问题
I have a VB.NET script that looks up the current version of java installed.
Everything worked great until java 8 came out.
Back in Java 7 i would do this.
My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment", "Java7FamilyVersion", Nothing)
In Java 8 (Java8FamilyVersion) is gone and has replaced with (FullVersion). The problem is FullVersion is behind two more folders one with the version (18.0_25) Then another folder call MSI
So here is the problem; right now the first folder is called 18.0_25, but in the future it would be changed to something like 18.0.55ish.
I can't update my software that often, so i would like to use a wilcard in the getvalue IE something like this
My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Runtime Environment\1.8.*\MSI", "FullVersion", Nothing)
Above didn't work is their anything that would work?
回答1:
Use the GetSubKeyNamesmethod to enumerate the subkey(s) of "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Runtime Environment", then pick the alphabetically last (so that you do not fall for any old 1.7_xx keys or the 1.8 key)
回答2:
You could grab a file version from one of the Java .dll files. Sorry, I don't have Java installed, but something like this might help you:
Dim fvi As FileVersionInfo = FileVersionInfo.GetVersionInfo("somefilename.dll")
Debug.Print(fvi.ProductVersion)
You can fiddle with the returned properties for major, minor, etc. You should be able to build a version string to get what you need.
来源：https://stackoverflow.com/questions/26593347/vb-net-use-wild-card-in-my-computer-registry-getvalue