encodingfilter.java

这是一个简单的办公管理系统

package admin;

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.HttpServlet;

public class EncodingFilter extends HttpServlet implements Filter {
    /**
	 * 
	 */
	private static final long serialVersionUID = 956152995370712309L;
	private FilterConfig filterConfig;
    //Handle the passed-in FilterConfig
    public void init(FilterConfig filterConfig) throws ServletException {
        this.filterConfig = filterConfig;
    }

    //Process the request/response pair
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain filterChain) {
        String encode = request.getCharacterEncoding();
        try {
        	if (encode == null || !(encode.equals("GBK"))) {
        		request.setCharacterEncoding("GBK");
        	}
            filterChain.doFilter(request, response);
        } catch (ServletException sx) {
            filterConfig.getServletContext().log(sx.getMessage());
        } catch (IOException iox) {
            filterConfig.getServletContext().log(iox.getMessage());
        }
    }

    //Clean up resources
    public void destroy() {
    }
}