Sample code for blog post: http://kurotofu.sytes.net/kanji/fool/?p=914

gistfile2.xml

    <beans:bean id="encoder" class="org.springframework.security.crypto.password.StandardPasswordEncoder" />

gistfile3.xml

	<authentication-manager>
		<authentication-provider>
			<password-encoder ref="encoder" />
			<user-service>
				<user name="hoge" password="4c17b8a334f61a4d5c0b79f11977482ea7542c0761b74ee421b9cfe620ec1a7e07357932200428f6" authorities="ROLE_USER" />
			</user-service>
		</authentication-provider>
	</authentication-manager>

SpringEncoder.java

    public static void main(String[] args) {
        System.out.println("Enter a string to encode:");

        Scanner scan = new Scanner(System.in);

        String org = scan.next();
        System.out.println("Original String: "+ org);

        StandardPasswordEncoder encoder = new StandardPasswordEncoder();
        String enc = encoder.encode(org);
        System.out.println("Encoded String: "+ enc);
    }