SpringMvc---编码过滤器（解决乱码问题）

目录

一、介绍

二、字符编码过滤器

一、介绍

在传递参数时，tomcat8以上能处理get请求的中文乱码，danshibunengqingqiupost请求的中文乱码。

二、字符编码过滤器

对于出现的中文乱码问题，SpringMvc提供了处理中文乱码的过滤器，在web.xml中配置该过滤器即可解决中文乱码问题。

 

<filter>
  <filter-name>encFilterfilter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
  <init-param>
    <param-name>encodingparam-name>
    <param-value>utf-8param-value>
  init-param>
filter>
<filter-mapping>
  <filter-name>encFilterfilter-name>
  <url-pattern>/*url-pattern>
filter-mapping>

完整的web.xml代码如下：

web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >
 
<web-app>
  <display-name>Archetype Created Web Applicationdisplay-name>
  
  <filter>
    <filter-name>encFilterfilter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    <init-param>
      <param-name>encodingparam-name>
      <param-value>utf-8param-value>
    init-param>
  filter>
  <filter-mapping>
    <filter-name>encFilterfilter-name>
    <url-pattern>/*url-pattern>
  filter-mapping>
 
 
 
  
  <servlet>
    <servlet-name>dispatcherServletservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    <init-param>
      <param-name>contextConfigLocationparam-name>
      <param-value>classpath:springmvc.xmlparam-value>
    init-param>
    <load-on-startup>1load-on-startup>
  servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServletservlet-name>
    <url-pattern>/url-pattern>
  servlet-mapping>
web-app>