Recently wrote a ajax, testing has been no problem, the results into other computers, which have three to five computer Display garbled, the enquiries about, there is a conclusion, very good! Ajax return to the original values are utf-8 decoder , 

  AJAX Chinese issues fall into two broad categories: 
  1) Send in the path of Chinese parameters in the server parameter values of the receiver is garbled 

  For example: 
  Var url = "a.jsp? Name = Li"; 
  XmlHTTP.open ( "post", url, true); 
  The solution: 
  Javascript provided by the use of the escape () or encodeURI () method 
  For example: 
  Client: 
  Var url = "a.jsp? Name = Li"; 
  Url = encodeURI (url); 
  Url = encodeURI (url); / / twice, it is key to [specify why, I do not know] 
/********************************************/
  It was also written var url = "a.jsp? Name = escape (" Li ")"; 
  EncodeURI similar functions and methods. 
/********************************************/
  XmlHTTP.setrequestheader ( "cache-control", "no-cache"); 
  XmlHTTP.setrequestheader ( "Content-Type", "application / x-www-form-urlencoded"); 
  XmlHTTP.setrequestheader ( "contentType", "text / html; charset = uft-8") / / designated sent the data coding format 
  XmlHTTP.open ( "post", url, true); 
  Server: 
  String name = request.getParameter ( "name"); 
  Name = java.net.URLDecoder.decode ( "name", "UTF-8"); 
  2) to return the responseText responseXML or the value of the presence of Chinese is garbled 
  Cause: AJAX in the receiving responseText responseXML or the value of time in accordance with the UTF-8 format decoding, if the server of the data is not sent UTF-8 format, or to receive responseText responseXML value is likely to hash. 
  The solution: send data in the server specified format: 
  In jsp file: 
  Response.setContentType ( "text / text; charset = UTF-8 ");// txt is the return of text files 
  Or 
  Response.setContentType ( "text / xml; charset = UTF-8 ");// return to the xml 

  Aggregate: 1) ajax the default data format for utf-8, the use of javascript provide escape () or encodeURI () method. Reception in the server when to use UTF java.net.URLDecoder.decode (""," -8 ") method for decoding. 
  2) xtmlhttp return of the default character encoding data is utf-8, so the client to the server when sending data, but also use utf-8 encoding 
  If the hash is still unresolved problems, then you try to jsp, htm, java document with UTF-8 encoding format. 
  In short: after-use interactive data utf-8 encoded on the trip. 

  3) If asp beginning to show normal refresh hash, and the following statements 

  <% @ LANGUAGE = "VBSCRIPT" CODEPAGE = "936"%> 

  <meta Http-equiv="Content-Type" content="text/html;charset=gb2312"> 

<%
  Response.Charset = "GB2312" 
  Session.CodePage = 936%>