springmvc的乱码处理

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springmvc的乱码处理

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用psot请求写一个表单提交 会出现乱码

 <!--乱码处理-->
    <filter>
        <filter-name>encoding</filter-name>
        <filter-class>com.lishao.filter.EncodingFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

在web.xml中写这个是个工具类

package com.lishao.filter;

import javax.servlet.*;
import java.io.IOException;

public class EncodingFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        servletRequest.setCharacterEncoding("utf-8");
        servletResponse.setCharacterEncoding("utf-8");
        filterChain.doFilter(servletRequest,servletResponse);
    }

    @Override
    public void destroy() {

    }
}

就会解决乱码

或者tomcat中修改配置文件