java 设置 library_在java程序中动态设置java.library.path
public static void addLibraryDir(String libraryPath) throws IOException {
try {
Field field = ClassLoader.class.getDeclaredField("usr_paths");
field.setAccessible(true);
String[] paths = (String[]) field.get(null);
for (int i = 0; i < paths.length; i++) {
if (libraryPath.equals(paths[i])) {
return;
}
}
String[] tmp = new String[paths.length + 1];
System.arraycopy(paths, 0, tmp, 0, paths.length);
tmp[paths.length] = libraryPath;
field.set(null, tmp);
} catch (IllegalAccessException e) {
throw new IOException(
"Failedto get permissions to set library path");
} catch (NoSuchFieldException e) {
throw new IOException(
"Failedto get field handle to set library path");
}
}
参考地址不详
public static void addLibraryDir(String libraryPath) throws IOException { try { Field field = ClassLoader.class.getDeclaredField("usr_paths"); field.setAccessible(true); String[] paths = (String[]) field.get(null); for (int i = 0; i < paths.length; i++) { if (libraryPath.equals(paths[i])) { return; } } String[] tmp = new String[paths.length + 1]; System.arraycopy(paths, 0, tmp, 0, paths.length); tmp[paths.length] = libraryPath; field.set(null, tmp); } catch (IllegalAccessException e) { throw new IOException( "Failedto get permissions to set library path"); } catch (NoSuchFieldException e) { throw new IOException( "Failedto get field handle to set library path"); } } 参考地址不详