关于编码过滤的问题，这里使用在web.xml中添加过滤器的方法！

来源：互联网发布：2018年中国经济知乎编辑：程序博客网时间：2024/04/30 19:45

首先在WEB.XML中添加过滤器

   <filter>
  <filter-name>EncodingFilter</filter-name>
  <filter-class>com.game.util.EncodingFilter</filter-class>
  <init-param>
   <param-name>encoding</param-name>
   <param-value>utf-8</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>EncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

下面的是过滤类

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;

public class EncodingFilter implements Filter{

private FilterConfig config;

private String targetEncoding="ISO-8859-1";

public void destroy() {

config=null;

}

public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {

    request.setCharacterEncoding(targetEncoding);
       filterChain.doFilter(request, response);


}

public void init(FilterConfig arg0) throws ServletException {
this.config=arg0;
this.targetEncoding=config.getInitParameter("encoding");
}

}