encodecharsetfilter.java

这是我自己做的一个选课系统

package org.chooseClass.filter;

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 EncodeCharsetFilter implements Filter{

	String encoding = null;
	//FilterConfig Configer = null;

	public void destroy() {
	   // TODO Auto-generated method stub
	   this.encoding = null;
	   //this.Configer = null;
	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
	    FilterChain arg2) throws IOException, ServletException {
	   // TODO Auto-generated method stub
		try{
	   if (encoding != null) {
	    arg0.setCharacterEncoding(encoding);
	    arg1.setCharacterEncoding(encoding);
	   }
		}catch(Exception e){
		   System.out.print(e);
	   }
	   
	   arg2.doFilter(arg0, arg1);
	}

	public void init(FilterConfig arg0) throws ServletException {
	   // TODO Auto-generated method stub
	   //this.Configer = arg0;
	   this.encoding = arg0.getInitParameter("Encoding");
	}

}