persian encoding (utf-8) for jsp page in eclipse in Eclipse IDE

Question

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>
    <body>
        <form action="index.jsp" >
            <input type="text" name="txt">
            <input type="submit" name="btn" value="Enter">
        </form>
        <%if (request.getParameter("txt")!=null) out.print(request.getParameter("txt")); %>
    </body>
</html>

When load this page and enter a latin word like Sasan, then it redisplays Sasan which is OK. But when enter a Persian word like ساسان, then it redisplays Ø³ÙØ§Ù instead of ساسان.

How is this caused and how can I solve it?

score 0 · Answer 1 · edited Jun 20 '20 at 09:12

Your form is sending a GET request. The entire request URI including the GET query string is processed by the servletcontainer. You need to set the request URI encoding in the servletcontainer configuration. It's unclear which one you're using, but in case of for example Tomcat, you need to open /conf/server.xml, locate the <Connector> element and add URIEncoding attribute to it with a value of UTF-8.

<Connector ... URIEncoding="UTF-8">

Other servletcontainers have their own configuration setting for this.

Note that when you are sending a POST request instead, then the entire request body is processed by the servlet API instead. You need to set the request body encoding by ServletRequest#setCharacterEncoding() before you ever get the first parameter.

request.setCharacterEncoding("UTF-8");

The common practice is to perform this job in a Filter.

I'd also change your JSP pageEncoding from utf-8 to UTF-8, just to be consistent.

persian encoding (utf-8) for jsp page in eclipse in Eclipse IDE

2 Answers2

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