charsetencodingfilter.java

java大型企业DRP系统源码带sql数据库

package com.bjsxt.drp.util.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;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 用filter完成中文编码
 * @author Administrator
 *
 */
public class CharsetEncodingFilter implements Filter {
	
	private String encoding = "GB18030";  
	
	public void destroy() {
		System.out.println("CharsetEncodingFilter destroy");
	}

	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
			FilterChain filterChain) throws IOException, ServletException {
			HttpServletRequest request = (HttpServletRequest)servletRequest;
			HttpServletResponse  response = (HttpServletResponse)servletResponse;
			request.setCharacterEncoding(encoding);
			filterChain.doFilter(request, response);
	}

	public void init(FilterConfig filterConfig) throws ServletException {
		System.out.println("CharsetEncodingFilter init");
		this.encoding = filterConfig.getInitParameter("encoding");	
		System.out.println("encoding=" + this.encoding);
	}

}