filter

package com.etc.commons;
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;

/**
* 采用Filter统一处理字符集
* @author Ronaldinho
*
*/
public class CharsetEncodingFilter implements Filter {

private String endcoding;

@Override
public void destroy() {
}

@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {


//设置web.xml中配置的字符集
request.setCharacterEncoding(endcoding);

//继续执行
chain.doFilter(request, response);
}

@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.endcoding = filterConfig.getInitParameter("endcoding");
}

}

filter

原文：http://www.cnblogs.com/a-n-dy/p/5767173.html