java中编码

 
 

  
  package com.imooc;
 
 
 
 

  
  

 
 
 
 

  
  public class EncodeDeo {
 
 
 
 

  
  

 
 
 
 

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

  
  		// TODO Auto-generated method stub
 
 
 
 

  
  		String s="慕课ABC";
 
 
 
 

  
  		byte[] bytes1=s.getBytes();
 
 
 
 

  
  		for (byte b : bytes1) {
 
 
 
 

  
  		//把字节转换成了int,以16进制的方式显示
 
 
 
 

  
  			System.out.print(Integer.toHexString(b&0xff)+" ");
 
 
 
 

  
  		}
 
 
 
 

  
  		System.out.println();
 
 
 
 

  
  		byte[] bytes2=s.getBytes("gbk");
 
 
 
 

  
  		for (byte b2 : bytes2) {
 
 
 
 

  
  			System.out.print(Integer.toHexString(b2&0xff)+" ");
 
 
 
 

  
  		}
 
 
 
 

  
  		System.out.println();
 
 
 
 

  
  		byte[] bytes3=s.getBytes("utf-8");
 
 
 
 

  
  		for (byte b2 : bytes3) {
 
 
 
 

  
  			System.out.print(Integer.toHexString(b2&0xff)+" ");
 
 
 
 

  
  		}
 
 
 
 

  
  		System.out.println();
 
 
 
 

  
  		byte[] bytes4=s.getBytes("utf-16be");
 
 
 
 

  
  		for (byte b2 : bytes4) {
 
 
 
 

  
  			System.out.print(Integer.toHexString(b2&0xff)+" ");
 
 
 
 

  
  		}
 
 
 
 

  
  		System.out.println();
 
 
 
 

  
  		/**
 
 
 
 

  
  		 * 当你的字节序列是某种编码时，这个时候想把字节变成字符串，也需要这种编
 
 
 
 

  
  		 * 码方式，否则会出现乱码
 
 
 
 

  
  		 */
 
 
 
 

  
  		//用项目默认的编码
 
 
 
 

  
  		String str1=new String(bytes4);
 
 
 
 

  
  		System.out.println(str1);
 
 
 
 

  
  		String str2=new String(bytes4,"utf-16be");
 
 
 
 

  
  		System.out.println(str2);
 
 
 
 

  
  	}
 
 
 
 

  
  

 
 
}
运行结果为
c4 bd bf ce 41 42 43 
c4 bd bf ce 41 42 43 
e6 85 95 e8 af be 41 42 43 
61 55 8b fe 0 41 0 42 0 43 
aU孇
慕课ABC