Android Studio中gradle升級報gradle的倉庫地址不安全警告

1.Android Studio中gradle版本升級(阿里云倉庫下載源)

classpath 'com.android.tools.build:gradle:3.6.3'
升級為
classpath 'com.android.tools.build:gradle:7.0.0'

distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.7-all.zip
升級為
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip

2.Android Studio報gradle的倉庫地址不安全警告的錯誤

使用"阿里云"倉庫為下載源，如果直接升級gradle版本，可能會報錯(gradle的倉庫地址不安全警告的錯誤)，因為配置了除maven中央倉庫之外的其他不安全的倉庫(一些國內的鏡像倉庫，如"阿里云"鏡像倉庫也是不安全的)，如下所示:

A problem occurred configuring root project 'Packer'.
> Could not resolve all dependencies for configuration ':classpath'.
   > Using insecure protocols with repositories, without explicit opt-in, is unsupported. Switch Maven repository 'maven(http://maven.aliyun.com/nexus/content/groups/public/)' to redirect to a secure protocol (like HTTPS) or allow insecure protocols. See https://docs.gradle.org/7.0.2/dsl/org.gradle.api.artifacts.repositories.UrlArtifactRepository.html#org.gradle.api.artifacts.repositories.UrlArtifactRepository:allowInsecureProtocol for more details. 
* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.

3.使用allowInsecureProtocol屬性解決gradle的倉庫地址不安全警告的解決方法

gradle中有一個屬性可以允許gradle使用"不安全"的倉庫并且不報警告資訊，該屬性是allowInsecureProtocol，指定通過不安全的HTTP連接與倉庫通信是否可接受，如果該屬性的值設定為true，則表示接受"不安全"的倉庫地址

只需要在C:\Users\LENOVO\.gradle\init.gradle檔案中或者App專案工程的build.gradle中進行如下的配置即可解決

解決方法:
只需要在C:\Users\LENOVO\.gradle\init.gradle檔案中或者App專案工程的build.gradle中，使用allowInsecureProtocol屬性(允許gradle使用"不安全"的倉庫并且不報警告資訊)
allowInsecureProtocol = true

(1).C:\Users\LENOVO\.gradle\init.gradle

(2).App專案工程的build.gradle

buildscript {
    repositories {
        //ADD START
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/groups/public/'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/google'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin'
        }
        //ADD END
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.0.0'
    }
}

allprojects {
    repositories {
        //ADD START
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/groups/public/'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/google'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin'
        }
        //ADD END
        google()
        jcenter()
    }
}

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

4.Android Studio App專案工程同步成功、App專案編譯成功

5.Android Studio中gradle的倉庫地址不安全警告的通用解決方案(阿里云源)

gradle為了安全考慮，防止他人冒充目標服務器，并在資源中植入惡意代碼...，所以默認禁用使用非官方的中央倉庫（包括:阿里云），如果確認信任該倉庫，需要顯示宣告信任它

第一種情況:with groovy

repositories {
    maven { 
        allowInsecureProtocol = true
        url "http://maven.aliyun.com/nexus/content/groups/public/" 
    }
    maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/google'
        }
        maven {
            allowInsecureProtocol = true
            url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin'
        }
}

第二種情況:with kotlin

repositories {
     maven { 
         isAllowInsecureProtocol = true
         setUrl("http://maven.aliyun.com/nexus/content/groups/public/") 
     }
     maven { 
         isAllowInsecureProtocol = true
         setUrl("http://maven.aliyun.com/nexus/content/repositories/jcenter") 
     }
     maven { 
         isAllowInsecureProtocol = true
         setUrl("http://maven.aliyun.com/nexus/content/repositories/google") 
     }
     maven { 
         isAllowInsecureProtocol = true
         setUrl("http://maven.aliyun.com/nexus/content/repositories/gradle-plugin") 
     }
}

Android Studio gradle無法編譯App的完美解決方法