Java中的过滤器
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package ittest.merlini.Util; 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; import javax.servlet.http.HttpServlet; public class CharacterEncodingFilter extends HttpServlet implements Filter { protected String encoding = null; public void init(FilterConfig filterConfig) throws ServletException { this.encoding = filterConfig.getInitParameter("encoding"); } public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { request.setCharacterEncoding(encoding); response.setContentType("text/html;charset=" + encoding); chain.doFilter(request, response); } public void destroy() { } }
web.xml
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>ittest.merlini.Util.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
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posted on 2014-02-08 11:24 天地一连线_孤鸿挂飘渺 阅读(180) 评论(0) 编辑 收藏 举报