setcharencode.java

来自「酒店管理系统 用sh编写的酒店管理系统 毕业设计用的」· Java 代码 · 共 48 行

package com.chen.filter.encodefilter;

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 SetCharEncode implements Filter {

	protected String encoding = null; 
	protected FilterConfig filterConfig = null; 
	protected boolean ignore = true; 
	public void destroy() { 
	this.encoding = null; 
	this.filterConfig = null; 
	} 
	public void doFilter(ServletRequest request, ServletResponse response, 
	FilterChain chain) 
	throws IOException, ServletException { 
	String encoding = selectEncoding(request); 
	request.setCharacterEncoding(encoding); 
	response.setContentType("text/html;charset="+encoding); 
	chain.doFilter(request, response); 
	} 
	public void init(FilterConfig filterConfig) throws ServletException { 
	this.filterConfig = filterConfig; 
	this.encoding = filterConfig.getInitParameter("encoding"); 
	String value = filterConfig.getInitParameter("ignore"); 
	if (value == null) 
	this.ignore = true; 
	else if (value.equalsIgnoreCase("true")) 
	this.ignore = true; 
	else if (value.equalsIgnoreCase("yes")) 
	this.ignore = true; 
	else 
	this.ignore = false; 
	} 
	protected String selectEncoding(ServletRequest request) 
	{ 
	return (this.encoding); 
	} 

}