UTF-8 encoding and http parameters

Question

I am doing a simple ajax call with the YahooUI Javascript library as follows:

YAHOO.util.Connect.setForm(\'myform\');
YAHOO.util.Connect.asyncRequest(\'POST\         


        

Answer 1

Since you are using a POST query, URIEncoding="UTF-8" is not applicable here. You need to set a filter to tell Tomcat that your request encoding is UTF-8. You may use, for example, a Spring's CharacterEncodingFilter (usage, javadoc). Other implementations of such filters can also be found.

Answer 2

Yes, here is one:

package com.lfantastico.web;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class EncodingFilter implements Filter {
    private String encoding = "UTF-8";

    public void destroy() {
    }

    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding(encoding);
        response.setCharacterEncoding(encoding);
        chain.doFilter(request, response);
    }

    public void init(FilterConfig config) throws ServletException {
        if (config.getInitParameter("encoding") != null) {
            encoding = config.getInitParameter("encoding");
        }
    }
}