encodingfilter.java

这是一个用jsp+Oracle开发的联系人客户关系管理系统！

package com.test;

import javax.servlet.FilterChain;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import javax.servlet.FilterConfig;

public class EncodingFilter implements Filter
{
	private String targetEncoding = "gb2312";
	protected FilterConfig filterConfig;

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

	public void doFilter(ServletRequest srequest,ServletResponse sresponse,FilterChain chain) throws IOException,ServletException
	{
		HttpServletRequest request = (HttpServletRequest)srequest;
		request.setCharacterEncoding(targetEncoding);//把请求用指定的方式编码
		chain.doFilter(srequest,sresponse);//把处理发送到下一个过滤器
	}

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

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