setencodingfilter.java

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package xiong.gang.servlet;

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;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SetEncodingFilter implements Filter {

	public void destroy() {

	}

	public void doFilter(ServletRequest req, ServletResponse res,
			FilterChain chain) throws IOException, ServletException {
		HttpServletRequest request=(HttpServletRequest)req;
		HttpServletResponse response=(HttpServletResponse)res;
		request.setCharacterEncoding("gbk");
//		if(request.getSession().getAttribute("sname")==null){
//			response.sendRedirect(request.getContextPath()+"/login.jsp");
//		}
			chain.doFilter(request, response);
	}

	public void init(FilterConfig arg0) throws ServletException {
		
	}

}