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[英]64-bit Java Apps: Is a 64-bit OS, 64-bit JRE and 64-bit Application required?
[英]Not able to Check installed Java version in Win-10 through NSIS installer for JAVA -8 , 64-bit and above
安裝程序適用於 Win-7、Win-8,但適用於 Win-10。 我的 Java 版本檢查功能是 -
Function checkJavaVersion
${If} ${RunningX64}
${registry::Read} "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environmen" "JAVA_HOME" $0 $1
MessageBox MB_OK "64 bit JAVA Home - $0"
MessageBox MB_OK "64 bit JAVA Home - $1"
${registry::Read} "HKLM\SOFTWARE\JavaSoft\Java Runtime Environment" "CurrentVersion" $0 $1
MessageBox MB_OK "64 bit JRE - $0"
MessageBox MB_OK "64 bit JRE - $1"
${If} $0 == ""
${registry::Read} "HKLM\SOFTWARE\JavaSoft\Java Development Kit" "CurrentVersion" $0 $1
MessageBox MB_OK "64 bit JDK - $0"
MessageBox MB_OK "64 bit JDK - $1"
${EndIf}
${registry::Read} "HKLM\SOFTWARE\WOW6432Node\JavaSoft\Java Runtime Environment" "CurrentVersion" $0 $1
MessageBox MB_OK "32 bit JRE - $0"
MessageBox MB_OK "32 bit JRE - $1"
${If} $0 == ""
${registry::Read} "HKLM\SOFTWARE\WOW6432Node\JavaSoft\Java Development Kit" "CurrentVersion" $0 $1
MessageBox MB_OK "32 bit JDK - $0"
MessageBox MB_OK "32 bit JDK - $1"
${EndIf}
${Else}
${registry::Read} "HKLM\SOFTWARE\JavaSoft\Java Runtime Environment" "CurrentVersion" $0 $1
MessageBox MB_OK "32 bit JRE - $0"
MessageBox MB_OK "32 bit JRE - $1"
${EndIf}
FunctionEnd
在不同系統中運行此示例安裝程序后,我發現對於安裝了 Java 8(64 位)的 Win-10(64 位系統),它無法識別 JAVA 版本,甚至在提升模式下也無法識別。
同樣對於安裝了 JAVA 8(32 位)的 Win-10(64 位系統) HKLM\\SOFTWARE\\JavaSoft\\Java Runtime Environment
此路徑將注冊表搜索重定向到HKLM\\SOFTWARE\\WOW6432Node\\JavaSoft\\Java Runtime Environment
所以在兩者中情況(32 位和 64 位 Java 版本檢查)即使在 Elevated 模式下也能找到 Java 版本,這行為相同,
請查找附件結果以獲得更詳細的結果。
為了更清楚,可以參考這個未解決的問題NSIS 安裝程序問題。
您的 64 位檢測代碼沒有意義,NSIS 在 32 位安裝程序中默認為 32 位注冊表視圖。 WOW6432Node
是一個保留名稱,如果可能,您不應該真正使用它。 提升安裝程序不會改變注冊表重定向的工作方式。
它應該看起來像這樣:
${If} ${RunningX64}
SetRegView 64
${registry::Read} ... $0 $1
...
${EndIf}
SetRegView 32
${If} $0 == ""
${registry::Read} ... $0 $1
...
${EndIf}
根據您鏈接到的頁面,Java v9 更改了注冊表路徑和名稱,因此您也需要更新代碼以處理這些內容。
我通過使用解決了這個問題:
SetRegView 64
因此,用於檢查的函數如下所示:
Function LocateJVM
;Check for Java version and location
Push $0
Push $1
ReadRegStr $JAVA_VER HKLM "SOFTWARE\JavaSoft\Java Runtime Environment" CurrentVersion
StrCmp "" "$JAVA_VER" Check64Bit CheckJavaVer
Check64Bit:
SetRegView 64
ReadRegStr $JAVA_VER HKLM "SOFTWARE\JavaSoft\Java Runtime Environment" CurrentVersion
StrCmp "" "$JAVA_VER" JavaNotPresent CheckJavaVer
JavaNotPresent:
StrCpy $JAVA_INSTALLATION_MSG "Java Runtime Environment nije instalirana na Vašem računaru. Da bi ste pokrenuli ovaj program potrebno je da instalirate Java 1.7 ili noviju."
Pop $1
Pop $0
;MessageBox MB_OK "Molim instalirajte Javu 1.7 ili noviju."
CheckJavaVer:
ReadRegStr $0 HKLM "SOFTWARE\JavaSoft\Java Runtime Environment\$JAVA_VER" JavaHome
GetFullPathName /SHORT $JAVA_HOME "$0"
StrCpy $0 $JAVA_VER 1 0
StrCpy $1 $JAVA_VER 1 2
StrCpy $JAVA_VER "$0$1"
IntCmp 17 $JAVA_VER FoundCorrectJavaVer FoundCorrectJavaVer JavaVerNotCorrect
FoundCorrectJavaVer:
IfFileExists "$JAVA_HOME\bin\javaw.exe" 0 JavaNotPresent
;MessageBox MB_OK "Found Java: $JAVA_VER at $JAVA_HOME"
Goto Done
JavaVerNotCorrect:
;MessageBox MB_OK "Molim instalirajte Javu 1.7 ili noviju."
StrCpy $JAVA_INSTALLATION_MSG "Verzija Java Runtime Environment instalirana na Vašem računaru je $JAVA_VER. Da bi ste pokrenuli ovaj program potrebno je da instalirate Java 1.7 ili noviju."
Done:
Pop $1
Pop $0
FunctionEnd
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