java - 安装网络逻辑: Unsupported major minor version 52. 0

Question

我正在尝试安装web logic (下面指南中的第 3.6 点)

https://docs.oracle.com/cd/E24902_01/doc.91/e18840/install_config_12_1_3.htm#EOHWL224

运行以下 config.cmd 文件时:

@ECHO ON
SETLOCAL

@REM Determine the location of this script...
SET SCRIPTPATH=%~dp0
FOR %%i IN ("%SCRIPTPATH%") DO SET SCRIPTPATH=%%~fsi

@REM Delegate to the common delegation script...
CALL "%SCRIPTPATH%\fmwconfig_common.cmd" config_internal.cmd %*

SET RETURN_CODE=%ERRORLEVEL%

pause

IF DEFINED USE_CMD_EXIT (

  EXIT %RETURN_CODE%

) ELSE (

  EXIT /B %RETURN_CODE%

)

我收到错误:

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/oracle/ci
e/wizard/domain/WLSWizardConfiguration : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
2)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:274)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:363)
        at java.util.ServiceLoader$1.next(ServiceLoader.java:445)
        at com.oracle.cie.wizard.WizardController.createWizardConfiguration(Wiza
rdController.java:100)
        at com.oracle.cie.wizard.WizardController.main(WizardController.java:67)

Press any key to continue . . .

我该如何解决这个问题？作为引用，我正在使用 Java 7 .

Answer 1

问题是 Java 版本不匹配。根据此页https://en.wikipedia.org/wiki/Java_class_file这里是java版本:

J2SE 9 = 53
J2SE 8 = 52
J2SE 7 = 51
J2SE 6.0 = 50
J2SE 5.0 = 49
JDK 1.4 = 48
JDK 1.3 = 47
JDK 1.2 = 46
JDK 1.1 = 45

似乎您希望使用 Java 7，即 51，但实际上使用 Java 8，即 52