package com.baifubao.supergw.common.util;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang.UnhandledException;
import org.junit.Test;
import org.junit.Assert;
import java.io.UnsupportedEncodingException;
import static org.junit.Assert.assertTrue;
public class Base64Test {
@Test
public void diffCharset() {
String msg = "中文编码base64后屏蔽字符集";
try {
// utf-8编码、base64编码、utf-8解码
String base64msg = Base64.encodeBase64String(msg.getBytes("utf-8"));
System.out.println("base:" + base64msg);
// gbk 编码
byte[] deBase64 = base64msg.getBytes("gbk");
// utf-8 解码
String utf8msg = new String(deBase64, "utf-8");
System.out.println("utf8:" + utf8msg);
assertTrue(base64msg.equals(utf8msg));
// 原文使用gbk解码
String gbk = new String(Base64.decodeBase64(base64msg.getBytes()),"gbk");
// 非ASCII字符编码、解码使用字符集不一致会导致乱码
// 而BASE64编码字符都是ASCII表内,使用不一致的字符集编解码也不会有乱码
// 因为ASCII字符很多字符集是兼容的
System.out.println(gbk);
}catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}