Spring MVC 修改request參數為 UTF-8 編碼

Spring MVC 修改request參數編碼為UTF-8的方法如下。

修改request參數編碼為UTF-8必須在應用程式的web.xml設定CharacterEncodingFilter如下，必須排在所有的filter的最前（上）面確保編碼設定會先被執行。

web.xml

<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>true</param-value>   
    </init-param>   
    <async-supported>true</async-supported>
</filter>
<filter-mapping>   
    <filter-name>encodingFilter</filter-name>   
    <url-pattern>/*</url-pattern>
</filter-mapping>