各种编码转化中文乱码

今天无聊搞了一下中文不同编码间相互转化时,出现的乱码的样子,主要用了,GBK UTF-8 GB2312 ISO-8859-1,结果如下:

编码: GBK ==> GBK = 对啊这就是一个测试啊逗比
编码: GBK ==> UTF-8 = �԰������һ�����԰�����
编码: GBK ==> GB2312 = 对啊这就是一个测试啊逗比
编码: GBK ==> ISO-8859-1 = ¶Ô°¡Õâ¾ÍÊÇÒ»¸ö²âÊÔ°¡¶º±È

编码: UTF-8 ==> GBK = 瀵瑰晩杩欏氨鏄竴涓祴璇曞晩閫楁瘮
编码: UTF-8 ==> UTF-8 = 对啊这就是一个测试啊逗比
编码: UTF-8 ==> GB2312 = 瀵瑰��杩�灏辨��涓�涓�娴�璇�����姣�
编码: UTF-8 ==> ISO-8859-1 = 对啊这就是一个测试啊逗比

编码: GB2312 ==> GBK = 对啊这就是一个测试啊逗比
编码: GB2312 ==> UTF-8 = �԰������һ�����԰�����
编码: GB2312 ==> GB2312 = 对啊这就是一个测试啊逗比
编码: GB2312 ==> ISO-8859-1 = ¶Ô°¡Õâ¾ÍÊÇÒ»¸ö²âÊÔ°¡¶º±È

编码: ISO-8859-1 ==> GBK = ????????????
编码: ISO-8859-1 ==> UTF-8 = ????????????
编码: ISO-8859-1 ==> GB2312 = ????????????
编码: ISO-8859-1 ==> ISO-8859-1 = ????????????

所有由ISO-8859-1转的都是问号。
如果转为ISO-8859-1的都是一些好似几国语言合并的,而且TMD还有音符。
凡是UTF-8和GBXX的基本上都含有方块,或者有那么几个字是汉字,但是又TM认不出来。

代码很简单:

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
 
public class T {
     
    class Encoding {
        public String source;
        public String target;
        public Encoding(String source, String target) {
            this.source = source;
            this.target = target;
        }
         
    }
     
    public static void main(String[] args) throws UnsupportedEncodingException {
        T t = new T();
        List<Encoding> encodings = new ArrayList<T.Encoding>();
         
        encodings.add(t.new Encoding("GBK", "GBK"));
        encodings.add(t.new Encoding("GBK", "UTF-8"));
        encodings.add(t.new Encoding("GBK", "GB2312"));
        encodings.add(t.new Encoding("GBK", "ISO-8859-1"));
         
        encodings.add(t.new Encoding("UTF-8", "GBK"));
        encodings.add(t.new Encoding("UTF-8", "UTF-8"));
        encodings.add(t.new Encoding("UTF-8", "GB2312"));
        encodings.add(t.new Encoding("UTF-8", "ISO-8859-1"));
         
        encodings.add(t.new Encoding("GB2312", "GBK"));
        encodings.add(t.new Encoding("GB2312", "UTF-8"));
        encodings.add(t.new Encoding("GB2312", "GB2312"));
        encodings.add(t.new Encoding("GB2312", "ISO-8859-1"));
         
        encodings.add(t.new Encoding("ISO-8859-1", "GBK"));
        encodings.add(t.new Encoding("ISO-8859-1", "UTF-8"));
        encodings.add(t.new Encoding("ISO-8859-1", "GB2312"));
        encodings.add(t.new Encoding("ISO-8859-1", "ISO-8859-1"));
         
        String textContent = "对啊这就是一个测试啊逗比";
         
        for (Encoding encoding : encodings) {
            System.out.print("编码: " + encoding.source + " ==> " + encoding.target + "  =  ");
            System.out.println(new String(textContent.getBytes(encoding.source), encoding.target));
        }
    }
     
}