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Prepare a Web page first
<meta http-equiv= "Content-type" content= "text/html; CHARSET=GBK "/><title> test code </title><body><form id=" Form1 "Name=" Form1 "method=" POST "action= "Http://localhost:8080/TestServer/Receive" > <label> <input type= "text" name= "name"/> </label> <label> <input type= "Submit" Name= "SBBT" value= "Submit"/> </label></ Form></body>Input Chinese text, name "He Jinbin" to submit
Submit to Servelt, output the content received with Servelt
protected voidDoPost (httpservletrequest request, httpservletresponse response)throwsservletexception, IOException {inputstream input=Request.getinputstream (); Bufferedinputstream INPUTBF=Newbufferedinputstream (input); byte[] buf =New byte[1024]; intLength =Inputbf.read (BUF); byte[] Recevivedata =New byte[length]; System.arraycopy (BUF,0, Recevivedata, 0, length); System.out.println ("Received:" +NewString (Recevivedata));//System.out.println (Request.getparameter ("name"));}The output is as follows:
Roger: Name=%ba%ce%bd%f5%b1%f2&sbbt=%cc%e1%bd%bbTry to turn "He Jinbin" into a 16-input output by pressing GBK.
Ignoring the previous ' F ', you will find that the content of the Servelt is: Chinese after the GBK code transcoding, with 16 binary logo, and in front with "%" to make a distinction
Continue to modify the meta-information of the Web page and replace "GBK" with "Utf-8"
<http-equiv= "Content-type" Content= "text/html; Charset=utf-8" />The output is as follows:
Roger: Name=%e4%bd%95%e9%94%a6%e5%bd%ac&sbbt=%e6%8f%90%e4%ba%a4The obvious name is followed by 9 characters, which is a 16 binary notation after the UTF-8, and the '% ' component is added after the word.
The whole process is as follows
1. Convert Chinese to bytes according to the character encoding in mate
2, byte plus percent sign and 16 binary
(1, 2 equivalent of Java.net.URLEncoder.encode (content, "Utf-8"))
3. Carry out the transfer
4, the Web container is decoded, which is equivalent to calling
Related code in Tomcat
Org.apache.tomcat.lite.http.HttpRequest 672 Lines
Try { Parameters.Add (UrlDecode (tmpname, enc), UrlDecode (tmpvalue, ENC)); Catch (IOException e) { // ignored }What is the process of submitting web pages in Chinese to web containers ....
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