package org.gizmo.util;
import java.util.Random;
import org.apache.commons.codec.binary.Base64;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
import sun.misc.BASE64Encoder;
public class Base64Tests {
private static byte[] randomBinaryData = new byte[5000000];
private static long durationCommons = 0;
private static long durationJava8 = 0;
private static long durationSun = 0;
private static byte[] encodedCommons;
private static byte[] encodedJava8;
private static String encodedSun;
@BeforeClass
public static void setUp() throws Exception {
//We want to test the APIs against the same data
new Random().nextBytes(randomBinaryData);
}
@Test
public void testSunBase64Encode() throws Exception {
BASE64Encoder encoder = new BASE64Encoder();
long before = System.currentTimeMillis();
encodedSun = encoder.encode(randomBinaryData);
long after = System.currentTimeMillis();
durationSun = after-before;
System.out.println("Sun: " + durationSun);
}
@Test
public void testJava8Base64Encode() throws Exception {
long before = System.currentTimeMillis();
java.util.Base64.Encoder encoder = java.util.Base64.getEncoder();
encodedJava8 = encoder.encode(randomBinaryData);
long after = System.currentTimeMillis();
durationJava8 = after-before;
System.out.println("Java8: " + durationJava8);
}
@Test
public void testCommonsBase64Encode() throws Exception {
long before = System.currentTimeMillis();
encodedCommons = Base64.encodeBase64(randomBinaryData);
long after = System.currentTimeMillis();
durationCommons = after-before;
System.out.println("Commons: " + durationCommons);
}
@AfterClass
public static void report() throws Exception {
//Sanity check
assertArrayEquals(encodedCommons, encodedJava8);
System.out.println(durationCommons*1.0/durationJava8);
}
}
原文：http://blog.csdn.net/spidercoco/article/details/23460231