CODEWITHSUNDEEP
javaservletsutf-8internationalization
GyRo
GyRo

Reputation: 2646

how to send through ServletOutputStream characters in UTF-8 encoding

My servlet code looks like that:

response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
ServletOutputStream out = response.getOutputStream();
out.println(...MY-UTF-8 CODE...);

...

then I get the error:

java.io.CharConversionException: Not an ISO 8859-1 character: ש
 javax.servlet.ServletOutputStream.print(ServletOutputStream.java:89)
 javax.servlet.ServletOutputStream.println(ServletOutputStream.java:242)
 rtm.servlets.CampaignLogicServlet.doPost(CampaignLogicServlet.java:68)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

How can I switch the charset of Servlet's outputstream ???

Upvotes: 64

Views: 67820

Answers (6)

Supercoder
Supercoder

Reputation: 1204

In the case where you have to Request Dispatcher from a doFilter to @WebServlet("/anywebpage") which should only contain the PrintWriter out = response.getWriter();

        String erpg = "anywebpage";
        response.setContentType("text/html; charset=UTF-8");
        RequestDispatcher rd = request.getRequestDispatcher(erpg);
        rd.include(request, response);

You should NOT require to declare the following line: response.setCharacterEncoding("UTF-8");

Instead, make sure to include the following before the PrintWriter out = response.getWriter(); instruction:

response.setContentType("text/html; charset=UTF-8");

Upvotes: 2

이대범
이대범

Reputation: 11

// HTML Output code list
StringBuffer select_code = new StringBuffer();
List<con_element> ccc = codeService.code_select(code);

for(int i=0;i<ccc.size();i++){
    select_code.append("<option value='" + ccc.get(i).getCce_num() + "'>" + ccc.get(i).getCce_hname() + "</option>" );
}

response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
response.getWriter().print( select_code );

Upvotes: 0

Brian Agnew
Brian Agnew

Reputation: 272247

I think you want to use getWriter() instead. That will accept a string and encode it, whereas the output stream is for handling binary data.

From the doc:

Returns a PrintWriter object that can send character text to the client. The character encoding used is the one specified in the charset= property of the setContentType(java.lang.String) method, which must be called before calling this method for the charset to take effect.

Either this method or getOutputStream() may be called to write the body, not both.

Here's the change of the code:

response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.println(...MY-UTF-8 CODE...);

Upvotes: 131

Allen
Allen

Reputation: 140

public void output(String jsonStr, HttpServletResponse response) throws IOException {
    response.setContentType("text/html;charset=UTF-8;");
    response.setCharacterEncoding("UTF-8");
    ServletOutputStream out = response.getOutputStream();
    out.write(jsonStr.getBytes("UTF-8"));
    out.flush();
    out.close();
}

Upvotes: 0

quagmired
quagmired

Reputation: 131

This also works:

ServletOutputStream out = response.getOutputStream();
out.write("MY-UTF-8 CODE".getBytes("UTF-8"));

Upvotes: 13

Kim
Kim

Reputation: 1010

The same case happen to me before and i tried to add-on one line on top of the PrintWriter and it is work.

response.setContentType("text/html; charset=GBK");
PrintWriter out = response.getWriter();

Upvotes: 4

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