字符集相关

 

 

 

例：

package com.study;

import java.io.UnsupportedEncodingException;

/**
* 测试字符集
* @author Administrator
*
*/

public class ContenDecode {
public static void main(String[] args) throws UnsupportedEncodingException {
String msg = "不i测验完毕";
//编码字节数组
byte[] datas = msg.getBytes();
System.out.println(datas.length);

//编码其他字符,可以随意指定字符集
datas = msg.getBytes("UTF-8");
System.out.println(datas.length);



//解码：字符串
String mgs = new String(datas,0,datas.length,"UTF-8");
System.out.println(mgs);

//乱码原因：
//1.字节数不够：
String mmm = new String(datas,0,datas.length-2,"UTF-8");
System.out.println(mmm);

//2.字符集不统一
mgs = new String(datas,0,datas.length,"GBK");
System.out.println(mgs);

}
}