IDEA编译器:比如Android studio.可以在File->Settings->Bulid Tools 中去指定你的jdk路径

build.gradle中添加
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_7
targetCompatibility JavaVersion.VERSION_1_7
}
在gradle.properties中添加
org.gradle.java.home=your jdk path
##org.gradle.java.home=D\:/java/jdk-11.0.12
直接通过命令行执行任务,比如./gradlew build
gradlew build -Dorg.gradle.java.home='your jdk path'