myfilter.java

本代码是一个权限管理系统源代码

package com.seavision.PermissionManage.help;

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 com.seavision.PermissionManage.help.HibernateUtil;

/**
 * <p>
 * Title: 中文问题
 * </p>
 * <p>
 * Description: 中文问题
 * </p>
 * <p>
 * Copyright: Copyright (c) 2002 writeonce
 * </p>
 * <p>
 * Company:
 * </p>
 *
 * @author writeonce
 * @version 1.0
 */
public class MyFilter implements Filter
{
	static{

		new HibernateUtil();

	}

	protected String encoding = "GBK";
	protected FilterConfig filterConfig = null;

	public void setFilterConfig(FilterConfig config)
	{
		this.filterConfig = config;
	}

	public FilterConfig getFilterConfig()
	{
		return filterConfig;
	}

	public void destroy()
	{
		this.encoding = null;
		this.filterConfig = null;
	}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException
	{
		// Select and set (if needed) the character encoding to be used
		String encoding = selectEncoding(request);
		if (encoding != null)
		{
			request.setCharacterEncoding(encoding);
			//System.out.println("encoding:"+encoding);
		}
		// Pass control on to the next filter
		try {
		   chain.doFilter(request, response);
	   } finally {
		   HibernateUtil.closeSession();
	   }
	}

	public void init(FilterConfig filterConfig) throws ServletException
	{
		this.filterConfig = filterConfig;
		this.encoding = filterConfig.getInitParameter("encoding");

	}

	protected String selectEncoding(ServletRequest request)
	{
		return (this.encoding);
	}
}