前台传参到后台中文乱码解决方法

解决前端传参到后台的字符集编码问题！！!

第一种：---java的web.xml中加上字符集过滤 （推荐使用）

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

第二种：有局限性！当前有效

String str = new String(keyWord.getBytes("iso-8859-1"),"UTF-8");