實驗環境：

window10 x64

kettle7.1 pdi-ce-7.1.0.0-12.zip

錯誤現象：

a java exception has occurred

問題解決：

運行調試工具

data-integration\SpoonDebug.bat //調試錯誤的，根據錯誤明確知道為何啟動不了，Y--Y---Y ,在根目錄下生成SpoonDebug.txt文件

根據調試日誌

DEBUG: Using JAVA_HOME
DEBUG: _PENTAHO_JAVA_HOME=C:\Java\jdk1.7.0_80
DEBUG: _PENTAHO_JAVA=C:\Java\jdk1.7
 
.0_80\bin\java.exe

D:\ETL-Kettle\data-integration>"C:\Java\jdk1.7.0_80\bin\java.exe"  "-Xms1024m" "-Xmx2048m" "-XX:MaxPermSize=256m" "-Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2" "-Djava.library.path=libswt\win64" "-DKETTLE_HOME=" "-DKETTLE_REPOSITORY=" "-DKETTLE_USER=" "-DKETTLE_PASSWORD=" "-DKETTLE_PLUGIN_PACKAGES=
 
" "-DKETTLE_LOG_SIZE_LIMIT=" "-DKETTLE_JNDI_ROOT=" -jar launcher\pentaho-application-launcher-7.1.0.0-12.jar -lib ..\libswt\win64  /level:Debug 
java.lang.UnsupportedClassVersionError: org/pentaho/commons/launcher/Launcher : 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:142)
    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 sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main" 

根據查詢得之，
Unsupported major.minor version 52.0，是java-jdk1.8的東西，因此安裝jdk1.8在啟動就好了!

運行真身

Kettle7.1在window啟動報錯