以下测试在转换为Latin1时失败,因为非法字符被替换为值为63(问号)的字节。问题在于这些字符最好应该引起某些异常...
@Test
public void testEncoding() throws UnsupportedEncodingException {
final String czech = "Řízeček a šampáňo a žízeň";
// okay
final byte[] bytesInLatin2 = czech.getBytes("ISO8859-2");
// different bytes, but okay
final byte[] bytesInWin1250 = czech.getBytes("Windows-1250");
// different bytes, but okay
final byte[] bytesInUtf8 = czech.getBytes("UTF-8");
// nonsense; Ř,č,... are not in Latin1 code set!!!
final byte[] bytesInLatin1 = czech.getBytes("ISO8859-1");
System.out.println(Arrays.toString(bytesInLatin2));
System.out.println(Arrays.toString(bytesInWin1250));
System.out.println(Arrays.toString(bytesInUtf8));
System.out.println(Arrays.toString(bytesInLatin1));
System.out.flush();
final String latin2 = new String(bytesInLatin2, "ISO8859-2");
final String win1250 = new String(bytesInWin1250, "Windows-1250");
final String utf8 = new String(bytesInUtf8, "UTF-8");
final String latin1 = new String(bytesInLatin1, "ISO8859-1");
Assert.assertEquals("latin2", czech, latin2);
Assert.assertEquals("win1250", czech, win1250);
Assert.assertEquals("utf8", czech, utf8);
Assert.assertEquals("latin1", czech, latin1); // this test will fail!
}
由于Java的行为,许多情况下数据最终会被损坏。是否有可用的库来验证字符串是否可以使用某种编码进行编码?
CharSequence
不能使用UTF-8编码? - fge