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Êý¾Ý¿âÂÒÂë:
UTF-8¶ÔÖÐÎÄÓÃ3¸ö×Ö½ÚÀ´±íʾ
String s =”·ÉÏè”;
byte[] utf8 = s.getBytes(“utf-8”);//»ñµÃutf-8±àÂëµÄ×Ö½ÚÖµ
System….(new String(utf8,”gbk”);//ÓÃGBK±àÂë¸ñʽ¶ÔUTF-8±àÂë¸ñʽµÄ×Ö½ÚÊý×é½øÐнâÂ룬½«²úÉúÂÒÂë¡£
 
²é¿´Êý¾Ý¿âµÄ×Ö·û¼¯
show variables like 'character\_set\_%';
show variables like 'collation_%';
--ÉèÖÃÊý¾Ý¿â×Ö·û±àÂë
set names 'GBK'
alter database payment character set GBK;
create database mydb character set GBK;
set character_set_client=gbk;
set character_set_connection=gbk;
set character_set_database=gbk;
set character_set_results=gbk;
set character_set_server=gbk;
set character_set_system=gbk;
set collation_connection=gbk;
set collation_database=gbk;
set collation_server=gbk;
Servlet½â¾ö·þÎñÆ÷¶Ë´«¸ø¿Í»§¶Ë²úÉúµÄÂÒÂëÎÊÌâ
Ìí¼ÓGB2312±àÂë
Ïò·þÎñÆ÷Êä³öÖÐÎÄʱ³öÏÖÂÒÂë»ò“£¿”×î³£ÓõĽâ¾ö·½°¸£º
service(HttpServletRequest request,HttpServletResponse response){
String s =” ÖÐÎÄ”;
response.setContentType(“text/html;charset=utf-8”);
PrintWriter out = response.getWriter();
out.println(s);
}
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service(){
String s = “ÖÐÎÄ”;
PrintWriter out = response.getWriter();
response.setHeader(“Content-Type”,”text/html;charset=utf-8”);//ÉèÖÃConten-TypeÏìӦͷ
out.println(new String(s.getByte(“utf-8”),”iso-8859-1”));
}//»ñµÃutf-8±àÂëµÄ×Ö½ÚÊý×éºó£¬½«Æä°´Ô­Ñù±£´æÔÚString¶ÔÏóÖÐ
}
1struts:      
String name =request.getParameter("username");
      String username;
      try {
username=new String(request.getParameter("username").getBytes("ISO-8859-1"), "gb2312" );
 
username = new String(username.getBytes(“ISO8859-1”),”GBK”);
 
2 struts2
HttpServletRequest request=ServletActionContext.getRequest();String
str=new Strin


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