Spring mvc编码和“？”符号代替html中的utf-8符号。

<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>
</filter>
<filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<bean id="characterEncodingFilter" class="org.springframework.web.filter.CharacterEncodingFilter">
    <property name="encoding" value="UTF-8"/>
    <property name="forceEncoding" value="true"/>
</bean>

@RequestMapping(value = "/example", produces = "text/html;charset=UTF-8")

http://example.com/path?param1=value1&param2=value2