type: Delete) {    delete rootProject.buildDir}