Java uses a platform-independent Unicode, Java reads a string from a BYTE stream to transform the platform-related Byte into the platform-independent Unicode string. At the time of output, Java will turn the Unicode string into a platform-related BYTE stream, if a Unicode character does not exist on a platform, will output one '?'. A Chinese character encoded in GB2312 is 16, while a Chinese character in UTF8 is 24. If the page is used to encode UTF-8, how to convert to GB2312? Reference: TEST1.HTM
Untitled Document </ title> <meta http-equiv = "content-type" content = "text / html; charSet = UTF-8"></p>
<p></ hEAD></p>
<p><body> <p> <a href="test2.jsp?abc=a playb", ah, ah, ah, ah, "</a </ p> </ body> </ html> test2.jsp <% @ Page ContentType = "Text / HTML; Charset = UTF-8" Language = "Java" Import = "java.sql. *" ErrorPage = ""%> <html> <head> <title> Untitled Document </ Title> </ hEAD></p>
<p><body> <% // string Tofield = new string ("abc"). getBytes ("UTF-8"), "GB2312"); String S = Request.getParameter ("abc"); StringBuffer SB = new stringbuffer (); for (int i = 0; i <s.Length (); i ) {char c = s.charat (i); switch (c) {case ' ': sb.append ('' Break; Case '%': Try {sb.append ((char) Integer.Parseint (s.Substring (i 1, i 3), 16));} catch (NumberFormatexcection E) {throw new illegalargumentException );} I = 2; break; default: sb.append (c); break;}} // undo convers}} // undo conversion to external encoding string result = sb.tostring (); byte [] InputBytes = Result.getbytes ("8859_1 "); Out.println (New String (INPUTBYTES," UTF-8 ")))))));%> </ body> </ html></p></div><div class="text-center mt-3 text-grey">
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