encodingfilter.java

一个用struts tiles的在线影院web系统

package com.blue.web.common.signon;

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;

/**
 * 正确处理程序中编码问题
 * @author Lucifer
 *
 */
public class EncodingFilter implements Filter {

	private FilterConfig config	= null;
	private String defaultEncode	= "UTF8";
	
	public void init(FilterConfig config) throws ServletException {
		this.config = config;
		if (config.getInitParameter("charset") != null) {
			defaultEncode = this.config.getInitParameter("charset");
		}
		System.out.println("defaultEncode\t= " + defaultEncode);
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		ServletRequest currentRequest = request;
		currentRequest.setCharacterEncoding(defaultEncode);
		chain.doFilter(currentRequest, response);

		if (request instanceof HttpServletRequest) {
			String url = ((HttpServletRequest) request).getRequestURI();
			if (url.endsWith(".jsp") || url.endsWith(".do") || url.endsWith(".vurl"))
				System.out.println("EncodingFilter.doFilter() : ip=" + request.getRemoteAddr() + ",url=" + url);
		}// else
		//	System.out.println("EncodingFilter.doFilter()...");
	}
	
	public void destroy() {
		this.config = null;
	}
}