package com.DocSystem.test;

class CharsetTest 
{ 
 public static void main(String[] args) 
 { 
 System.out.println("This is test app");
 String str = "便签";
 	String utf8_str = "";
 	String gbk_str = "";
 	String gb2312_str = "";
 	String iso8859_str = "";
 	String asc_str = "";
 	String utf16_str = "";
 	String gb18030_str = "";

 	//注意:字符编码转换之后未必你能转换回来,比如将中文转成ascii码会丢信息,所以将无法还原,这里的测试对于ascii和iso8859会出现乱码问题
 try {
 	//将中文字符串按指定格式转成字节流
 	byte[] buff = str.getBytes();
 	byte[] utf8_buff = str.getBytes("UTF-8");
 	byte[] gbk_buff = str.getBytes("GBK"); 	
 	byte[] gb2312_buff = str.getBytes("GB2312"); 	
 	byte[] iso8859_buff = str.getBytes("ISO-8859-1"); 	
 	byte[] asc_buff = str.getBytes("ASCII"); 	
 	byte[] utf16_buff = str.getBytes("UTF-16"); 	
 	byte[] gb18030_buff = str.getBytes("GB18030"); 	
 	
 	//将字节流按默认格式转成字符串
 	str = new String(buff);
 	utf8_str = new String(utf8_buff);
 	gbk_str = new String(gbk_buff);
 	gb2312_str = new String(gb2312_buff);
 	iso8859_str = new String(iso8859_buff);
 	asc_str = new String(asc_buff);
 	utf16_str = new String(utf16_buff);
 	gb18030_str = new String(gb18030_buff);

 	System.out.println("str:" + str);
 	System.out.println("utf8_str:" + utf8_str);
 	System.out.println("gbk_str:" + gbk_str);
 	System.out.println("gb2312_str:" + gb2312_str);
 	System.out.println("iso8859_str:" + iso8859_str);
 	System.out.println("asc_str:" + asc_str);
 	System.out.println("utf16_str:" + utf16_str);
 	System.out.println("gb18030_str:" + gb18030_str);
 	
 	//将字节流按对应格式转成字符串
 	str = new String(buff);
 	utf8_str = new String(utf8_buff, "UTF-8");
 	gbk_str = new String(gbk_buff, "GBK");
 	gb2312_str = new String(gb2312_buff, "GB2312");
 	iso8859_str = new String(iso8859_buff, "ISO-8859-1");
 	asc_str = new String(asc_buff, "ASCII");
 	utf16_str = new String(utf16_buff, "UTF-16");
 	gb18030_str = new String(gb18030_buff, "GB18030");


 	System.out.println("str:" + str);
 	System.out.println("utf8_str:" + utf8_str);
 	System.out.println("gbk_str:" + gbk_str);
 	System.out.println("gb2312_str:" + gb2312_str);
 	System.out.println("iso8859_str:" + iso8859_str);
 	System.out.println("asc_str:" + asc_str);
 	System.out.println("utf16_str:" + utf16_str);
 	System.out.println("gb18030_str:" + gb18030_str);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
 } 
}