codefilter.java

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package com.xxfb.VIISFilter;

//由于是后加的 所以此过滤器只应用到了 所有的JSP中 没有应用到前面的servlet中，请注意
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 CodeFilter implements Filter {
	String code="";
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		code=arg0.getInitParameter("code");
	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpServletResponse response= (HttpServletResponse) arg1;
		
		request.setCharacterEncoding(code);
		response.setCharacterEncoding(code);
		arg2.doFilter(request,response);  
	}

	public void destroy() {
		// TODO Auto-generated method stub

	}

}