由于在Spring MVC开发中大量用GB2312出现此问题，解决方法可以有下方法。

统一使用UTF-8

1.在web.xml中过滤编码格式,代码如下

Xml代码

<!--编码过滤器--> 
<filter> 
<filter-name>encodingFilter</filter-name> 
<filter-class> 
org.springframework.web.filter.CharacterEncodingFilter  
</filter-class> 
<init-param> 
<param-name>encoding</param-name> 
<param-value>UTF-8</param-value> 
</init-param> 
<init-param> 
<param-name>forceEncoding</param-name> 
<param-value>false</param-value> 
</init-param> 
</filter> 
<filter-mapping> 
<filter-name>encodingFilter</filter-name> 
<url-pattern>*.html</url-pattern> 
</filter-mapping> 
 
<!--编码过滤器--> 
 <filter> 
<filter-name>encodingFilter</filter-name> 
<filter-class> 
org.springframework.web.filter.CharacterEncodingFilter  
</filter-class> 
<init-param> 
<param-name>encoding</param-name> 
<param-value>UTF-8</param-value> 
</init-param> 
<init-param> 
<param-name>forceEncoding</param-name> 
<param-value>false</param-value> 
</init-param> 
</filter> 
<filter-mapping> 
<filter-name>encodingFilter</filter-name> 
<url-pattern>*.html</url-pattern> 
</filter-mapping> 

2.jsp页面的编码格式全部用UTF-8

3.控制器直接用request.getparamer()接收

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