使用 allowInsecureProtocol 属性解决 gradle 的仓库地址不安全警告，在 IDEA 的 Terminal 中使用命令
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$ gradlew --warning-mode all |
可以打印出当前 gradle 存在的所有警告信息。
如果有报以下警告：
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Using insecure protocols with repositories, without explicit opt-in, has been deprecated. This is scheduled to be removed in Gradle 7.0. Switch Maven repository 'm aven(http://maven.aliyun.com/nexus/content/groups/public/)' to a secure protocol (like HTTPS) or allow insecure protocols. See https://docs.gradle.org/6.8.3/dsl/or g.gradle.api.artifacts.repositories.UrlArtifactRepository.html#org.gradle.api.artifacts.repositories.UrlArtifactRepository:allowInsecureProtocol for more details. Configuration on demand is an incubating feature. |
说明你配置了除 maven 中央仓库之外的其他不安全的仓库（至于“不安全”在这里的定义，我也不是很清楚，一些国内的镜像仓库例如阿里的也是“不安全”的）gradle 中有一个属性可以允许 gradle 使用“不安全”的仓库并且不报警告信息，该属性是 allowInsecureProtocol，官方的
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Description ：Specifies whether it is acceptable to communicate with a repository over an insecure HTTP connection. |
翻译过来就是指定通过不安全的HTTP连接与仓库通信是否可接受，如果该属性的值设置为 true，则表示接受“不安全”的仓库地址。
目前，升级项目的 gradle 到 7.0.2 版本之后，报错如下：
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* What went wrong: A problem occurred configuring root project 'xxxx'. > Could not resolve all dependencies for configuration ':classpath'. > Using insecure protocols with repositories, without explicit opt-in, is unsupported. Switch Maven repository 'maven(http://xxx.xxx.xxx.xxx/jcenter/)' to red irect to a secure protocol (like HTTPS) or allow insecure protocols. See https://docs.gradle.org/7.0.2/dsl/org.gradle.api.artifacts.repositories.UrlArtifactRepos itory.html#org.gradle.api.artifacts.repositories.UrlArtifactRepository:allowInsecureProtocol for more details. * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. |
只需要在 build.gradle 中进行如下的配置即可：
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repositories { ... maven { allowInsecureProtocol = true ... } } |
参考链接