charsetfilter.java

来自「oa办公系统」· Java 代码 · 共 54 行

/**
 * FileName:CharsetFilter.java,v 1.0 created in 2008-11-6 上午10:06:56
 * Created by sean
 * Copyright (c) 2008 wanczy
 * All Rights Reserved.
 */
package cn.jx.ecjtu.oa.common.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;

/**
 * 字符集处理过滤器。
 * @author sean
 * @version $Revision: 1.1 $
 * @since 1.0
 */
public class CharsetFilter implements Filter {
	private String charset;
	/* (non-Javadoc)
	 * @see javax.servlet.Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub

	}

	/* (non-Javadoc)
	 * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
	 */
	public void doFilter(ServletRequest req, ServletResponse resp,
			FilterChain chain) throws IOException, ServletException {
		req.setCharacterEncoding(charset);//设置服务端解析用字符集，对get请求方式不生效，doGet要修改tomcat配置，所以传递中文的时候，尽量采用post方式
		resp.setContentType("text/html;charset=gbk");//设置服务端反馈信息采用的字符集，注意，传递其他MIME类型数据的时候，请自行在servlet中设置修改。
		chain.doFilter(req,resp);//将请求处理传递给下一环节
	}
	
	/* (non-Javadoc)
	 * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
	 */
	public void init(FilterConfig config) throws ServletException {
		charset=config.getInitParameter("charset");
		if(charset==null) charset="gbk";

	}

}