推荐，Java Emoji Converter（Emoji表情转换工具）

package com.comwer;
import com.github.binarywang.java.emoji.EmojiConverter;
import junit.framework.Assert;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
 * Unit test for simple App.
 */
public class AppTest extends TestCase {
  private EmojiConverter emojiConverter = EmojiConverter.getInstance();
  /**
   * Create the test case
   *
   * @param testName
   *            name of the test case
   */
  public AppTest(String testName) {
    super(testName);
  }
  /**
   * @return the suite of tests being tested
   */
  public static Test suite() {
    return new TestSuite(AppTest.class);
  }
  /**
   * Rigourous Test :-)
   */
  public void testApp() {
    String str = "  An ??awesome ??string with a few ??emojis!";
      String alias = this.emojiConverter.toAlias(str);
      String html = this.emojiConverter.toHtml(str);
      System.out.println(str);
      System.out.println(html);
      System.out.println("EmojiConverterTest.testToAlias()=====>");
      System.out.println(alias);
      Assert.assertEquals(
          ":no_good: :ok_woman: :couple_with_heart:An :smiley::grinning:awesome :smiley::smiley:string with a few :smiley::wink:emojis!",
          alias);
    assertTrue(true);
  }
}