如何解决POST请求中文乱码问题,GET的又如何处理呢?

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post:
在web.xml中加入:

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

对于get请求中文参数出现乱码解决方法有两个:
1.修改tomcat配置文件添加编码与工程编码一致,如下:

<ConnectorURIEncoding="utf-8" connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>
  1. 另外一种方法对参数进行重新编码:
String userName = new String(request.getParamter("userName").getBytes("ISO8859-1"),"utf-8")

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转载自blog.csdn.net/qq_32601201/article/details/68066525
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