使用EncodingFilter过滤器来完成统一编码

来源：互联网发布：mac apache php 编辑：程序博客网时间：2024/05/16 17:07

在web开发中，中文乱码是一个比较麻烦的事情，使用过滤器来统一编码是比较好的办法。

1.EncodingFilter过滤器的主要代码如下:

public class EncodingFilter implements Filter{
@Override
public void destroy() {
  // TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
   FilterChain filterChain) throws IOException, ServletException {
  String encoding=filterConfig.getServletContext().getInitParameter("encoding");
  request.setCharacterEncoding(encoding);
  filterChain.doFilter(request, response);
}
private FilterConfig filterConfig;
@Override
public void init(FilterConfig config) throws ServletException {
  filterConfig=config;
}
}

2.web.xml里面的配置如下:

<context-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</context-param>

<filter>
<filter-name>EncodingFilter</filter-name>
<filter-class>com.xuyi.filter.EncodingFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>EncodingFilter</filter-name>
<url-pattern>/*</url-pattern>

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