有一个非常简单的方法。您可以尝试以下解决方案。

sudo update-alternatives --config java

更新java版本后，检查Gradle当前JVM的版本，以确保应用了这个更改。

gradle -v

要了解更多细节，请查看您的gradlew文件(unix类操作系统)或gradlew.bat文件(windows操作系统)，以了解Gradle如何配置JAVACMD变量。

例如

# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
        # IBM's JDK on AIX uses strange locations for the executables
        JAVACMD="$JAVA_HOME/jre/sh/java"
    else
        JAVACMD="$JAVA_HOME/bin/java"
    fi
    if [ ! -x "$JAVACMD" ] ; then
        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
else
    JAVACMD="java"
    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi

两种方式

在它。org.gradle.java.home=/path_to_jdk_directory

or:

在你的房子里，gradle compileJava.options.fork = true 编译java .options. forkoptions .executable = '/path_to_javac'

如果您正在使用gradle包装器执行，您可以像下面这样使用JDK路径运行该命令

。/ gradlew -Dorg.gradle.java.home = / jdk_path_directory

我使用的是Gradle 4.2。JDK默认为Java 9。在Java 9的早期，Gradle 4.2在JDK 8上正确运行(不是JDK 9)。

我手动设置JDK，在%GRADLE_HOME%\bin\gradle.bat文件中:

@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem  Gradle startup script for Windows
@rem
@rem ##########################################################################

@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal

set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%..

@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=

@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome

@rem VyDN-start.
set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_144\
@rem VyDN-end.

set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init

echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.

goto fail

:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%


@rem VyDN-start.
set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_144\
@rem VyDN-end.


set JAVA_EXE=%JAVA_HOME%/bin/java.exe

if exist "%JAVA_EXE%" goto init

echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.

goto fail

:init
@rem Get command-line arguments, handling Windows variants

if not "%OS%" == "Windows_NT" goto win9xME_args

:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2

:win9xME_args_slurp
if "x%~1" == "x" goto execute

set CMD_LINE_ARGS=%*

:execute
@rem Setup the command line

set CLASSPATH=%APP_HOME%\lib\gradle-launcher-4.2.jar

@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.launcher.GradleMain %CMD_LINE_ARGS%

:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd

:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1

:mainEnd
if "%OS%"=="Windows_NT" endlocal

:omega

Android工作室

文件>项目结构> SDK位置> JDK位置>

/usr/lib/jvm/java-8-openjdk-amd64

GL

安装JDK

如果你在gradle中添加JDK_PATH。您的构建依赖于该特定路径上的属性。 使用以下命令行参数运行gradle任务

gradle build -Dorg.gradle.java.home=/JDK_PATH

这样您的构建就不依赖于某些具体的路径。