编码解码

/*

  * 编码：字符串变成字节数组

  * 解码：字节数组变字符串

  * 

  * String-->byte[];str.getBytes(charsetName);

  * 

  * byte[]-->String;new String(byte[],charsetName)

  */

 public class EncodeTest {

 public static void main(String[] args) throws IOException {

String s="你好";

byte[] b1=s.getBytes("GBK");//编码

System.out.println(Arrays.toString(b1));

String s1=new String(b1,"ISO8859-1");//错误解码

System.out.println(s1);

//对s1进行ISO8859-1编码

byte[] b2=s1.getBytes("ISO8859-1");//编码

String s2=new String(b2,"gbk");


 }



 }