解析java.library.path和LD_LIBRARY_PATH的介绍与区别

　　static void loadLibrary(Class fromClass, String name,

　　boolean isAbsolute) {

　　ClassLoader loader =

　　(fromClass == null) ? null : fromClass.getClassLoader();

　　if (sys_paths == null) {

　　usr_paths = initializePath("java.library.path");

　　sys_paths = initializePath("sun.boot.library.path");

　　}

　　if (isAbsolute) {

　　if (loadLibrary0(fromClass, new File(name))) {

　　return;

　　}

　　throw new UnsatisfiedLinkError("Can't load library: " + name);

　　}

　　if (loader != null) {

　　String libfilename = loader.findLibrary(name);

　　if (libfilename != null) {

　　File libfile = new File(libfilename);

　　if (!libfile.isAbsolute()) {

　　throw new UnsatisfiedLinkError(

　　"ClassLoader.findLibrary failed to return an absolute path: " + libfilename);

　　}

　　if (loadLibrary0(fromClass, libfile)) {

　　return;

　　}

　　throw new UnsatisfiedLinkError("Can't load " + libfilename);

　　}

　　}

　　for (int i = 0 ; i < sys_paths.length ; i++) {

　　File libfile = new File(sys_paths[i], System.mapLibraryName(name));

　　if (loadLibrary0(fromClass, libfile)) {

　　return;

　　}

　　}

　　if (loader != null) {

　　for (int i = 0 ; i < usr_paths.length ; i++) {

　　File libfile = new File(usr_paths[i],

　　System.mapLibraryName(name));

　　if (loadLibrary0(fromClass, libfile)) {

　　return;

　　}

　　}

　　}

　　// Oops, it failed

　　throw new UnsatisfiedLinkError("no " + name + " in java.library.path");

　　}