System.loadLibrary() returns exception from static block

问题

I have created a Java app which loads one Windows DLL from the static initialization block. The code snippet is given below:

// MyTestJava class starts
class MyTestJava
{

static
    {
        System.loadLibrary("MyLib");
    }
} // MyTestJava class def ends here

I heard that for kinds of library initializations performed from static block, JVM should search in java.library.path. So I set library path for JVM as follows and put MyLib.dll under c:\Libs folder.

options[1].optionString = "-Djava.library.path=C:\\Libs"; 

Unfortunately I'm getting a pesky Unsatisfied Link Error in my Java app.

回答1:

Not clear what options[1].optionString = "-Djava.library.path=C:\\Libs"; means. You should pass java.library.path as a java arg

java -Djava.library.path=C:\Libs MainClass

回答2:

First call getEnv and check if "java.library.path" actually refers to your library. Else You can try giving absolute path of file by using

static
{
System.load("C:\\Libs");
}

来源：https://stackoverflow.com/questions/16728586/system-loadlibrary-returns-exception-from-static-block