JSP页面传值乱码过滤方法

本文实例讲述了jsp页面传值乱码过滤方法。分享给大家供大家参考，具体如下：

1.过滤器类：

package com.token.t1;
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 characterencodingfilter implements filter {
  public void destroy() {
  }
  public void dofilter(servletrequest request, servletresponse response,
      filterchain chain) throws ioexception, servletexception {
　　　　 request.setcharacterencoding("gbk");
    chain.dofilter(request, response);
  }
  public void init(filterconfig arg0) throws servletexception {
  }
}

2.xml文件配置：

<?xml version="1.0" encoding="utf-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
  xsi:schemalocation="http://java.sun.com/xml/ns/javaee 
  http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!--过滤器配置-->
　　<filter>
    <filter-name>characterencodingfilter</filter-name>   <!--此名字与<filter-mapping>下<filter-name>相同即可 -->
    <filter-class>com.token.t1.characterencodingfilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>characterencodingfilter</filter-name>
    <url-pattern> /* </url-pattern>
  </filter-mapping>
  <display-name></display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

当我用<form>的默认提交方式提交时，此方法过滤不了，需要设置 method="post"，才可以过滤

希望本文所述对大家jsp程序设计有所帮助。