import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class CharsetFilter implements Filter {
private String encoding;
public void init(FilterConfig config) throws ServletException {
encoding = config.getInitParameter("requestEncoding");
if (encoding == null)
encoding = "UTF-8";
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
// Respect the client-specified character encoding
// (see HTTP specification section 3.4.1)
if (null == request.getCharacterEncoding())
request.setCharacterEncoding(encoding);
chain.doFilter(request, response);
}
public void destroy() {
}
...
...
<!--CharsetFilter start-->
<filter>
<filter-name>Charset Filter</filter-name>
<filter-class>filter.CharsetFilter</filter-class>
<init-param>
<param-name>requestEncoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Charset Filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--CharsetFilter end-->
...
...
