org.springframework.web.filter.CharacterEncodingFilter

最新推荐文章于 2021-07-25 18:05:23 发布

最新推荐文章于 2021-07-25 18:05:23 发布 · 149 阅读

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本文介绍如何通过web.xml中的CharacterEncodingFilter设置请求的字符编码，确保浏览器即使未指定字符集也能正确处理。此配置适用于Spring MVC应用，可以强制设置编码或仅在未定义时采用。

web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="2.4">

    <filter>
      <filter-name>CharacterEncodingFilter</filter-name>
      <filter-class>
           org.springframework.web.filter.CharacterEncodingFilter
      </filter-class>
      init-param>
       <param-name>encoding</param-name>
       <param-value>GB2312</param-value>
      </init-param>
      <init-param>
       <param-name>forceEncoding</param-name>
       <param-value>true</param-value>
      </init-param>
     </filter>

　　<filter-mapping>
　　<filter-name>SetCharacterEncoding</filter-name>
　　<url-pattern>*.jsp</url-pattern>
　　</filter-mapping>

</web-app>

public class CharacterEncodingFilter

extends OncePerRequestFilter

Servlet 2.3/2.4 Filter that allows one to specify a character encoding for requests. This is useful because current browsers typically do not set a character encoding even if specified in the HTML page or form.

This filter can either apply its encoding if the request does not already specify an encoding, or enforce this filter's encoding in any case ("forceEncoding"="true"). In the latter case, the encoding will also be applied as default response encoding on Servlet 2.4+ containers (although this will usually be overridden by a full content type set in the view).

KE 2007-09-12 23:27 发表评论