Java编码转换-内存中字符串编码转换实例
Java编程时会遇到很多字符集编码转换的问题，当读取的字符在内存中如何执行编码转换？下面给出一个实例
- import java.nio.ByteBuffer;
- import java.nio.charset.Charset;
- public class MainClass {
- public static void main(String[] argv) throws Exception {
- String input = ”\u00bfMa\u00f1ana?”;
- // The list of charsets to encode with
- String[] charsetNames = { ”US-ASCII”, ”ISO-8859-1″, ”UTF-8″, ”UTF-16BE”, ”UTF-16LE”, ”UTF-16″,
- // ”X-ROT13″ // This requires META-INF/services
- };
- for (int i = 0; i < charsetNames.length; i++) {
- doEncode(Charset.forName(charsetNames[i]), input);
- }
- }
- private static void doEncode(Charset cs, String input) {
- ByteBuffer bb = cs.encode(input);
- System.out.println(“Charset: ” + cs.name());
- System.out.println(“ Input: ” + input);
- System.out.println(“Encoded: ”);
- for (int i = 0; bb.hasRemaining(); i++) {
- int b = bb.get();
- int ival = ((int) b) & 0xff;
- char c = (char) ival;
- // print index number
- System.out.print(“ ” + i + ”: ”);
- // print the hex value of the byte
- System.out.print(Integer.toHexString(ival));
- System.out.println(“ (“ + c + ”)”);
- }
- }
- }
java
