confilter.java

仿招聘网站 SSH框架 ajax功能

package com.chinahr.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;

/**
 * 一个简单的过滤器
 * @author arren
 * 日期：2008-07-04
 */
public class ConFilter implements Filter {

	private String encoding=null;
	private FilterConfig filterConfig=null;
	
	//	销毁方法
	public void destroy() {
		// TODO Auto-generated method stub
		this.encoding=null;
		this.filterConfig=null;
	}
	//	过滤处理方法
	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		// TODO Auto-generated method stub
		if (encoding!=null){
			//对请求进行编码设置
			arg0.setCharacterEncoding(encoding);
			arg1.setCharacterEncoding(encoding);
		}
		//将处理权转交给下一个处理器
		arg2.doFilter(arg0, arg1);
	}

	//初始化方法
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		this.filterConfig=arg0;
		this.encoding=filterConfig.getInitParameter("encoding");
	}

}