encodingfilter.java

用java实现的一个论坛,可以供大家参考

package liuxiaobo.filter;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class EncodingFilter implements Filter {
  protected FilterConfig filterConfig;

  public void init(FilterConfig config) {
    this.filterConfig = config;
  }

  public void destroy() {
    this.filterConfig = null;
  }
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
      throws IOException, ServletException{
    String targetEncoding ="ISO8859-1";
    targetEncoding = this.filterConfig.getInitParameter("encoding");
    HttpServletRequest hrequest = (HttpServletRequest)request;
    hrequest.setCharacterEncoding(targetEncoding);
    filterChain.doFilter(request, response);
  }
}