Question about the Chinese Character Set in Servlet response, servlet Chinese Character Set

Question about the Chinese Character Set in Servlet response, servlet Chinese Character Set

When using response in Servlet to output Chinese characters to the client browser, garbled characters may occur. The following is a summary:

There are two types of response output streams: one is byte stream output and the other is bytes stream output.

1. Output in byte streams:
1. garbled wood output by default
2. Use the setHeader method of response to set UTF-8 encoding without garbled characters.
3. Use the setContentType method of response to set UTF-8 encoding without garbled characters.
4. It is recommended to output numbers as strings.

2. output with streams:
1. Check the iso-8859-1 code table by default (SUN's Servlet specification requirements), client display garbled
2. Use the setHeader method of response to set UTF-8 encoding without garbled characters.
3. Use the setContentType method of response to set UTF-8 encoding without garbled characters.

 

Byte streams are output in the default encoding format:

1 public void doGet (HttpServletRequest request, HttpServletResponse response) 2 throws ServletException, IOException {3 // output Chinese data to the client using the default encoding in the byte stream, with 4 response garbled. setContentType ("text/html"); 5 6 String str = "Oh, huh, huh"; 7 OutputStream out = response. getOutputStream (); 8 out. write ("</br> <div align = \" center \ "style = \" font-size: 25px; color: red \ "> ". getBytes (); 9 10 out. write (str. getBytes (); 11 12 out. write ("</div> ". getBytes (); 13 out. close (); 14}

 

The byte stream is encoded as UTF-8 output:

1 public void doGet (HttpServletRequest request, HttpServletResponse response) 2 throws ServletException, IOException {3 4 // notify the client to check the UTF-8 code table 5 response. setContentType ("text/html; charset = UTF-8"); 6 7 // or: 8 // response. setHeader ("Content-Type", "text/html; charset = UTF-8"); 9 10 String str = "Oh Hahahaha"; 11 OutputStream out = response. getOutputStream (); 12 out. write ("</br> <div align = \" center \ "style = \" font-size: 25px; color: red \ "> ". getBytes (); 13 14 out. write (str. getBytes ("UTF-8"); 15 16 out. write ("</div> ". getBytes (); 17 out. close (); 18}

 

Byte stream output number:

1 public void doGet (HttpServletRequest request, HttpServletResponse response) 2 throws ServletException, IOException {3 response. setHeader ("Content-Type", "text/html; charset = UTF-8"); 4 5 int I = 98; 6 OutputStream out = response. getOutputStream (); 7 8 out. write ("</br> <div align = \" center \ "style = \" font-size: 25px; color: red \ ">" 9. getBytes (); 10 11 // out. write (I); the output is 12 13 // The output is 9814 out. write (I + ""). getBytes (); 15 16 out. write ("</div> ". getBytes (); 17 out. close (); 18}

 

The callback stream is encoded as UTF-8 and output:

1 public void doGet (HttpServletRequest request, HttpServletResponse response) 2 throws ServletException, IOException {3 // notify the client to check the UTF-8 code table 4 response. setContentType ("text/html; charset = UTF-8"); 5 // or: 6 // response. setHeader ("Content-Type", "text/html; charset = UTF-8"); 7 8 String str = ""; 9 PrintWriter out = response. getWriter (); 10 out. write ("</br> <div align = \" center \ "style = \" font-size: 25px; color: red \ "> "); 11 12 out. write (str); 13 14 out. write ("</div>"); 15 out. flush (); 16 out. close (); 17}