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过滤器 解决中文乱码

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锁定老帖子 主题：过滤器 解决中文乱码
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  • villain564
  • 等级: 初级会员
  • 性别:
  • 文章: 12
  • 积分: 70
  • 来自: 北京
   发表时间：2008-09-23  
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本文主要讲解在网站开发中两个方面的问题，一是中文乱码，二是 css 的控制：比如标题栏按钮按下的颜色控制等，例如优酷的标题栏，处在哪个标题下该标题颜色就会加深。涉及到了jsp的动作标签<jsp:include page=""><jsp:param name="" value="" /> [color=red]注意：所涉及的css只要在web-inf下建个css文件夹在建一个空css文件把我给的代码拷进去就可以了[/color]
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1.设计较为简单，主要涉及两个jsp页面。其中的一个包含另一个并向其传递参数（中文参数）为了解决中文乱码问题而使用filter.当然也可以不传递中文，主要是为了学习一下fiter的使用并检验一下。
2. [color=orange]第一个jsp页面为head.jsp代码如下
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!-- Header -->
<div id="header">
<h1 id="logo">
<a href="./" title="[Go to homepage]"><img src="tmp/logo.gif" alt="" /></a>
</h1>
<hr class="noscreen" />

<!-- Navigation -->
<div id="nav">
<a href="#" id="nav-active">Homepage</a><span>|</span>
<a href="#">About us</a><span>|</span>
<a href="#">Support</a><span>|</span>
<a href="#">Contact</a>
</div>
<!-- /nav -->
</div>
<!-- /header -->

<!-- Tray -->
<div id="tray">

<ul>
<c:if test="${param.page eq '主页'}">
<li id="tray-active"><a href="#">个人中心</a></li>
</c:if>
<c:if test="${param.page ne '主页''}">
<li><a href="#">个人中心</a></li>
</c:if>
<c:if test="${param.page eq '第二页'}">
<li id="tray-active"><a href="#">个人信息维护</a></li>
</c:if>
<c:if test="${param.page ne '第二页'}">
<li><a href="#">个人信息维护</a></li>
</c:if>
<c:if test="${param.page eq 'jobinfo'}">
<li id="tray-active"><a href="#">就业信息维护</a></li>
</c:if>
<c:if test="${param.page ne 'jobinfo'}">
<li><a href="#">就业信息维护</a></li>
</c:if>
</ul>

<!-- Search -->
<div id="search" class="box">
<form action="#" method="get">
<div class="box">
<div id="search-input">
<span class="noscreen">Search:</span>
<input type="text" size="30" name="" value="Search" />
</div>
<div id="search-submit">
<input type="image" src="design/search-submit.gif" value="OK" />
</div>
</div>
</form>
</div>
<!-- /search -->

<hr class="noscreen" />
</div>
<!-- /tray -->
3.第二个jsp test.jsp 代码如下
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <meta http-equiv="content-language" content="en" />
    <meta name="robots" content="all,follow" />

    <meta name="author" lang="en" content="All: Your name [www.url.com]; e-mail: info@url.com" />
    <meta name="copyright" lang="en" content="Webdesign: Nuvio [www.nuvio.cz]; e-mail: ahoj@nuvio.cz" />

    <meta name="description" content="..." />
    <meta name="keywords" content="..." />

    <link rel="stylesheet" media="screen,projection" type="text/css" href="css/reset.css" />
    <link rel="stylesheet" media="screen,projection" type="text/css" href="css/main.css" />
    <!--[if lte IE 6]><link rel="stylesheet" type="text/css" href="css/main-msie.css" /><![endif]-->
    <link rel="stylesheet" media="screen,projection" type="text/css" href="css/style.css" />
    <link rel="stylesheet" media="print" type="text/css" href="css/print.css" />

    <title>Impress</title>
</head>

<body>

<div id="main">
    <!-- Header -->
    <jsp:include page="include/stdHead.jsp">
    <jsp:param name="page" value="主页"/> //此处的value值自己变动看效果
    </jsp:include>
</div>
</body>
</html>
3.EncodingFiter.java的代码如下
package com.czg.common;

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.HttpServletRequest;

public class EncodingFilter implements Filter {

protected FilterConfig filterConfig;
protected String targetEncoding = null;

public void destroy() {

this.filterConfig = null;

}

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

System.out.println("使用"+ targetEncoding + "编码");

HttpServletRequest request2 = (HttpServletRequest)request;
request2.setCharacterEncoding(targetEncoding);
chain.doFilter(request, response);

}

public void init(FilterConfig filterConfig) throws ServletException {

this.filterConfig = filterConfig;
this.targetEncoding = filterConfig.getInitParameter("enconding");


}



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

}
4.配置xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>encoding</filter-name>
<filter-class>com.czg.common.EncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
 
</web-app>
5.css的代码如下
代码压缩文件上传不上去，有需要和我联系villain564@sina.com
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  • hechenhui1983
  • 等级: 初级会员
  • 性别:
  • 文章: 6
  • 积分: 30
  • 来自: 北京
   发表时间：2008-09-23  
http://www.abab123.com/bbs/down.asp?html=1042745
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