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2025-02-20 f537abe9f3646c739beaf15076246a2f71a347e9

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package com.yeshi.buwan.filter;
 
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
 
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
 
/**
 * @author hxh
 * @title: RequestFilter
 * @description: request过滤器
 * @date 2021/10/16 13:40
 */
public class RequestFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
 
    }
 
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) servletRequest;
        String contentType = httpRequest.getContentType();
        if (contentType != null && contentType.contains("multipart/form-data")) {
            httpRequest.setCharacterEncoding("UTF-8");
            MultipartResolver resolver = new CommonsMultipartResolver(httpRequest.getSession().getServletContext());
            MultipartHttpServletRequest multipartRequest = resolver.resolveMultipart(httpRequest);
            // 将转化后的 request 放入过滤链中
            servletRequest = multipartRequest;
        }
        filterChain.doFilter(servletRequest, servletResponse);
    }
 
    @Override
    public void destroy() {
 
    }
}